You need faster game loads, quicker project saves, or more storage for your creative work. PCIe 4.0 SSDs deliver sequential read speeds up to 7,450 MB/s and write speeds up to 6,900 MB/s, far outpacing older SATA drives and even Gen3 NVMe models. This guide evaluates 10 high-performance drives from Samsung, WD, Lexar, Crucial, Kingston, and SanDisk to help you choose the right fit for gaming rigs, content creation workstations, or everyday computing.
Whether you prioritize raw speed, large capacity, or power efficiency, you’ll find a drive here that matches your needs. We cover the key specifications that matter and explain how to weigh speed against endurance and thermal control. If you’re building a high-performance PC, you might also want to explore our guide on the best Z890 motherboard to pair with your new SSD.
Quick answer
This guide compares 10 picks, with WD_BLACK SN7100 1TB NVMe SSD Gen4 PCIe 7,250MB/s Gaming ranked first. Samsung 990 EVO Plus 2TB NVMe SSD: 7,250 MB/s PCIe 4.0 holds the highest customer rating among them. Kingston NV3 1TB NVMe SSD PCIe 4.0 | 6000MB/s Read has the most customer reviews.
The SN7100 delivers 7,250 MB/s reads and 6,900 MB/s writes with TLC 3D NAND, targeting handheld gamers and laptop users who need fast load times in portable form factors. Its 1TB capacity fits most Steam libraries and works natively in ROG Ally or Steam Deck expansion slots. WD's Gen4 implementation balances speed and power efficiency for mobile use.
Pros
- 7,250 MB/s read and 6,900 MB/s write speeds match top Gen4 drives
- 100% more power efficient than previous generation, extends battery life
- TLC 3D NAND provides better reliability than QLC alternatives
- Runs cool in tight laptop and handheld enclosures
Cons
- Thermal throttling under sustained extreme workloads drops speeds to 4,500 MB/s
- Sustained write performance trails competitors when temperatures climb
The WD_BLACK SN7100 delivers exceptional PCIe Gen4 performance tailored for compact systems where thermal efficiency matters as much as raw speed. Sequential reads hit 7,250 MB/s and writes reach 6,900 MB/s, placing it firmly in the top tier of Gen4 drives. Real-world benchmarks confirm these figures, with users seeing consistent 7,000 MB/s reads and 6,200 MB/s writes alongside strong random 4K IOPS that accelerate daily workflows. The TLC 3D NAND construction offers better endurance than budget QLC alternatives. What separates this drive is its power efficiency, operating 100% more efficiently than the prior generation. It runs cool in cramped laptop chassis and ultraportables like the Framework 16, making it ideal for mobile gaming where battery life and thermal headroom are limited. Under extreme sustained loads, temperatures can climb to 59°C and speeds may throttle to 4,500 MB/s, but typical gaming and productivity workloads stay well within thermal limits. The compact M.2 2280 form factor fits standard slots without hassle.
Storage Capacity: 1TB
Interface: PCIe Gen4 NVMe
Form Factor: M.2 2280
Read Speed: Up to 7,250 MB/s
Write Speed: Up to 6,900 MB/s
Memory Type: TLC 3D NAND
Dimensions: 3.14in L x 0.86in W x 0.04in Th
Weight: 4.54g
Warranty: 3-Year Limited
Compatible Devices: Laptops, Gaming Handhelds, Desktops (Windows/x86 systems)
Buy this if you need Gen4 speed in a laptop, handheld gaming device, or compact desktop where power draw and heat output matter. It's perfect for mobile gamers who want faster load times without draining the battery or spinning fans constantly. Skip it if you're building a desktop with robust cooling and can afford a drive with better sustained write performance, or if you rarely push the system hard enough to notice the difference over a good Gen3 drive.
The Optimus 5100's power-efficient architecture and PCIe 4.0 interface make it ideal for thin-and-light laptops where battery life matters as much as speed. At 1TB, it handles OS, productivity suites, and moderate media storage without thermal throttling in compact chassis. The M.2 2280 design ensures compatibility with most ultrabooks and mini-PCs.
Pros
- Outstanding speed at this price point with verified 7,100MB/s read performance
- Efficient thermal performance and low power draw keeps laptops cool and extends battery life
- Wide compatibility across laptops, desktops, and gaming consoles including PS5 and Xbox Series S
- Reliable installation experience with standard M.2 2280 form factor that fits most modern systems
- Strong customer satisfaction with consistent 5-star reviews praising real-world performance gains
Cons
- QLC NAND technology may show performance degradation with sustained heavy workloads compared to TLC drives
- Limited cache memory relative to higher-end models may impact performance in extreme multitasking scenarios
- Requires separate cable and enclosure for external use during data migration
The SanDisk Optimus 5100 is a high-capacity NVMe SSD designed for creators, gamers, and everyday users who need fast storage without paying premium prices. With capacities up to 4TB and PCIe 4.0 connectivity, it's built to handle 4K video editing, gaming libraries, and intensive multitasking on both laptops and desktops.
