Head-to-head · Best PCIe Gen5 NVMe SSDs

Crucial T705 vs WD Black SN8100

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

WD Black SN8100 comes out ahead by a narrow margin (4.5 vs 4.7). The gap is mostly about Buyers who want the fastest, coolest-running Gen5 drive without a bulky heatsink — read the strengths below before deciding.

Ranked #2 in Best PCIe Gen5 NVMe SSDs

Crucial T705

4.5

$269.99as of Jun 7

The Crucial T705 delivers exceptional PCIe 5.0 performance with sequential read speeds up to 14.5GBps, outpacing competitors in synthetic benchmarks. PCWorld's Jon Jacobi noted its 'blazingly fast benchmarking' and 'very good overall performance,' though he emphasized the 'extremely pricey' nature of the drive. While PCMag's Tony Hoffman called it 'the fastest PCIe 5.0 SSD yet,' reviewers acknowledged that real-world performance gains may not justify the premium for most users. The T705 is best suited for enthusiasts and professionals seeking maximum performance, while casual users may find more value in older-generation SSDs.

Strengths

— Blazingly fast benchmarking with 14.5GBps sequential read speeds
— Uses latest Phison PS5026-E26 controller and 232-layer TLC NAND
— Very good overall performance in synthetic tests

Watch-outs

— Extremely pricey at $240 for 1TB, $400 for 2TB, $690 for 4TB
— Windows transfers are only average despite high benchmark scores
— Premium pricing may not justify performance gains for typical users

$269.99 · Check Price on Amazon Full review →

Higher ratedRanked #1 in Best PCIe Gen5 NVMe SSDs

WD Black SN8100

4.7

$439.99as of Jun 7

The WD Black SN8100 (made by SanDisk) is the new performance benchmark for consumer PCIe 5.0 SSDs. Tom's Hardware called it 'the fastest overall consumer SSD ever made,' and StorageReview measured it topping sequential charts at up to 15 GB/s reads and 14.1 GB/s writes, 'edging out even the Crucial T705 and Samsung 9100 Pro.' Its standout trait is efficiency: the Silicon Motion SM2508 controller on a 6nm process draws far less power than the Phison E26 silicon in most rivals, so DongKnows (8.5/10) found it 'never became hotter than 85C, much less hot than the heatsink version of the Crucial T705.' Pair that with record PCMark 10 scores and a 5-year, 1,200 TBW warranty and it is the most complete drive in this group. The catches are premium, volatile pricing and the need to supply your own cooling.

Strengths

— Fastest consumer SSD tested: up to 14,900 MB/s sequential reads and ~2.3M random read IOPS edge out the Crucial T705 and Samsung 9100 PRO
— Best-in-class power efficiency, drawing only 6.5W on reads, so it runs cooler than rival Phison E26 drives
— Silicon Motion SM2508 controller on a TSMC 6nm process avoids the heat problems that plague E26-based Gen5 SSDs

Watch-outs

— Premium pricing that has been volatile during the 2026 NAND shortage
— Sold as a bare drive, so you still need motherboard or aftermarket M.2 cooling for sustained loads
— Gen5 speeds are overkill for gaming, where the gap over a good Gen4 drive is negligible

$439.99 · Check Price on Amazon Full review →

How they stack up

Crucial T705

The Crucial T705 posts the highest synthetic sequential speeds among the Phison-controller drives at up to 14.5 GB/s, narrowly ahead of the Corsair MP700 Pro SE, but its real-world Windows transfers are only average and it shares the Phison controller's heat, running hotter than the WD Black SN8100. It is cheaper than the Corsair MP700 Pro SE and lacks the Samsung 9100 PRO's 1GB-per-TB DRAM and the Seagate FireCuda 540's data-recovery warranty. Choose it over the Corsair MP700 Pro SE for the best benchmark numbers at a lower price; choose the WD Black SN8100 for better efficiency and real-world performance.

WD Black SN8100

The WD Black SN8100 is the fastest drive in this group, beating the Crucial T705 and Samsung 9100 PRO in sequential throughput while drawing dramatically less power, so it runs cooler than the Corsair MP700 Pro SE and Crucial T705 without a fan. It uses a newer Silicon Motion controller, where the Corsair MP700 Pro SE, Crucial T705, and Seagate FireCuda 540 all share the same hotter Phison controller. It trades the Samsung 9100 PRO's 1GB-per-TB DRAM and Samsung's Magician ecosystem for higher peak speed and efficiency. Choose it over the Seagate FireCuda 540 if outright speed and thermals matter more than the FireCuda's data-recovery warranty.

Specs side-by-side

Spec	Crucial T705	WD Black SN8100
Interface	PCIe 5.0 x4	PCIe 5.0 x4 (NVMe 2.0)
Form Factor	2280	M.2 2280
NAND Type	232-layer TLC	SanDisk BiCS8 TLC 3D
DRAM Cache	1GB DDR4	—
Capacity	1TB, 2TB, 4TB	—
Controller	Phison PS5026-E26	Silicon Motion SM2508 (6nm)
Warranty	5 years	5 years / 1,200 TBW (2TB)
Sequential Read	—	Up to 14,900 MB/s
Sequential Write	—	Up to 14,000 MB/s
Capacities	—	1TB, 2TB, 4TB

← See the full ranking of best pcie gen5 nvme ssds