A slow storage drive can make even a fast processor feel sluggish. In 2026, PCIe 4.0 SSDs are the standard upgrade for anyone who wants quick boot times, shorter game loads, and responsive creative workflows.
This guide to the best PCIe 4.0 SSDs focuses on drives I would actually install in my own builds. I looked past the marketing claims and compared sequential speeds, real-world feedback, console compatibility, thermal behavior, and warranty coverage.
The result is a list that covers everything from flagship speed demons to budget options for secondary storage. Whether you are upgrading a desktop, expanding a PS5, or adding space to a handheld console, there is a match here.
I also kept the technical jargon readable. You will find quick comparison tables, honest pros and cons, and a buying guide that explains form factors, NAND types, and warranty terms without burying you in spec sheets.
Table of Contents
Top 3 Picks for the Best PCIe 4.0 SSDs in October 2026
If I had to pick just three drives today, these are the ones I would buy. Each one fills a different role, so the right choice depends on your system, budget, and workload.
The Samsung 990 PRO is my overall pick for raw speed. The Crucial P310 is the value leader for handhelds and mainstream desktops. The Kingston NV3 is the budget pick when you want Gen4 performance for the lowest possible cost.
Each of these drives has thousands of verified reviews and ratings above 4.7 stars. That gives me confidence they are not just fast on paper but reliable in real systems.
Best PCIe 4.0 SSDs in 2026
The table below compares all ten drives side by side. Use it to see speeds, features, and compatibility at a glance before reading the full reviews.
| Product | Specifications | Action |
|---|---|---|
 Samsung 990 PRO 2TB |
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Check Latest Price |
 WD_BLACK SN850X 2TB |
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 Crucial P310 1TB |
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 WD_BLACK SN7100 2TB |
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 Kingston NV3 1TB |
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 Acer Predator GM7000 2TB |
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 XPG GAMMIX S70 Blade 2TB |
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 BIWIN Black Opal NV7400 1TB |
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 Acer Predator GM7 1TB |
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 fanxiang S880E 2TB |
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1. Samsung 990 PRO 2TB – Best Overall PCIe 4.0 SSD
Samsung SSD 990 PRO 2TB, PCIe 4.0 M.2 2280, Up to 7,450 MB/s
Read: 7450 MB/s
Write: 6900 MB/s
M.2 2280
5-year warranty
Pros
- Fastest Gen4 speeds up to 7450 MB/s read
- 55% better random performance than 980 PRO
- 50% improved power efficiency
- Works with PS5 and desktops
- Samsung Magician software
Cons
- Premium price
- Runs warm under sustained load without heatsink
This is the drive I point to when someone asks which of the best PCIe 4.0 SSDs is the safest no-compromise choice. Samsung rates it at up to 7,450 MB/s sequential read and 6,900 MB/s write, and owners consistently report that it feels just as fast in daily use as the numbers suggest.
Random performance matters more than sequential speed for most of us, and that is where the 990 PRO pulls ahead. Samsung claims a 55% improvement over the older 980 PRO, which shows up as faster Windows boots, snappier app launches, and shorter level-load screens.
It is also one of the more efficient flagship drives, with Samsung quoting 50% better performance per watt. That is a real benefit in laptops and small-form-factor builds where heat and battery life matter.
The 990 PRO uses the standard M.2 2280 form factor and is officially compatible with PlayStation 5. If you want the heatsink version, it is available separately and can help keep temperatures down during long gaming sessions.
Samsung Magician makes cloning and firmware updates simple. The dashboard is clean, the optimization tools are genuinely useful, and firmware updates install without forcing you to hunt for downloads.
The main downside is cost. You pay a premium for the Samsung name and the fastest Gen4 controller on this list. It also runs warm under sustained writes, so a motherboard heatsink or the optional add-on heatsink is worth using.
Who should buy the Samsung 990 PRO?
Buy it if you want the fastest, most proven Gen4 drive and you also want PS5 compatibility or a high-end workstation boot drive. It is the right choice for gamers, content creators, and anyone who wants storage that will not bottleneck the system for years.
It is especially appealing if you move large files regularly, edit video, or simply want the peace of mind that comes with Samsung’s long track record in the NVMe space.
Who should skip it?
Skip it if you are building a budget rig where a mid-range Gen4 drive will feel identical in games and general tasks. The extra speed is nice, but it is not always noticeable when you are mostly browsing, streaming, and playing everyday titles.