Performance is the Optimus 5100's strongest suit. Sequential read speeds of 7,100MB/s and write speeds up to 6,700MB/s put it in line with premium competitors, while the integrated nCache 4.0 technology ensures consistent performance during everyday use. Real-world testing by verified buyers confirms that boot times are noticeably faster and applications launch without lag, making it a meaningful upgrade from older SATA drives or slower NVMe options.
The drive excels in efficiency and versatility. Its power-efficient architecture consumes less energy than many competitors, translating to longer battery life on laptops. It's backward compatible with PCIe 3.0 slots and works reliably across Windows PCs, Mac systems, PlayStation 5, and Xbox Series S, giving buyers flexibility in how they deploy it.
One consideration is the use of QLC NAND, which prioritizes capacity and cost over sustained performance under extreme workloads. For professional video production involving constant rendering or heavy server workloads, TLC-based drives might be better. However, for most creators and gamers, the trade-off is negligible, and the 1,200 TBW endurance rating proves SanDisk designed this for durability.
The SanDisk Optimus 5100 is a smart purchase for anyone upgrading storage without breaking the bank. It delivers legitimate PCIe 4.0 speeds, builds trust through a 5-year warranty, and has earned strong customer satisfaction. At this price point, it's difficult to find a faster, more reliable alternative.
Capacity: 1TB (also available in 500GB, 2TB, and 4TB)
Interface: PCIe 4.0 x4
Form Factor: M.2 2280
Read Speed: 7,100 MB/s (1TB and 2TB models)
Write Speed: 6,700 MB/s
NAND Technology: 8th Generation SanDisk BiCS QLC 3D CBA
Endurance Rating: Up to 1,200 TBW (4TB model)
Power Efficiency: Low-power design for extended battery life
Warranty: 5-year limited warranty
Compatibility: PCIe 3.0 and 4.0 slots, Windows PCs, Mac systems, PlayStation 5, Xbox Series S
Weight: 5.7g
Included Software: Free Acronis True Image for SanDisk migration utility
The 990 EVO Plus delivers 7,250 MB/s sequential reads, making it ideal for users who need fast boot times and application loading without overspending on flagship models. Its dual PCIe Gen 4x4 and 5x2 interface ensures compatibility across older and newer motherboards, while the 2TB capacity provides ample room for operating systems, creative software, and large game libraries. Backward compatibility means it slots into existing builds seamlessly.
Pros
- Up to 7,250 MB/s read and 6,300 MB/s write, near the PCIe 4.0 ceiling
- Intelligent TurboWrite 2.0 prevents speed drops during large file transfers
- Dual PCIe 4.0x4 and 5.0x2 support keeps the drive compatible with future platforms
- Low operating temps (30 to 50°C) backed by a 73% more efficient controller
Cons
- Full speed requires a PCIe 4.0 or 5.0 capable motherboard with proper BIOS support
- Overkill for light everyday workloads where a more affordable PCIe 4.0 drive would suffice
The Samsung 990 EVO Plus 2TB earns its place on any PCIe 4.0 SSD shortlist by pushing the interface close to its ceiling. Sequential reads hit 7,250 MB/s and writes reach 6,300 MB/s, numbers that translate to real-world gains: boot times that drop from around 25 seconds to under 8, and game load screens that shrink noticeably. Intelligent TurboWrite 2.0 keeps those speeds stable during large transfers instead of letting performance sag mid-copy, which is a common weakness in budget PCIe 4.0 drives. The dual-interface design supports both PCIe 4.0x4 and PCIe 5.0x2, so the drive works on current Gen 4 boards and carries forward to next-gen platforms without needing a replacement. Thermal behavior is a genuine strength: the nickel-coated controller is 73 percent more power-efficient than standard designs, and users report steady operating temps between 30 and 50 degrees Celsius under sustained load. A 5-year warranty backs the whole package, making the 990 EVO Plus a confident long-term pick for a speed-focused build.
