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.

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The short answer

Crucial T705 and WD Black SN8100 score essentially the same (4.5 vs 4.5). Pick the one whose trade-offs match your priorities — the strengths and watch-outs below are where they actually differ.

Ranked #1 in Best PCIe Gen5 NVMe SSDs

Crucial T705

4.5

11 sources$267.95as of Aug 1

Sequential reads up to 14.5GBps put the Crucial T705 ahead of its competitors in synthetic benchmarks. PCWorld's Jon Jacobi noted its 'blazingly fast benchmarking' and 'very good overall performance,' while stressing how 'extremely pricey' the drive is. PCMag's Tony Hoffman rated it five stars and called it 'the fastest internal solid-state drive (SSD) we've ever tested,' while noting it 'is priced higher than other PCIe 5 SSDs we've tested,' so the real-world gains may not justify the premium for most users. Enthusiasts and professionals chasing maximum performance are the fit; casual users will 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

$267.95 · Check Price on Amazon Full review →

Ranked #2 in Best PCIe Gen5 NVMe SSDs

WD Black SN8100

4.5

3 sources1 derived$399.99as of Aug 1

Consumer PCIe 5.0 has a new performance benchmark in the WD Black SN8100, made by SanDisk. 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.' Efficiency is what sets it apart: 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.' Add 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 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 flagship pricing, the only drawback Tom's Hardware listed against it
— 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

$399.99 · Check Price on Amazon Full review →

Derived means the reviewer published no score, so one was inferred from their written verdict. Everything else is a number the publisher printed. How we rank.

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

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