Western Digital
WD_BLACK SN850X 2 TB
PCIe 4.0 · 7300 MB/s · Heatsink option
90
/ 100
From $219
VS
Crucial T705 2TB wins by 3
Crucial
Crucial T705 2TB
PCIe 5.0 · 14,500/12,700 MB/s
93
/ 100
From $349
Specdex verdict
Crucial T705 2TB takes it — here’s why.
In our weighted Specdex score, WD_BLACK SN850X 2 TB lands at 90 and Crucial T705 2TB at 93. That puts Crucial T705 2TB ahead by 3 points — a narrow margin driven mostly by its strengths in the categories below.
Pick WD_BLACK SN850X 2 TB if…
- ✓Best PCIe 4.0 sustained speed under load
- ✓5-year warranty
- ✓Excellent gaming/load times
Pick Crucial T705 2TB if…
- ✓Fastest consumer NVMe
- ✓Great thermal design (heatsink version)
- ✓1200 TBW
WD_BLACK SN850X 2 TB 90
vs 93 Crucial T705 2TB
Score breakdown
WD_BLACK SN850X 2 TB
90 speed 92
endurance 92
software 86
value 88
reliability 96
read 0
write 0
Crucial T705 2TB
93 speed 0
endurance 92
software 0
value 82
reliability 0
read 99
write 97
Specs side-by-side
| Spec | WD_BLACK SN850X 2 TB | Crucial T705 2TB |
|---|---|---|
| Capacity | 1 / 2 / 4 / 8 TB | — |
| Interface | PCIe 4.0 x4 NVMe 1.4 | PCIe 5.0 x4 NVMe |
| Sequential read | 7300 MB/s | — |
| Sequential write | 6600 MB/s | — |
| NAND | BiCS5 TLC | — |
| Endurance | 1200 TBW (2TB) | — |
| Warranty | 5 years | — |
| Read speed | — | 14,500 MB/s |
| Write speed | — | 12,700 MB/s |
| TBW | — | 1200 |
WD_BLACK SN850X 2 TB
Pros
- +Best PCIe 4.0 sustained speed under load
- +5-year warranty
- +Excellent gaming/load times
Cons
- −PCIe 4.0 not 5.0
- −Game Mode 2.0 is software gimmick
- −Premium pricing per TB
Crucial T705 2TB
Pros
- +Fastest consumer NVMe
- +Great thermal design (heatsink version)
- +1200 TBW
Cons
- −Needs PCIe 5.0 slot
- −Expensive
- −Runs hot without sink
FAQ: WD_BLACK SN850X 2 TB vs Crucial T705 2TB
Which is better, WD_BLACK SN850X 2 TB or Crucial T705 2TB? +
Crucial T705 2TB scores 93 on our weighted rubric — ahead by 3. Your best pick depends on the sub-scores above.
Is WD_BLACK SN850X 2 TB worth the price? +
At $219, WD_BLACK SN850X 2 TB delivers a Specdex score of 90 — strongest in reliability.
Is Crucial T705 2TB worth the price? +
At $349, Crucial T705 2TB delivers a Specdex score of 93 — strongest in read.
Does WD_BLACK SN850X 2 TB or Crucial T705 2TB last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.