Storage and Interface: 2TB capacity, NVMe M.2 2280 form factor, PCIe Gen 4x4 and Gen 5x2 compatible
Performance: Sequential read speeds up to 7,250 MB/s, sequential write speeds up to 6,300 MB/s, random access optimized
Power and Thermal: Nickel-coated controller with 73% improved power efficiency, typical operating temperature 30-50 degrees Celsius
Compatibility: Desktop and laptop systems, backward compatible with legacy systems, forward compatible with PCIe 5.0 slots, PlayStation 5 compatible
Reliability: 1,200 TBW write endurance rating, 5-year manufacturer warranty, Samsung Magician software suite included
A strong fit for gamers, content creators, and professionals building or upgrading a PCIe 4.0 system who want top-tier sequential speeds and reliable sustained performance. Works in both desktops and laptops. Skip it if your motherboard tops out at PCIe 3.0 since you will not see the rated speeds, or if you only need light everyday storage and do not require this level of throughput.
Pros
- Exceptional read and write performance at 5,000MB/s and 4,200MB/s respectively
- Superior power efficiency cuts energy consumption while boosting performance per watt
- Intelligent thermal management prevents performance dips during sustained workloads
- Flexible PCIe interface works with both Gen 4 and Gen 5 systems
- Samsung Magician software provides automated monitoring and firmware updates
Cons
- Requires PCIe 4.0 or 5.0 support, limiting compatibility with older systems
- Premium pricing positions it above budget-friendly alternatives
- New model with limited real-world user reviews available at launch
The Samsung 990 EVO is a high-performance NVMe SSD designed for users who demand speed without compromise. It targets gamers, video editors, 3D artists, and power users who need rapid file access and sustained performance during demanding workflows. The 2TB capacity offers ample storage for modern applications, games, and media libraries.
This drive excels with sequential read speeds up to 5,000MB/s and write speeds up to 4,200MB/s, translating to near-instant game launches and file operations. What sets it apart is the 70% improvement in power efficiency over the previous generation, meaning you get higher performance with lower power consumption and heat generation. The intelligent thermal control system actively manages temperatures to prevent throttling during intensive sessions, protecting your work and ensuring consistent performance.
The 990 EVO features Samsung's refined controller and heat-spreading label for effective thermal dissipation. Its compact M.2 2280 form factor fits standard laptop and desktop slots, while the PCIe 5.0 interface with PCIe 4.0 backward compatibility ensures broad system compatibility. At just 9.07 grams, it adds negligible weight to laptops and integrates seamlessly into desktop builds.
The main limitation is compatibility requirement. This drive needs a system supporting PCIe 4.0 or newer, restricting use on older motherboards and systems. Additionally, as a newer model, it commands a premium price compared to previous-generation alternatives. For systems that support it, these limitations fade when you experience the speed and efficiency gains.
The Samsung 990 EVO represents the cutting edge of consumer NVMe technology. Backed by Samsung's 5-year warranty and Magician software for ongoing management, it delivers future-proof storage for professionals and enthusiasts who refuse to compromise on speed or reliability.
Capacity: 2TB
Form Factor: M.2 2280
Interface: PCIe Gen 4x4 and PCIe Gen 5x2
Read Speed: Up to 5,000MB/s
Write Speed: Up to 4,200MB/s
Cache Memory: 2GB
Encryption: 256-bit AES hardware encryption
Dimensions: 80mm x 22mm x 3.5mm
Weight: 9.07 grams
Warranty: 5 years
Model Number: MZ-V9E2T0B/AM
Compatible Systems: PC, Mac, PlayStation 5, Xbox Series X/S
Best For: Gamers seeking instant load times, content creators managing large video files, 3D artists rendering complex scenes, software developers running virtual machines, and anyone upgrading to a modern system with PCIe 4.0 or 5.0 support.
Consider Alternatives If: Your system lacks PCIe 4.0 support, you have a tight budget and can accept slower speeds, or you need maximum storage capacity over performance. Budget-friendly SSDs offer good value if performance needs are moderate.
System Requirements: Motherboard with PCIe 4.0 x4 or PCIe 5.0 x2 M.2 slot, compatible with most modern AMD Ryzen and Intel Core systems built in the last 3-4 years.
The NM790 combines 7,400 MB/s reads with 4TB capacity at a competitive tier, appealing to users who prioritize raw storage space for media libraries and game collections. Its single-sided design fits into tight laptop chassis and PS5 expansion slots without thermal issues. Lexar's Gen 4x4 implementation delivers consistent performance across sequential and random workloads.