You may also want to look elsewhere if you need massive capacity, since the 990 PRO tops out at 4TB while the WD_BLACK SN850X scales to 8TB.
2. WD_BLACK SN850X 2TB – Best Premium Gaming SSD
WD_BLACK SN850X 2TB NVMe SSD – M.2 2280, Up to 7,300 MB/s Read speeds, Up to 6,300 MB/s write speeds, Gaming Expansion, High Performance Internal Solid State Drive – WDS200T2X0E
Read: 7300 MB/s
Write: 6300 MB/s
M.2 2280
5-year warranty
Pros
- Up to 7300 MB/s read with 8TB max capacity
- WD_BLACK Dashboard and Game Mode 2.0
- Optional heatsink with RGB
- Huge verified review base
- Reliable Sandisk quality
Cons
- Premium price
- Can run warm without heatsink
- Write speeds drop after SLC cache fills
WD’s SN850X has been a staple of high-end gaming builds for good reason. With read speeds up to 7,300 MB/s and capacities scaling all the way to 8TB, it is one of the best PCIe 4.0 SSDs for players who want both speed and room for a massive game library.
The WD_BLACK Dashboard is more useful than most bundled software. Game Mode 2.0 tries to preload game assets, and while the real-world gain varies by title, many owners notice smoother open-world streaming.
This is a DRAM-equipped drive, which helps it stay consistent when the drive is nearly full. If you tend to keep 80% of your SSD occupied with games and projects, that sustained performance matters.
The optional heatsink version adds RGB lighting and a thicker cooler. It is a nice touch for windowed cases, though a standard motherboard M.2 heatsink is enough for most users.
One thing to know is that write speeds can fall after the SLC cache fills during very large file transfers. For gaming and normal workloads that rarely happens, but video editors moving hundreds of gigabytes at once should be aware of the behavior.
It carries a 5-year limited warranty and has one of the largest review bases on this list, which makes it easier to trust long-term reliability. That kind of community feedback is hard to fake.
Who should buy the WD_BLACK SN850X?
Get this drive if you want a gaming-focused choice with huge capacity options and software that actually adds value. It is hard to beat for a high-end PC or PS5 upgrade where you want room to grow.
It is also my top pick if you dream of an 8TB game library on a single drive, since few competitors match that top-end capacity with this level of performance.
Who should skip it?
Skip it if you want the absolute fastest Gen4 drive or the cheapest option. The Samsung 990 PRO edges it out in raw speed, and budget drives like the Kingston NV3 cover basic needs for much less.
You may also skip it if you do not care about RGB or bundled software, since those features are part of what you are paying for with the SN850X line.
3. Crucial P310 1TB – Best Value Handheld SSD
Crucial P310 1TB SSD, PCIe Gen4 NVMe M.2 2280, Up to 7,100MB/s, for Laptop, Desktop (PC), & Handheld Gaming Consoles, Includes Acronis Data Recovery Software, Solid State Drive – CT1000P310SSD801
Read: 7100 MB/s
Write: 6000 MB/s
M.2 2280
5-year warranty
Pros
- Strong Gen4 price-to-performance ratio
- Works with ROG Ally MSI Claw and Steam Deck
- Includes Acronis recovery software
- Backward compatible with PCIe Gen3
- Micron quality
Cons
- Not Prime eligible
- Write speeds below flagship tier
- Thermal limits under sustained load
The Crucial P310 is the drive I recommend when someone wants most of the Gen4 experience without paying flagship money. Crucial quotes up to 7,100 MB/s read and 6,000 MB/s write, which is more than enough for handheld consoles, laptops, and mainstream desktops.
Its biggest practical advantage is compatibility. Crucial lists it for the ASUS ROG Ally, MSI Claw, and Steam Deck, so it is an easy drop-in upgrade for portable gaming systems that accept a 2280 drive.
Crucial includes Acronis data recovery software, which takes some of the stress out of migrating an existing drive. That is a welcome extra at this price point and saves you from hunting for a separate cloning tool.
The P310 uses a DRAM-less design with host memory buffer support. In real-world game loading it is hard to tell apart from DRAM drives, though very heavy sustained writes can expose the difference.
It is backward compatible with PCIe Gen3, so you can use it in an older laptop or desktop and still see a solid boost. When you later upgrade the platform, the drive will scale up to full Gen4 speeds.
