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Head-to-head · Best PCIe Gen5 NVMe SSDs

Crucial T705 vs Seagate FireCuda 540

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 comes out ahead by a narrow margin (4.5 vs 4.2). The gap is mostly about enthusiasts who prioritize synthetic benchmark performance — read the strengths below before deciding.

Crucial T705
Higher ratedRanked #1 in Best PCIe Gen5 NVMe SSDs
Crucial T705
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 AmazonFull review →
Seagate FireCuda 540
Ranked #4 in Best PCIe Gen5 NVMe SSDs
Seagate FireCuda 540
3 sources1 derived$399as of Aug 1

Instead of chasing peak speed like the rest of this group, the Seagate FireCuda 540 competes on durability and peace of mind. Tom's Hardware said the drive 'sets itself apart with an excellent warranty,' and its specification table puts the 2TB model at 2,000TB written on a five-year term with a three-year Seagate Rescue subscription — a service no rival here offers, and one the same review called 'an excellent addition that sets it apart from the MP700.' Peak speeds of around 10,000 MB/s trail the WD Black SN8100 and Crucial T705, but PCWorld found that 'though it's not the fastest PCIe 5.0 SSD we've seen with synthetic benchmarks, the FireCuda 540 blazed to a first-place finish in our real world 48GB transfers.' The drawbacks are familiar: it runs hot, needs a heatsink, and is priced like a flagship despite not being the fastest.

Strengths
  • — Class-leading endurance: rated up to 2,000 TBW on the 2TB model, well above the ~1,200 TBW of rival Gen5 drives
  • — Bundled three-year Seagate Rescue data-recovery service, unique in this group
  • — First-place finish in PCWorld's real-world 48GB transfer test despite lower peak synthetic numbers
Watch-outs
  • — Peak sequential speeds of ~10,000 MB/s trail the 14,000+ MB/s WD Black SN8100 and Crucial T705
  • — Bare drive throttles without a heatsink; needs motherboard or aftermarket M.2 cooling
  • — Poor power efficiency compared to the SM2508-based WD Black SN8100
$399 · Buy at newegg.comFull 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.

Seagate FireCuda 540

The Seagate FireCuda 540 is the endurance-and-safety pick of this group: its ~2,000 TBW rating on the 2TB model tops the ~1,200 TBW of the WD Black SN8100, Samsung 9100 PRO, and Crucial T705, and it is the only drive here with a bundled data-recovery service. It uses the same Phison controller as the Corsair MP700 Pro SE and Crucial T705, so it runs hot and trails the WD Black SN8100's efficiency, and its ~10,000 MB/s peak speeds are slower than every other drive in this lineup. Choose it over the faster WD Black SN8100 or Crucial T705 specifically when long-term endurance and the Rescue recovery service matter more than peak benchmarks.

Specs side-by-side

SpecCrucial T705Seagate FireCuda 540
InterfacePCIe 5.0 x4PCIe 5.0 x4 (NVMe 2.0)
Form Factor2280M.2 2280
NAND Type232-layer TLCMicron 232-layer TLC
DRAM Cache1GB DDR4—
Capacity1TB, 2TB, 4TB—
ControllerPhison PS5026-E26Phison PS5026-E26
Warranty5 years5 years + 3-year Rescue service
Sequential Read—Up to 10,000 MB/s
Endurance—Up to 2,000 TBW (2TB)
Capacities—1TB, 2TB, 4TB
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