Pros
- Excellent value for 4TB capacity, particularly for enthusiasts upgrading from Gen 3 storage
- Proven durability with customers reporting stable performance over extended heavy use
- Reliable TLC NAND delivers better longevity than cheaper QLC alternatives
- Impressive thermal efficiency reduces power draw and system heat compared to competitors
- Works seamlessly with PlayStation 5, enabling large game library storage
Cons
- Premium pricing compared to some budget PCIe Gen 4 alternatives, though justified by TLC quality
- Real-world performance varies when used as external storage, depending on host connection type
- 4.54g weight and single-sided design mean careful handling required during installation
The Lexar NM790 4TB is a high-capacity internal NVMe SSD built for demanding users: gamers tired of storage juggling, video editors processing massive files, and creators who need reliable, fast access to large datasets. At 4TB, it eliminates the constant delete-to-install dance that plagues smaller drives.
Performance is the standout here. With 7400MB/s read and 6500MB/s write speeds over PCIe Gen 4, this drive is roughly twice as fast as older Gen 3 solutions. The HMB 3.0 feature intelligently uses your system's DRAM as cache, smoothing out real-world performance during sustained transfers. What sets it apart from cheaper alternatives is the TLC NAND architecture, which proves more durable than QLC found in budget rivals, addressing a common longevity concern among power users.
Build quality is straightforward but effective. The single-sided M.2 2280 form factor fits any modern desktop or laptop without compatibility headaches. At just 4.54 grams, it's lightweight and low-profile. Installation is simple, and the drive integrates seamlessly with PS5, making it a practical storage solution for console gamers. Real-world testing from users confirms solid performance even under heavy load and sustained data transfer.
The main drawback is pricing. While the value proposition improves during sales, this drive sits at a premium tier. Additionally, if you plan to use it in external docks or Thunderbolt setups, performance will be limited by the interface speed rather than the drive's raw capability.
Verdict: The Lexar NM790 is a smart pick for anyone needing fast, reliable 4TB storage with longevity credentials. The TLC NAND and proven durability justify the cost, especially for content creators and gamers who can't afford drive failures. Five-year warranty coverage adds confidence to the purchase.
Gamers upgrading from Gen 3 storage or running low on space will appreciate the speed boost and capacity. Modern AAA titles benefit from faster load times, and the 4TB capacity handles multiple large games simultaneously.
Content creators working with high-resolution video, large photo libraries, or audio samples gain immediate benefits from the 7400MB/s read speed. The TLC NAND reliability is critical for professional workflows where data integrity matters.
PlayStation 5 owners can expand their console's internal storage with plug-and-play compatibility. The drive supports all PS5 titles and provides headroom for future releases.
Skip this if you primarily need secondary storage for backups or archival, or if budget is the absolute priority. Budget QLC drives will work fine for non-critical data.
Capacity: 4TB (4000GB)
Interface: NVMe M.2 2280
Protocol: PCIe 4.0 x4
Read Speed: 7400MB/s
Write Speed: 6500MB/s
NAND Type: TLC
Endurance: 3000TBW
Cache: HMB 3.0, Dynamic SLC Cache
Form Factor: M.2 2280, single-sided
Weight: 4.54g
Compatibility: Desktop, Laptop, PlayStation 5
Warranty: 5-year limited
Model: LNM790X004T-RNNNU
This 4TB PRO variant hits 7,450 MB/s reads and 6,900 MB/s writes, making it the go-to for professionals editing 8K footage or managing massive datasets. The capacity eliminates constant file juggling, while PCIe 4.0 NVMe ensures minimal render times and export delays. Samsung's thermal management and endurance ratings support heavy daily workloads without throttling.
Pros
- Exceptional sequential speeds rank among the fastest consumer SSDs available
- Excellent thermal design keeps drive cool under sustained heavy loads
- Generous 4TB capacity eliminates need for multiple drives or frequent storage management
- Easy installation and intuitive Samsung Magician software for seamless management
- PlayStation 5 compatible for expanding console storage capacity
Cons
- Requires PCIe 4.0 capable motherboard to achieve advertised speeds, limiting compatibility with older systems
- Overkill performance specs for general productivity tasks like web browsing and document editing
The Samsung 990 PRO 4TB is a high-end NVMe SSD designed for power users who demand maximum storage performance. This drive targets serious gamers, video editors, 3D artists, and data professionals who need fast file access and sustained throughput for demanding creative and gaming workloads.
Performance is the standout feature. With sequential read speeds reaching 7,450MB/s and write speeds of 6,900MB/s, the 990 PRO delivers exceptional real-world responsiveness. Games launch faster, large video projects render more quickly, and massive file transfers complete in seconds. The PCIe 4.0 interface ensures this speed advantage persists over time as workloads grow.