It is not Prime eligible, so delivery is standard shipping. That is not a performance issue, but it is worth factoring into your purchase timing if you need the drive quickly.
Who should buy the Crucial P310?
Buy it if you want a standout value pick for a handheld console, laptop, or budget gaming PC. It delivers flagship-like read speeds where it counts and costs noticeably less than top-tier drives.
It is also a smart choice if you want a drive that works today in an older PCIe 3.0 system and can move with you to a faster build later.
Who should skip it?
Skip it if you need the fastest sustained write performance for professional video editing or a heavy workstation. The P310 is fast, but it is not built to match the 990 PRO under constant load.
You may also skip it if Prime shipping is important to you, since this listing ships through standard delivery.
4. WD_BLACK SN7100 2TB – Best for Laptops and Handhelds
WD_Black SN7100 2TB NVMe SSD – Gen4 PCIe, M.2 2280, Up to 7,250 MB/s Read Speed, Up to 6,900 MB/s Write Speed, Next Gen TLC 3D NAND, for Laptops, Handheld Gaming Devices – WDS200T4X0E
Read: 7250 MB/s
Write: 6900 MB/s
M.2 2280
3-year warranty
Pros
- 35% faster than previous generation
- 100% more power efficient
- Ideal for laptops and handhelds
- Console ready
- WD_BLACK Dashboard support
Cons
- 3-year warranty
- Thin design may need extra cooling
- Newer with fewer long-term reviews
WD built the SN7100 with portable gaming and thin laptops in mind. It hits 7,250 MB/s read and 6,900 MB/s write while using roughly half the power of the previous generation, which helps battery life and keeps fans quieter.
That efficiency makes it one of the best PCIe 4.0 SSDs for handheld consoles and compact systems. I would choose it over the SN850X for a Steam Deck-style build where every watt counts.
It still works in desktops and is listed as compatible with Xbox Series S/X and PlayStation 5, so you are not locked into one use case. That flexibility is handy if you reuse parts across builds.
The drive is very thin, which is great for tight spaces but means it can warm up during long writes. Pair it with the system’s included heatsink or a small thermal pad for best results.
WD_BLACK Dashboard support means you get the same Game Mode and monitoring tools as the SN850X. It is a small thing, but unified software makes managing multiple drives easier over time.
The 3-year warranty is shorter than the 5-year coverage on Samsung and older WD drives. For most users that is still a reasonable timeframe, but power users may notice the difference.
Who should buy the WD_BLACK SN7100?
Get it if you want a drive that balances speed and efficiency in a laptop or handheld. It is also a smart pick for console storage if you want a cooler-running, power-efficient option.
It is especially good for portable systems where heat and battery drain directly affect your experience during long sessions.
Who should skip it?
Skip it if you want the longest warranty or the largest capacity range. The SN850X and Samsung 990 PRO offer more peace of mind and bigger top-end capacities.
You may also skip it if you prefer a drive with a longer track record, since the SN7100 is newer and has fewer long-term user reports than established flagships.
5. Kingston NV3 1TB – Best Budget PCIe 4.0 SSD
Kingston NV3 1TB M.2 2280 NVMe SSD | PCIe 4.0 Gen 4×4 | Up to 6000 MB/s | SNV3S/1000G
Read: 6000 MB/s
Write: 4000 MB/s
M.2 2280
3-year warranty
Pros
- Excellent entry-level Gen4 value
- Reliable Kingston brand
- Shock resistant
- Capacities up to 4TB
- Low power consumption
Cons
- Slower write than flagships
- 3-year warranty
- No bundled cloning software
The Kingston NV3 is proof that you do not need flagship speeds to get a meaningful upgrade. At up to 6,000 MB/s read it is still roughly ten times faster than a SATA SSD, and it costs far less than the top Gen4 drives.
Kingston is a brand I trust for friends-and-family builds because the drives tend to just work. The shock-resistant design and low power draw are small details that add up in everyday laptops.
It comes in capacities up to 4TB, which is unusual for a budget line. If you need a lot of storage for media or a growing game library, the NV3 makes that affordable without leaving the Gen4 interface.
The write speed is capped at 4,000 MB/s, which is fine for gaming and general use but can slow down large file copies compared with faster drives. For a boot drive or Steam library it is rarely an issue.
