Updated · Researched and written by Elan Harpaz · How we pick
We may earn a commission from links on this page, at no extra cost to you. Disclosure
For most people the best nvme ssd is the WD_BLACK SN850X 2TB, $379 when we checked it on 2026-08-24. A main gaming drive in a motherboard that already has an M.2 heatsink.
Researched, not tested: we have not handled these products. Verdicts come from published specs, owner reviews read at volume, and our own weekly price record. No paid placements, and commissions never change our rankings.
A faster SSD will not lift your frame rate, but it changes how a system feels: levels stream in, project files open, and a PS5 stops asking you to delete something. The problem with the category is that drives which look identical on a spec sheet behave nothing alike once you push them past the first few gigabytes.
We held every pick at 2TB so the comparison is like for like, then separated them on the things that decide sustained speed. What separated them:
Best for: A main gaming drive in a motherboard that already has an M.2 heatsink.
We changed the premium pick in August 2026. It used to be the same WD_BLACK SN850X with a heatsink attached, which is not a second recommendation, it is the same drive with a bracket. That listing is also out of stock now. The Samsung 990 PRO replaces it as a genuinely different drive from a different maker with a different controller.
The honest framing for this whole category: the jump from SATA to any NVMe drive is large and obvious. The jump between good NVMe drives is small, and shows up in sustained writes and in how a drive behaves when it is hot, not in how fast a game loads. If you already own a Gen4 drive with DRAM, none of these will feel different.
The SN850X is the pick for most PCs, because current motherboards almost all ship an M.2 heatsink and you should not pay for a second one. The 990 PRO is the alternative if you want Samsung's controller and firmware track record. The Silicon Power is Gen3 with no DRAM cache, which is why it belongs as bulk game storage rather than as a boot drive.
One thing this guide does not cover: a PS5 needs a heatsink and none of these three include one, so budget a cheap aftermarket M.2 heatsink alongside whichever you buy.
Basis: interface generation, DRAM configuration and rated endurance from the manufacturers, plus owner reviews. Ratings score each product on the merits with price left out, so the premium pick always sits highest. The tier tells you where a pick sits on price, not how good it is.
NVMe drives are fast enough now that headline speed is rarely the thing that matters:
Match the drive to the job: DRAM for the OS and main games, cheap capacity for bulk storage.
2TB of TLC NAND at Gen3 speeds. No DRAM cache, which is exactly why it is cheap and exactly why it is not a boot drive.
$239.97 observed
Check price on Amazon
Full Gen4 speed with a 2GB DRAM cache, and no built-in heatsink duplicating the one your board already has.
Currently unavailable
The other end of the Gen4 field: 7,450 MB/s rated read, DRAM cache, and Samsung Magician for firmware and health monitoring.
$389.99 observed
Check price on Amazon| Pick | Tier | Price, and when observed | Our rating | Best for |
|---|---|---|---|---|
| Silicon Power 2TB NVMe M.2 PCIe Gen3x4 2280 SSD Solid State Drive (SP002TBP34A60M28) | Budget Pick | $239.97 on 2026-08-31 | 7.6 / 10 | A second drive for a game library, where capacity per dollar beats speed. |
| WD_BLACK SN850X 2TB NVMe SSD - M.2 2280 | Best Value | $379.00 on 2026-08-24 | 8.9 / 10 | A main gaming drive in a motherboard that already has an M.2 heatsink. |
| Samsung 990 PRO SSD 2TB NVMe M.2 PCIe Gen4 | Premium Pick | $389.99 on 2026-08-31 | 9.2 / 10 | A main drive for someone who wants Samsung's controller, firmware and monitoring tools. |
$239.97
Best for: A second drive for a game library, where capacity per dollar beats speed.
This is the drive you buy when what you want is capacity, not speed. It uses TLC NAND rather than the slower QLC that turns up on a lot of budget drives, which matters because QLC drives fall further and recover more slowly once their cache is exhausted.
Day to day it does the job. Windows boots quickly, games load at a speed you would not distinguish from a Gen4 drive without a stopwatch, and large copies run fast until the SLC write cache fills. That is the moment the compromise appears: without a DRAM cache the drive falls back on borrowing system memory, and sustained write speed drops noticeably and stays down until the drive catches up.