The drive's thermal architecture sets it apart from competition. The integrated Heat Spreader combined with Dynamic Thermal Guard technology prevents throttling even during extended, intensive use. Content creators working on back-to-back exports or gamers pushing their systems hard will appreciate stable, consistent performance without speed degradation.
The 4TB capacity in a tiny M.2 2280 form factor offers practical versatility. It fits seamlessly into desktop gaming PCs, high-end laptops, and even PlayStation 5 consoles. The included Samsung Magician software makes drive management straightforward, handling updates and performance optimization automatically.
The main consideration is cost and system compatibility. At this price point, the 990 PRO is an investment best suited for users whose workflows genuinely benefit from top-tier speeds. Your motherboard must support PCIe 4.0 to unlock the drive's full potential. For general computing tasks, more affordable alternatives exist. But for serious gaming or professional content creation, the 990 PRO delivers excellent value through raw performance and proven reliability.
Storage Capacity: 4TB
Interface: NVMe M.2 PCIe 4.0
Form Factor: M.2 2280 (3.15 x 0.87 x 0.09 inches)
Sequential Read Speed: Up to 7,450MB/s
Sequential Write Speed: Up to 6,900MB/s
Cache Memory: 432GB
Thermal Management: Heat Spreader and Dynamic Thermal Guard
Compatibility: Desktop PCs, Laptops, PlayStation 5
Model Number: MZ-V9P4T0BW
Weight: 9 grams
Color: Black
Included Software: Samsung Magician
Ideal For: This drive is perfect for hardcore gamers who want minimal loading times, professional video editors working with 4K or higher resolution footage, 3D artists and animators, data analysts processing large datasets, and content creators who value workflow speed above all else.
Great For: Anyone upgrading from older SATA drives who wants a dramatic performance boost, PlayStation 5 owners expanding their console storage, and power users building or upgrading high-performance workstations.
Consider Alternatives If: You primarily use your computer for email, web browsing, and document editing, or if you have an older motherboard without PCIe 4.0 support, or if you're budget-conscious and need storage capacity rather than peak performance.
Kingston's NV3 offers 6,000 MB/s reads and Gen 4x4 bandwidth at 1TB, serving mainstream users who want a noticeable upgrade over SATA without flagship pricing. Backward compatibility with Gen 3 systems extends its utility across multiple builds. The drive handles everyday tasks, moderate gaming, and productivity workloads with consistent responsiveness.
Pros
- 6,000MB/s reads deliver strong PCIe 4.0 performance
- Low power consumption reduces heat and throttling risk
- Includes Acronis cloning software for easy migration
- Single-sided design fits tight spaces without blocking slots
Cons
- 4,000MB/s writes lag behind read speeds by 2,000MB/s
- No heatspreader included for additional thermal management
The Kingston NV3 offers solid PCIe 4.0 performance at a price point that makes sense for budget-conscious builders and upgraders in 2026. With 6,000MB/s read speeds, it delivers a substantial leap over SATA SSDs while keeping costs in check. Gaming loads significantly faster, boot times drop noticeably, and general system responsiveness improves across the board. The single-sided M.2 2280 design fits virtually any modern motherboard or laptop without blocking adjacent slots or disrupting airflow. Efficient power consumption keeps heat output manageable, reducing the risk of thermal throttling during extended sessions. Kingston's established reputation for reliability adds confidence, and the included Acronis cloning software simplifies migration from an older drive. The 1TB capacity handles modern operating systems, productivity suites, and a reasonable game library without constant juggling. For users upgrading from aging SATA hardware or building a new system where every dollar counts, the NV3 strikes a practical balance between cost and capability. It won't match the absolute fastest Gen4 drives, but it delivers meaningful speed improvements where it matters most for everyday computing and gaming.
Performance: Read Speed up to 6000 MB/s, Write Speed up to 4000 MB/s, PCIe 4.0 Gen 4x4 interface
Capacity: 1TB, also available in 500GB, 2TB, and 4TB options
Form Factor: M.2 2280 (22mm x 80mm x 0.89mm thickness), single-sided design
Compatibility: Desktop and laptop computers, backward compatible with PCIe 3.0 slots
Cache Memory: 1GB DRAM cache
Warranty: 5-year limited warranty from Kingston
Weight: 4.54 grams
Included Software: Acronis cloning software for data migration
Buy this if you're upgrading from a SATA SSD or building a budget-friendly gaming or productivity PC where PCIe 4.0 speeds matter but extreme performance isn't critical. It suits laptop users who want faster storage without overspending, and content creators working with moderately sized projects. Skip it if you regularly transfer massive files and need maximum write speeds, or if you're building a high-end rig where cutting-edge performance justifies the extra cost. Users with existing Gen4 drives may not see enough improvement to warrant replacement.