It is not Prime eligible, and there is no bundled cloning software. You will need your own migration tool, though Windows and free apps like Macrium Reflect handle that easily.
The 3-year warranty is acceptable for a budget drive, though competitors like Crucial and Samsung offer longer coverage. That is one of the trade-offs that keeps the price down.
Who should buy the Kingston NV3?
Buy it if you want the best PCIe 4.0 SSDs entry point that does not strain your budget. It is ideal for a secondary game drive, a family PC, or any system moving up from SATA.
It is also a sensible pick if you want a large-capacity drive for backups and media without paying flagship prices.
Who should skip it?
Skip it if your workload involves constant large writes or professional content creation. The NV3 is a great budget drive, but it is not designed to compete with workstation-class SSDs.
You may also skip it if you want the longest warranty or the convenience of bundled migration software.
6. Acer Predator GM7000 2TB – Best PS5 SSD with DRAM
Predator M.2 SSD 2TB GM7000 with DRAM cache NVMe 1.4 2280 PCIe Gen4×4 Ultra high speed (maximum read: 7400MB/s, max write: 6700MB/s) 3D NAND TLC Internal SSD Compatible with PS5 Pro – BL.9BWWR.106
Read: 7400 MB/s
Write: 6700 MB/s
M.2 2280
5-year warranty
Pros
- Up to 7400 MB/s read
- 2GB DRAM cache
- Custom heat spreader included
- PS5 compatible
- 5-year warranty up to 1300 TBW
Cons
- Can run hot under heavy use
- Smaller review base than Samsung or WD
The Acer Predator GM7000 is a hidden gem for PS5 owners and desktop builders who want a DRAM-equipped drive. Acer quotes up to 7,400 MB/s read and 6,700 MB/s write, and the included heat spreader is a real bonus.
The 2GB DRAM cache helps keep random access consistent, which is useful when the drive is packed with games. On PS5 that translates to near-instant game switching and fast patch installs.
It is officially compatible with PlayStation 5 and fits the standard M.2 2280 slot. The custom heat spreader is thin enough to clear the PS5’s expansion bay cover without forcing anything.
Heat is the main concern with this drive. The heat spreader helps, but long sustained loads can still push temperatures up. Make sure your console or PC has decent airflow around the M.2 slot.
The review count is lower than the Samsung or WD drives, but the 5-year warranty and 1,300 TBW rating on the 2TB model are competitive. Those endurance numbers matter if you install and delete large games frequently.
Biwin Intelligence software is included for drive health monitoring and firmware updates. It is not as polished as Samsung Magician, but it covers the basics without getting in the way.
Who should buy the Acer Predator GM7000?
Buy it if you want a DRAM-equipped pick for PS5 with an included heat spreader. It is also a strong option for a desktop gaming build where you want consistent performance even when the drive is nearly full.
The 5-year warranty makes it appealing for users who plan to keep their drive through multiple system upgrades.
Who should skip it?
Skip it if you want the deepest track record or the lowest price. The GM7000 is competitive, but the Acer brand has fewer long-term user reports than Samsung or WD.
You may also skip it if your case or console has very limited airflow, since this drive benefits from active cooling under heavy loads.
7. XPG GAMMIX S70 BLADE 2TB – Best with Heatsink
XPG GAMMIX S70 Blade, PCIe Gen4 Solid State Drive, 2TB
Read: 7400 MB/s
Write: 6800 MB/s
M.2 2280
5-year warranty
Pros
- Excellent 7400/6800 MB/s speeds
- Aluminum heatsink included
- SLC cache technology
- E2E data protection
- PS5 compatible
Cons
- Runs hot under sustained heavy writes
- ADATA toolkit has compatibility issues
XPG’s GAMMIX S70 Blade has been around long enough to earn a real reputation, and it remains one of the most reliable best PCIe 4.0 SSDs with an included heatsink. The 7,400 MB/s read and 6,800 MB/s write ratings put it right at the top of the Gen4 class.
The aluminum heatsink is more than cosmetic. Several long-term owners report four or more years of trouble-free use, and the cooler helps maintain speed during heavy gaming sessions.
It uses an Innogrit ig5236 controller and SLC caching to keep burst performance high. For open-world games that stream assets constantly, that smoothness matters more than peak benchmark numbers.
