Western Digital
WD Black SN850X 2TB
PCIe 4.0 · 7,300 MB/s · Game Mode 2.0
90
/ 100
From $189
VS
WD Black SN850X 2TB wins by 2
Samsung
Samsung 990 EVO Plus 2TB
PCIe 4.0/5.0 · 7,250 MB/s · Affordable
88
/ 100
From $159
Specdex verdict
WD Black SN850X 2TB takes it — here’s why.
In our weighted Specdex score, WD Black SN850X 2TB lands at 90 and Samsung 990 EVO Plus 2TB at 88. That puts WD Black SN850X 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 EVO Plus 2TB if…
- ✓PCIe 5.0 capable (half-speed)
- ✓Great value
- ✓Samsung Magician software
Score breakdown
WD Black SN850X 2TB
90 read 94
write 92
endurance 90
value 88
Samsung 990 EVO Plus 2TB
88 read 92
write 88
endurance 84
value 94
Specs side-by-side
Spec
WD Black SN850X 2TB
Samsung 990 EVO Plus 2TB
Interface
PCIe 4.0 x4 NVMe
PCIe 4.0 x4 / 5.0 x2 NVMe
Read speed
7,300 MB/s
7,250 MB/s
Write speed
6,600 MB/s
6,300 MB/s
TBW
1200
1200
Form
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 EVO Plus 2TB
Pros
- +PCIe 5.0 capable (half-speed)
- +Great value
- +Samsung Magician software
Cons
- −Half-speed on PCIe 5.0
- −TBW lower than Pro
- −Write speed behind 990 Pro
FAQ: WD Black SN850X 2TB vs Samsung 990 EVO Plus 2TB
Which is better, WD Black SN850X 2TB or Samsung 990 EVO Plus 2TB? +
WD Black SN850X 2TB scores 90 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 EVO Plus 2TB worth the price? +
At $159, Samsung 990 EVO Plus 2TB delivers a Specdex score of 88 — strongest in value.
Does WD Black SN850X 2TB or Samsung 990 EVO Plus 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.