The P310 reaches 7,100 MB/s reads in a compact 1TB package, perfect for upgrading older laptops or building budget gaming rigs that still demand Gen 4 speeds. Crucial includes Acronis recovery software, adding peace of mind for users migrating operating systems or recovering data. Its M.2 2280 form factor fits most modern devices without adapter hassles.
Pros
- 7,100MB/s read speeds rival top-tier Gen4 drives
- Broad compatibility with desktops, laptops, and gaming handhelds
- Includes Acronis cloning software and 5-year warranty
- Backward compatible with PCIe Gen3 systems
Cons
- 1TB capacity may feel limited for large game libraries
- No included heatspreader for additional cooling
The Crucial P310 delivers flagship-tier speeds without the flagship price tag, making it an excellent choice for users chasing raw performance in 2026. Its 7,100MB/s read and 6,000MB/s write speeds place it among the fastest PCIe 4.0 drives available, offering twice the throughput of Gen3 alternatives. That translates to noticeably faster game launches, quicker file transfers, and more responsive system behavior during heavy multitasking. The compact M.2 2280 form factor fits standard desktops and laptops, while official support for gaming handhelds like the ROG Ally X and Steam Deck expands its versatility. Crucial includes Acronis True Image for hassle-free drive cloning and backups, adding practical value beyond the hardware itself. The 5-year warranty reflects strong manufacturer confidence. Power efficiency and thermal management are handled well through G8 NAND technology, keeping the drive stable under sustained loads. Backward compatibility with PCIe Gen3 systems ensures you can use it even if your motherboard hasn't caught up to Gen4 yet. For those prioritizing speed and reliability across gaming, creative work, or general computing, the P310 hits the mark.
Capacity: 1TB
Form Factor: M.2 2280
Interface: PCIe Gen4 x4 NVMe
Read Speed: Up to 7,100MB/s
Write Speed: Up to 6,000MB/s
NAND Type: G8
Weight: 10g
Dimensions: 3.15 inch length, 0.86 inch width, 0.09 inch thickness
Compatibility: PCIe Gen4 and Gen3 systems (backward compatible), ROG Ally X, Lenovo Legion Go, AYANEO Kun, Steam Deck, desktops, and laptops
Warranty: 5-year limited warranty
Included Software: Acronis True Image, 1 month Adobe Creative Cloud All-Apps trial, Crucial Storage Executive
Buy this if you want maximum PCIe 4.0 speed for gaming, content creation, or system upgrades without paying ultra-premium prices. It suits desktop builders, laptop upgraders, and handheld gaming console owners who need fast storage that installs quickly and works immediately. Skip it if you need more than 1TB for a massive game library or large video projects, or if you're working with a strict budget where slightly slower speeds would suffice. Users with older Gen3 motherboards can still benefit, but those on extremely tight budgets might find better value elsewhere.
For anyone building or upgrading a PCIe 4.0 system, Samsung's 990 PRO delivers sequential reads up to 7,450 MB/s, making it one of the fastest drives in this generation. The 2TB capacity gives content creators and gamers room to store large game libraries or video projects without juggling external storage. Its M.2 2280 form factor fits virtually every modern desktop and laptop, and the added drop and dust resistance makes it a reliable long-term investment.
Pros
- 7,450 MB/s reads represent peak PCIe Gen4 consumer performance
- 55% improvement in random performance over 980 PRO speeds up file operations
- Intelligent Turbo Write maintains peak speed during sustained transfers
- Military-grade durability with drop, water, and dust resistance
Cons
- Requires PCIe 4.0 motherboard to achieve advertised speeds
- Premium pricing compared to mid-tier Gen4 alternatives
The Samsung 990 PRO 2TB pushes PCIe Gen4 to its practical ceiling with 7,450 MB/s sequential reads and 6,900 MB/s writes, making it one of the fastest consumer drives available in 2026. Beyond raw speed, it delivers a 55% improvement in random performance over the 980 PRO, which translates to faster file operations, quicker boot times, and smoother multitasking. Intelligent Turbo Write keeps performance steady during extended transfers, avoiding the slowdowns that plague cheaper SSDs when the cache fills. The smart heat control system maintains speed without thermal throttling under load. Build quality reflects Samsung's premium positioning, with military-grade durability including 9.8-foot drop resistance and water/dust protection. At 9 grams in the standard M.2 2280 form factor, it fits seamlessly into modern desktops and laptops with PCIe 4.0 slots. A 5-year warranty backs long-term reliability. The only requirement is a PCIe 4.0 compatible motherboard to unlock full speed; older systems will bottleneck performance significantly.