End-to-end data protection is a nice touch for anyone storing important projects. It is not a substitute for backups, but it adds a layer of confidence for creative work and large file transfers.
The ADATA toolkit software can be finicky on some systems. I would install it only if you need firmware updates; otherwise, Windows’ own storage tools are enough for everyday monitoring.
Like many fast Gen4 drives, it can run hot under sustained heavy writes. The included heatsink handles normal gaming well, but professional workloads may need extra airflow or a larger aftermarket cooler.
Who should buy the XPG GAMMIX S70 Blade?
Buy it if you want a drive that includes a quality heatsink and has a proven long-term track record. It is a safe pick for PS5 and high-end PC builds where you want a single purchase that includes cooling.
It is also a good choice if you like having community feedback to lean on, since thousands of owners have used this model for years.
Who should skip it?
Skip it if you prefer first-party software or a drive that runs cooler under constant writes. The Samsung 990 PRO or WD SN850X are better fits for those priorities.
You may also skip it if you already have a motherboard heatsink, since the included cooler may not be necessary and could create a fit issue in tight slots.
8. BIWIN Black Opal NV7400 1TB – Best High-Speed Budget SSD
BIWIN Black Opal NV7400 1TB SSD Gen4x4, Read Speed up to 7450MB/s, NVMe M.2 2280 PCIe 4.0 Internal PC Solid State Drive for Laptop/Desktop/PS5
Read: 7450 MB/s
Write: 6500 MB/s
M.2 2280
5-year warranty
Pros
- 7450 MB/s read speed
- Graphene aluminum heatsink
- HMB and Smart Cache
- PMIC power efficiency
- 5-year warranty
Cons
- Lower write speed than fastest drives
- Smaller review base
BIWIN is not as well known as Samsung or WD, but the Black Opal NV7400 delivers the same headline read speed as the 990 PRO at a lower cost. The rated 7,450 MB/s read and 6,500 MB/s write are impressive for the price tier.
The 0.5mm graphene aluminum heat sink does a good job keeping temperatures in check without adding bulk. That matters in compact cases and consoles where every millimeter of clearance counts.
It uses HMB and Smart Cache to maintain performance without a dedicated DRAM chip. In practice, game load times are excellent and the drive feels responsive as a boot drive.
PMIC power management helps keep power draw reasonable, which is why I would consider this for a laptop or portable gaming device. The 5-year warranty is also longer than some drives that cost more.
The review base is smaller, which means less long-term reliability data. Still, early reviews are strong and the specs line up with established controller and NAND combinations.
It is PS5 compatible and available in 1TB, 2TB, and 4TB capacities. For a high-speed value pick, the NV7400 deserves attention from anyone shopping the best PCIe 4.0 SSDs on a budget.
Who should buy the BIWIN Black Opal NV7400?
Buy it if you want near-flagship read speeds without the flagship price. It is a smart upgrade for a gaming PC or PS5 where budget matters but you still want top-tier load performance.
It is also appealing if you want a thin heatsink included, since the graphene cooler adds little height and fits most systems easily.
Who should skip it?
Skip it if you want the most established brand or the absolute fastest sustained writes. The Samsung 990 PRO and XPG S70 Blade are safer choices for those needs.
You may also skip it if having a massive review base is important to you, since BIWIN is still building its long-term reputation in this category.
9. Acer Predator GM7 1TB – Best DRAM-less Gaming SSD
Acer Predator GM7 1TB SSD: M.2 2280 PCIe Gen 4 x4 NVMe 2.0, Read Speed Up to 7400 MB/s, Internal PC Solid State Drive for Laptop, Desktop and PS5 – BL.9BWWR.118
Read: 7400 MB/s
Write: 6500 MB/s
M.2 2280
5-year warranty
Pros
- 7400 MB/s read
- HMB and SLC cache
- Thermal throttling tech
- Low power consumption
- PS5 compatible
Cons
- Smaller review base
- Lightweight design may worry some users
The Acer Predator GM7 proves that a DRAM-less drive can still compete with flagship models for gaming. Acer rates it at 7,400 MB/s read and 6,500 MB/s write, and it uses HMB plus SLC cache to keep things snappy.
Thermal throttling and power management are built in, so the drive slows itself down before it gets dangerously hot. That is a good safety net for small cases and consoles with limited airflow.
