Western Digital
WD Black SN850X 2TB
PCIe 4.0 · 7,300 MB/s · Game Mode 2.0
90
/ 100
From $189
VS
Samsung 990 Pro 2TB wins by 2
Samsung
Samsung 990 Pro 2TB
PCIe 4.0 · 7,450/6,900 MB/s
92
/ 100
From $199
Specdex verdict
Samsung 990 Pro 2TB takes it — here’s why.
In our weighted Specdex score, WD Black SN850X 2TB lands at 90 and Samsung 990 Pro 2TB at 92. That puts Samsung 990 Pro 2TB ahead by 2 points — a narrow margin driven mostly by its strengths in the categories below.
Pick WD Black SN850X 2TB if…
- ✓Fastest PCIe 4.0 in real-world games
- ✓Excellent endurance
- ✓Optional heatsink for PS5
Pick Samsung 990 Pro 2TB if…
- ✓Best-in-class sustained speeds
- ✓1200 TBW endurance
- ✓Magician toolkit
WD Black SN850X 2TB 90
vs 92 Samsung 990 Pro 2TB
Score breakdown
WD Black SN850X 2TB
90 read 94
write 92
endurance 90
value 88
Samsung 990 Pro 2TB
92 read 96
write 94
endurance 92
value 86
Specs side-by-side
| Spec | WD Black SN850X 2TB | Samsung 990 Pro 2TB |
|---|---|---|
| Interface | PCIe 4.0 x4 NVMe | PCIe 4.0 x4 NVMe |
| Read speed | 7,300 MB/s | 7,450 MB/s |
| Write speed | 6,600 MB/s | 6,900 MB/s |
| TBW | 1200 | 1200 |
| Form | M.2 2280 | M.2 2280 |
WD Black SN850X 2TB
Pros
- +Fastest PCIe 4.0 in real-world games
- +Excellent endurance
- +Optional heatsink for PS5
Cons
- −PCIe 4.0 only
- −Runs warm without heatsink
- −Software dated
Samsung 990 Pro 2TB
Pros
- +Best-in-class sustained speeds
- +1200 TBW endurance
- +Magician toolkit
Cons
- −Only PCIe 4.0
- −No included heatsink
- −Premium price
FAQ: WD Black SN850X 2TB vs Samsung 990 Pro 2TB
Which is better, WD Black SN850X 2TB or Samsung 990 Pro 2TB? +
Samsung 990 Pro 2TB scores 92 on our weighted rubric — ahead by 2. Your best pick depends on the sub-scores above.
Is WD Black SN850X 2TB worth the price? +
At $189, WD Black SN850X 2TB delivers a Specdex score of 90 — strongest in read.
Is Samsung 990 Pro 2TB worth the price? +
At $199, Samsung 990 Pro 2TB delivers a Specdex score of 92 — strongest in read.
Does WD Black SN850X 2TB or Samsung 990 Pro 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.