Speed: Sequential Read 7,450 MB/s, Sequential Write 6,900 MB/s, significant random performance improvements over 980 PRO
Interface: PCIe 4.0 NVMe, M.2 2280 form factor, requires PCIe 4.0 slot on motherboard
Efficiency: 1,380 MB/Read per watt and 1,319 MB/Write per watt, representing 50% improvement in power efficiency over previous generation
Durability: 9.8-foot drop resistance, water and dust resistant, 5-year manufacturer warranty
Compatibility: Windows and MacOS systems, verified compatibility with PlayStation 5, works in any PCIe 4.0 compatible desktop or laptop
Buy this if you have a PCIe 4.0 system and need maximum Gen4 speed for competitive gaming, 4K video editing, large dataset processing, or PS5 storage expansion. It's the drive for users who demand premium performance and are willing to pay for it. Skip it if your motherboard only supports PCIe 3.0, or if you're working with lighter workloads where a mid-range Gen4 drive would deliver nearly identical real-world results at lower cost.
WD Blue SN5100 4TB NVMe SSD PCIe Gen 4.0 M.2 2280
With 4TB of storage and 6,900 MB/s read speeds, the SN5100 suits content creators and gamers who need massive capacity without sacrificing Gen 4 performance. The extra headroom handles raw video footage, game installations, and large project files simultaneously. WD's backward compatibility ensures it works in older PCIe 3.0 systems while future-proofing for Gen 4 motherboards.
Pros
- Exceptional read speeds at 6,900MB/s handle demanding creative workflows efficiently
- Substantial 4TB capacity reduces upgrade costs compared to multiple smaller drives
- Proven Sandisk reliability with extensive customer satisfaction rating
- Excellent value proposition in the PCIe Gen 4.0 market segment
- Compact M.2 2280 design fits any modern motherboard without compatibility issues
Cons
- Already marked as replaced by newer SandDisk Optimus model, limiting future support availability
- Limited to read speeds of 6,900MB/s, which is modest compared to flagship Gen 4.0 drives reaching 7,400MB/s or higher
- High upfront cost makes it less accessible for budget-conscious upgrades
The WD Blue SN5100 4TB NVMe SSD is a high-capacity internal drive designed for PC and laptop users who need substantial storage paired with solid PCIe Gen 4.0 performance. It's particularly suited for content creators, video editors, gamers, and professionals working with large project files.
This drive delivers consistent read speeds around 6,900MB/s, which translates to real-world improvements when loading applications, transferring large media files, or working with resource-intensive software. The Sandisk 3D CBA NAND technology combined with nCache 4.0 ensures reliable, sustained performance during heavy workloads. The M.2 2280 form factor means it fits standard NVMe slots on modern motherboards without any compatibility headaches.
Build quality is solid across the board. The drive is compact at just 5.7 grams, runs cool, and includes a limited 5-year warranty backed by Sandisk's reputation for reliability. The included Acronis True Image software simplifies migrating your existing data, making the upgrade process straightforward even for less technical users.
One consideration worth noting: Sandisk has already released the newer Optimus 5100 as the successor, which may affect long-term software support or firmware updates. Additionally, while 6,900MB/s is respectable, some premium Gen 4.0 alternatives push closer to 7,400MB/s.
Overall, the WD Blue SN5100 4TB offers excellent value for anyone needing a large, fast NVMe upgrade. The combination of substantial capacity, proven performance, and consumer-friendly features makes it a solid choice for everyday computing, creative projects, and gaming.
Storage and Form Factor: 4TB capacity in M.2 2280 form factor, weighing just 5.7 grams and measuring 1.24 inches long. This compact design fits any standard NVMe slot on modern motherboards without modification.
Speed and Interface: Sequential read speeds reach 6,900MB/s via PCIe 4.0 interface with 4x lanes. This represents a solid 30% performance jump over older generation WD Blue models in lower capacities.
Memory Technology: Built on Sandisk's next-generation 3D CBA NAND flash with 4TB cache memory and nCache 4.0 optimization. This architecture ensures sustained performance during intensive operations like copying large project folders or rendering files.
Compatibility: Works with any PC or laptop featuring an available NVMe M.2 slot. Backward compatible with previous-generation systems. Supported platforms include Windows and compatible with data migration tools like Acronis True Image for seamless setup.