It is PS5 compatible and works in desktops and laptops. The 1TB size is a sweet spot for a boot drive plus a handful of large modern games.
HMB performance is close enough to DRAM for most users that you will not notice the difference in games. The main place you might see it is in very heavy, sustained write workloads like multi-stream video editing.
Biwin Intelligence software handles monitoring and updates. It is basic but functional, and most users will not need to open it often after the initial setup.
The review count is lower than the big brands, so long-term reliability is less proven. Still, early feedback is positive, with many users praising the speed and cool operation.
Who should buy the Acer Predator GM7?
Buy it if you want a gaming-focused pick that skips the DRAM chip to save money without sacrificing game load performance. It is a practical upgrade for a desktop or PS5 where read speed matters most.
It is also a good fit if you want thermal protection built in and prefer a drive that manages itself without manual tuning.
Who should skip it?
Skip it if you run a workstation with constant heavy writes or if you prefer a brand with years of user history. The Samsung 990 PRO or WD SN850X are better for those scenarios.
You may also skip it if you want DRAM cache specifically, since the GM7000 from the same brand offers that feature for a modest premium.
10. fanxiang S880E 2TB – Best Budget 2TB SSD
fanxiang 2TB NVMe SSD PCIe Gen 4 Gaming SSD for PS5, Up to 7100MB/s M.2 2280 SSD Compatible with PS5 Storage Expansion, Internal Solid State Drive for Gamers, Professionals, Creators S880E
Read: 7100 MB/s
Write: 5300 MB/s
M.2 2280
5-year warranty
Pros
- 2TB capacity value
- 7100 MB/s read
- PS5 compatible
- Graphite copper thermal sticker
- DirectStorage support
Cons
- Write speed lower than peers
- May need extra heatsink under heavy use
- Smaller review base
The fanxiang S880E gives you 2TB of PCIe 4.0 storage without the premium tax. Its 7,100 MB/s read speed is more than enough for modern games, and the 2TB capacity handles even the largest game libraries.
It is marketed for PS5 and includes DirectStorage support, which could matter as more games start using that API in 2026. The graphite-coated copper foil thermal sticker is a thoughtful touch at this price.
Fanxiang offers a 5-year warranty and lifetime technical support, which is unusual for a budget-focused brand. That alone makes it worth considering if you need a lot of space and want some protection.
The write speed is 5,300 MB/s, which is slower than the top drives but still fine for game installs and everyday file copies. Heavy sustained writes will slow further, so video editors should look elsewhere.
Some owners recommend adding a small heatsink if the drive will live in a hot case or PS5 without good airflow. The included thermal sticker helps, but it is not a full heatsink.
It is relatively new, so the review count is lower than established competitors. Still, the early ratings are strong and the capacity-per-dollar ratio is hard to ignore among the best PCIe 4.0 SSDs.
Who should buy the fanxiang S880E?
Buy it if you want a 2TB pick with lots of capacity for the money. It is a practical choice for PS5 expansion or a secondary game drive where read speed is the priority.
It is also good if you want a 5-year warranty from a budget brand, since that coverage is better than many cheaper alternatives offer.
Who should skip it?
Skip it if you need the fastest write speeds or a brand with a long track record. The S880E is about value, not breaking speed records.
You may also skip it if your system runs hot, since this drive benefits from an added heatsink under sustained heavy use.
How to Choose the Best PCIe 4.0 SSD?
Picking the right drive comes down to matching specs to your actual workload. Here is exactly what I look at before installing a new M.2 SSD.
The biggest mistake people make is chasing peak sequential speed while ignoring form factor, thermals, and endurance. The sections below cover the details that actually affect daily use.
M.2 form factor and slot compatibility
Most drives in this guide are M.2 2280, which means 22mm wide and 80mm long. That is the standard size for desktop motherboards and the PS5 expansion slot.
Laptops, handhelds, and compact systems may use shorter 2230 or 2242 sizes. Always check your device’s manual before ordering, because a 2280 drive will not fit a 2230-only slot.
Some handhelds accept a 2280 drive with an adapter, but that adds complexity. If you own a Steam Deck, ROG Ally, or MSI Claw, verify the exact slot length before buying.
TLC vs QLC NAND
TLC NAND stores three bits per cell and generally offers better endurance and sustained performance. Most of the recommended drives in this guide use TLC, which is why they stay fast under pressure.