The other limits follow from Gen3. Rated at roughly 2,200 MB/s read, it is roughly a third of the peak the two Gen4 drives here quote, and it is not a drive to put in a PS5 where Sony specifies a higher minimum. On the positive side it runs cool and draws little power, which makes it a reasonable laptop or small-form-factor drive where the Gen4 options need airflow.
| Capacity | 2TB |
| Interface | PCIe Gen3 x4 (NVMe) |
| Form factor | M.2 2280 |
| Sequential read | Up to 2,200 MB/s (manufacturer figure) |
| Sequential write | Up to 1,600 MB/s (manufacturer figure) |
| NAND | TLC |
| DRAM cache | No (host memory buffer) |
| Heatsink | No |
| Warranty | 5 years |
Currently unavailable
Best for: A main gaming drive in a motherboard that already has an M.2 heatsink.
The SN850X is the drive most PC builds should get, and the bare version is the right way to own it. WD rates it at 7,300 MB/s read and 6,600 MB/s write, but the number that actually matters is the 2GB of dedicated DDR4 DRAM: it keeps the mapping tables in the drive rather than in system memory, so random performance and sustained writes hold up when you hammer it.
That is what you feel. Levels stream without hitching, large project files open immediately, and copying a hundred gigabytes does not turn into a slideshow halfway through. WD's controller has been in the field long enough that its firmware behavior is well documented.
Heat is the thing to plan for. Without a heatsink the controller runs warm under sustained writes and will throttle to protect itself, so this drive assumes there is a heatsink on the motherboard M.2 slot. Most current boards ship one; if yours does not, add a cheap aftermarket one rather than paying for WD's bundled version. A PS5 needs one too, and this listing does not include it. The drive also draws more power than the Gen3 pick, which is worth knowing in a thin laptop.
| Capacity | 2TB |
| Interface | PCIe Gen4 x4 (NVMe) |
| Form factor | M.2 2280 |
| Sequential read | Up to 7,300 MB/s (manufacturer figure) |
| Sequential write | Up to 6,600 MB/s (manufacturer figure) |
| DRAM cache | Yes (2GB DDR4) |
| Heatsink | No |
| Endurance | 1,200 TBW |
| Warranty | 5 years |
Best for: A main drive for someone who wants Samsung's controller, firmware and monitoring tools.
The 990 PRO is the alternative to the SN850X rather than an upgrade over it, and choosing between them is mostly about whose controller and software you want. Samsung rates it at 7,450 MB/s read and 6,900 MB/s write on its own Elpis controller with a dedicated DRAM cache, which puts it at the top of the Gen4 field on paper.
Where Samsung genuinely differentiates is the ownership tooling. Magician handles firmware updates, health and endurance monitoring, secure erase and over-provisioning from one application, and Samsung has a longer record of shipping firmware updates for drives already in the field than most competitors. For a drive holding your OS, that matters more than a few hundred MB/s.
The practical notes are the same as the WD. There is no heatsink on this listing, so a motherboard heatsink or an aftermarket one is assumed, and a PS5 needs one. Samsung sells a heatsink variant separately, which is the version to buy for a console. And the honest limit is the same as the whole category: against the SN850X in this guide, the difference is a specification rather than something you will notice in use.
| Capacity | 2TB |
| Interface | PCIe Gen4 x4 (NVMe) |
| Form factor | M.2 2280 |
| Sequential read | Up to 7,450 MB/s (manufacturer figure) |
| Sequential write | Up to 6,900 MB/s (manufacturer figure) |
| Controller | Samsung Elpis |
| DRAM cache | Yes |
| Heatsink | No (separate variant available) |
| Endurance | 1,200 TBW |
No, in any measurable way. SSD speed affects load times and how responsive a system feels, not frame rate. The large win is moving off a hard drive or SATA SSD onto NVMe. Gen3 to Gen4 is a much smaller step, and mostly visible in sustained file transfers rather than in games.
Gen4 roughly triples the peak sequential figure, but game load times barely move because loading is not a sequential-throughput problem. Buy Gen4 for a main drive because the DRAM cache and controller that come with it matter. Gen3 is genuinely fine for a second drive holding a game library.
On a PC, only if your motherboard lacks an M.2 heatsink, and most current boards include one. On a PS5 a heatsink is required, and none of the three drives here includes one, so budget for a cheap aftermarket heatsink or buy a heatsink variant.
The drive has no memory of its own for the mapping tables, so it borrows system memory instead. That is fine for reading and for light writing, and it is why the budget Silicon Power drive slows sharply on sustained writes and under heavy multitasking. The two Gen4 picks both have dedicated DRAM.
Either Gen4 drive, with a heatsink added. Both the SN850X and the 990 PRO exceed Sony's recommended throughput, and both need a heatsink that these listings do not include. The Gen3 Silicon Power drive falls below Sony's specification and is not suitable.
We may earn a commission from qualifying purchases made through links on this page, at no extra cost to you. We only recommend products we would tell a friend to buy, and commissions never change our picks.