Buying Guide
Sequential Read and Write Speeds
Sequential speeds determine how quickly the drive transfers large files in one continuous stream. For video editing, game installation, or moving project folders, look for read speeds above 7,000 MB/s and write speeds above 6,000 MB/s.
The Samsung 990 PRO NVMe M.2 SSD, 4 TB, PCIe 4.0 reaches 7,450 MB/s read and 6,900 MB/s write across all capacity tiers, while the Samsung SSD 990 EVO Plus 2TB, PCIe Gen 4×4 delivers 7,250 MB/s read and 6,300 MB/s write with improved power efficiency. If you’re building a gaming system, pairing a fast SSD with DDR5 7200 RAM maximizes responsiveness.
Storage Capacity and Endurance
Capacity needs vary by use case. Gamers with large libraries benefit from 2 TB or 4 TB drives, while content creators handling 4K video projects often need 4 TB or more. Endurance ratings, measured in terabytes written (TBW), indicate how much data the drive can handle over its lifespan.
The Lexar 4TB NM790 Internal NVMe SSD, 7400/6500 MB/s offers 3,000 TBW at 4 TB, providing long-term reliability for heavy workloads. Budget builders can choose the Kingston NV3 1TB M.2 2280 NVMe SSD at 1 TB for everyday tasks without overpaying for capacity they won’t use. For a balanced system, consider our recommendations for the best budget motherboard for 270K Plus builds.
Thermal Management and Power Efficiency
High-speed SSDs generate heat under sustained load, which can throttle performance if thermal controls are inadequate. Heat spreaders, nickel-coated controllers, and dynamic thermal guard technology keep temperatures in check during long rendering sessions or extended gaming.
The Samsung SSD 990 EVO Plus 2TB, PCIe Gen 4×4 uses a nickel-coated controller to reduce power draw while maintaining performance, and the WD_Black SN7100 1TB NVMe SSD – Gen4 PCIe delivers 100% better power efficiency than previous generations, making both ideal for laptops and handheld gaming devices where battery life matters.
Form Factor and Compatibility
Most consumer PCIe 4.0 SSDs use the M.2 2280 form factor, which fits standard motherboard slots. Confirm your system supports PCIe 4.0 before purchasing; these drives work in PCIe 3.0 slots but run at Gen3 speeds.
The Crucial P310 1TB SSD, PCIe Gen4 NVMe M.2 2280 works seamlessly with laptops, desktops, and select handheld consoles including the ROG Ally X and Lenovo Legion Go. It also offers backward compatibility with PCIe Gen3 systems for flexible upgrades. If you’re upgrading a gaming rig, check our guide on the best GPU under $250 to round out your build.
Final Thoughts
For users who need maximum speed and capacity, the Samsung 990 PRO NVMe M.2 SSD, 4 TB, PCIe 4.0 delivers exceptional performance at 7,450 MB/s read with robust thermal control and 3,000 TBW endurance. Budget-conscious builders who want solid Gen4 speeds without overspending should consider the Crucial P310 1TB SSD, PCIe Gen4 NVMe M.2 2280, which offers 7,100 MB/s read speeds and broad compatibility with laptops, desktops, and handheld gaming consoles at a lower entry cost.
Frequently Asked Questions
Do PCIe 4.0 SSDs work in PCIe 3.0 slots?
Yes, PCIe 4.0 SSDs are backward compatible with PCIe 3.0 slots. The drive will function normally but operate at Gen3 speeds, typically around 3,500 MB/s read instead of the full Gen4 performance. You won’t damage the drive or motherboard by using a Gen4 SSD in a Gen3 slot.
How much storage capacity do I need for gaming in 2026?
Modern AAA games often exceed 100 GB per title, with some reaching 150 GB or more. A 1 TB drive provides space for 6 to 10 large games plus the operating system and essential software. If you play multiple live-service games or frequently install new releases, 2 TB or more offers breathing room without constant uninstalls. For a complete gaming setup, explore our recommendations for the best GPU under $200.
What is TBW and why does it matter?
TBW stands for terabytes written, a rating that indicates how much data you can write to the drive over its lifespan before wear becomes a concern. Higher TBW values mean longer endurance. For example, a drive rated at 1,200 TBW can handle heavy daily use for years, while a drive with 600 TBW suits lighter workloads or shorter upgrade cycles.
Can I use a PCIe 4.0 SSD in a laptop?
Yes, as long as your laptop has an M.2 slot that supports NVMe drives. Most modern laptops from 2026 include PCIe 4.0 support, but older models may only support PCIe 3.0, which limits the drive to Gen3 speeds. Check your laptop’s specifications or manual to confirm compatibility before purchasing.
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