QLC NAND stores four bits per cell and is cheaper, but it can slow down dramatically after the SLC cache fills. I avoid QLC for primary boot drives and recommend it only for secondary storage where speed is less sensitive.
If the product listing does not clearly state TLC or QLC, check the manufacturer’s spec page. The drives on this list are all TLC-based, which keeps quality consistent.
DRAM cache vs HMB
A dedicated DRAM cache maps the drive’s data locations, which improves consistency when the drive is full or under heavy random access. Drives like the Samsung 990 PRO and WD SN850X include DRAM.
Host Memory Buffer, or HMB, borrows a small amount of system RAM instead. It is cheaper and works well for gaming, though DRAM still wins for heavy workstation use.
For most gamers and general users, HMB is perfectly fine. If you edit video, run databases, or keep your drive nearly full, spend a little more for DRAM.
Console compatibility
The PS5 requires a PCIe 4.0 NVMe drive with at least 5,500 MB/s sequential read speed. Every drive in this guide exceeds that minimum, but some include heatsinks that fit the PS5 bay better than others.
Handheld devices like the Steam Deck and ROG Ally often need shorter 2230-length drives, though some accept 2280 with an adapter. Check your specific model before ordering.
For PS5, I prefer drives with an included heatsink or a thin thermal pad. The console’s bay has limited clearance, so tall coolers may not fit under the cover.
TBW and warranty
TBW stands for Terabytes Written, which estimates how much data the drive can handle before wear becomes a concern. A 2TB drive with a 1,200 TBW rating will last most users many years of normal use.
Warranty length matters too. Five years is common on mid-range and premium drives, while budget options may offer three years.
I treat TBW as a safety guideline rather than a countdown timer. Most users will replace their system long before they hit the TBW limit on a quality TLC drive.
Do you need a heatsink?
A heatsink helps maintain sustained performance, especially in a PS5 or a case with poor airflow. Many modern motherboards include an M.2 heatsink already.
For light use, a bare drive is fine. For gaming and content creation, I recommend using whatever cooling your system can provide.
If you buy a drive with a pre-installed heatsink, make sure it clears any motherboard armor or PS5 cover. Thin graphene pads and spreaders are usually the safest fit for tight spaces.
Frequently Asked Questions
What is the best PCIe 4.0 SSD?
The Samsung 990 PRO is the best PCIe 4.0 SSD overall, with sequential read speeds up to 7,450 MB/s, a 55% random performance improvement over the 980 PRO, and official PS5 compatibility.
What is the best cheap PCIe 4.0 SSD?
The Kingston NV3 is the best cheap PCIe 4.0 SSD. It reaches 6,000 MB/s read, offers capacities up to 4TB, and delivers a noticeable upgrade over SATA and older Gen3 drives at a lower price than flagship models.
What is the best PCIe 4.0 SSD for a gaming console?
For PS5, the Acer Predator GM7000 is excellent thanks to its DRAM cache and included heat spreader. For handheld consoles like the Steam Deck and ROG Ally, the Crucial P310 is the top choice because it is specifically listed as compatible.
What is the best brand for a PCIe 4.0 SSD?
Samsung, WD, and Crucial are the most trusted brands for PCIe 4.0 SSDs based on long-term reliability data and large review bases. Kingston, XPG, and Acer also offer strong options, with Samsung and WD leading on flagship performance and warranty support.
Are SSDs good for long-term storage?
SSDs are good for long-term storage if they are powered on periodically, because flash cells slowly lose charge when left unpowered for very long periods. For cold archival storage lasting many years without power, an external hard drive or cloud backup is safer.
Final Thoughts on the Best PCIe 4.0 SSDs
The Samsung 990 PRO remains my top overall pick thanks to its 7,450 MB/s read speed, strong random performance, and proven reliability. The Crucial P310 is the best value choice for handhelds and mainstream desktops, while the Kingston NV3 is the budget pick that still delivers a real upgrade.
For PS5 owners, the Acer Predator GM7000 and WD_BLACK SN7100 stand out for their console-friendly cooling and compatibility. If you want a proven heatsink included, the XPG GAMMIX S70 Blade is hard to beat.
Whatever you choose from this list of the best PCIe 4.0 SSDs in 2026, you will get a drive that meaningfully outperforms older SATA and Gen3 storage. Match the drive to your system, check your slot size, and enjoy the faster load times.