Samsung 9100 PRO review

Capacity & Memory

I’d start with 2TB for a main PC drive unless you already know you need more. The 1TB version suits a smaller collection of apps and games; 4TB gives a large library or ongoing media projects more breathing room. The 8TB option is particularly useful when your computer has few available M.2 slots and you want to keep a lot of working material close at hand.

DRAM rises with capacity: 1TB gets 1GB, 2TB gets 2GB, 4TB gets 4GB and 8TB gets 8GB. This is memory used by the SSD, separate from your computer’s system RAM. Choose the capacity for the files you expect to keep, rather than treating the larger DRAM figure as a reason to buy more storage.

Transfer Performance

The 1TB version is rated for sequential reads and writes up to 14,700/13,300 MB/s; 2TB raises the write figure to 13,400 MB/s. The 4TB and 8TB versions reach 14,800/13,400 MB/s. These are Samsung’s peak ratings, shared by the standard and heatsink versions at each capacity. The small differences between capacities should not decide your purchase.

Compared with the 990 PRO’s maximum 7,450/6,900 MB/s ratings, that is a substantial increase in potential transfer speed. A suitable PCIe 5.0 slot gives large files room to move faster, but the source drive, destination and workload still matter. Copying from a slower external drive will not suddenly become a 14 GB/s transfer.

Tom’s Hardware found the 4TB model competitive in its 50GB mixed-file transfer test and particularly strong in its application-based PCMark 10 test.¹ That supports its appeal as a capable working drive, without implying that every save or file copy will approach the headline speed.

Long writes tell a different story. In Tom’s Hardware’s 15-minute sequential-write test, the 2TB drive fell from around 12.9 GB/s in its fast cache to just under 1.9 GB/s afterward.³ Its separately tested 8TB sample sustained over 12.6 GB/s for roughly 2TiB of writes before settling around 1.7 GB/s.⁴ Those results belong to those samples and conditions; available cache also changes as the drive fills. If you regularly write enormous batches, look beyond the peak rating.

Gaming & Everyday Use

Those random-performance figures describe a heavily queued manufacturer test, not the pace of opening one app. They are useful specifications, but a higher number does not translate directly into the same improvement in everyday responsiveness.

PC Gamer’s 2TB heatsink sample delivered very high sequential speeds but did not lead its game-loading test.² For browsing, office work and a few evening games, I would not replace a satisfactory 990 PRO just to move to PCIe 5.0. A capacity shortage or frequent large transfers is a much clearer reason to upgrade. New PC builders can still appreciate the 9100 PRO’s extra transfer headroom without expecting every loading screen to shrink dramatically.

Cooling & Compatibility

For a desktop with a suitable motherboard M.2 heatsink, the standard drive is the natural choice. Samsung’s integrated-heatsink version is convenient when you need cooling supplied with the SSD. Check the space around the slot before ordering, and choose one cooling arrangement rather than trying to stack both. Samsung says removing its factory heatsink voids the warranty.

The standard 1TB, 2TB and 4TB drives measure up to 80.15 × 22.15 × 2.38 mm; the 8TB increases to 3.88 mm thick. With Samsung’s heatsink, the footprint is 80.15 × 25 mm, with a height of 8.88 mm for 1–4TB and 11.25 mm for 8TB. That extra thickness matters in a cramped laptop. Check its service manual for M.2 2280 support, clearance and cooling provision rather than assuming any NVMe slot will do.

The power results also need context. Tom’s Hardware found the 2TB model efficient for a high-end SSD, but its desktop testing used active cooling.³ That is encouraging for a well-cooled PC, not proof of better laptop battery life or comfortable temperatures in every enclosure.

For PS5, Samsung’s heatsink versions offer a straightforward cooling option, including an 8TB model built to the console’s 11.25 mm height limit. A standard drive needs a suitable cooling assembly that fits Sony’s limits. Update the console’s system software before installation. The PS5 uses a PCIe 4.0 connection, so it cannot deliver the 9100 PRO’s full PCIe 5.0 advertised speeds. The same bandwidth limitation applies to a PCIe 4.0 PC slot.

Endurance & Software

Write-endurance ratings scale with capacity: 600TB written for 1TB, 1,200TB for 2TB, 2,400TB for 4TB and 4,800TB for 8TB. The warranty ends at five years or the applicable write limit, whichever comes first. These are warranty limits, not a prediction of when the drive will fail, and they do not replace a backup of important files.

Samsung Magician is a welcome part of ownership. On a supported PC, it lets you check drive health, see how much data has been written and check for firmware updates in one place. It is worth opening after installation to confirm the drive is recognized and review any available updates.

Alternatives

The Samsung 990 PRO remains a sensible alternative for a PCIe 4.0 computer or PS5, particularly when it costs less at the capacity you need. It tops out at 4TB, so it cannot provide the 9100 PRO’s 8TB capacity in one slot. For an existing 990 PRO owner who simply needs more space, adding another drive may be more useful than replacing the original.

For a new PCIe 5.0 build, compare the WD_BLACK SN8100 as well. Tom’s Hardware’s 8TB 9100 PRO review found the tested 2TB SN8100 ahead in random-read latency.⁴ That is a reason to check workload-specific results at your chosen capacity, rather than deciding from either drive’s largest advertised number.

Verdict

The 9100 PRO is an appealing upgrade when you have a clear job for its speed or capacity. I’d favor the standard version under a suitable motherboard heatsink, and choose Samsung’s heatsink when it simplifies installation. Buy enough room for your projects, check the fit, and let your workload decide whether PCIe 5.0 is worth paying for. A good existing SSD does not become inadequate just because a faster one arrives.