WD - Black SN850P 2TB (for PS5) vs WD - Black SN850X 2TB
Between the Black SN850P 2TB (for PS5) and Black SN850X 2TB, the Black SN850P 2TB (for PS5) comes out ahead in several specs, while the Black SN850X 2TB wins on several specs. Overall, the Black SN850P 2TB (for PS5) scores 68.7 and the Black SN850X 2TB scores 68.7 on our Mars Score.
Which should you buy?
These two are evenly matched on the broad strokes; the decision sits on which individual spec advantages weigh more for your use.
The Black SN850P 2TB (for PS5) does not pull ahead on any single popular-comparison spec — its strengths sit in the spec-table groups rather than the headline advantages.
The Black SN850X 2TB similarly does not carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable capacity, sequential read, sequential write, so those specs do not separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: WD - Black SN850P 2TB (for PS5) or WD - Black SN850X 2TB?
The two products are effectively tied on the current Mars Score.The more useful decision is the trade-off behind that result: compare the highlighted specifications against the way you will actually use the product.
Choose WD - Black SN850P 2TB (for PS5) if…
WD - Black SN850P 2TB (for PS5) does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
Choose WD - Black SN850X 2TB if…
WD - Black SN850X 2TB does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why WD - Black SN850P 2TB (for PS5) wins
- No decisive advantages.
Why WD - Black SN850X 2TB wins
- No decisive advantages.
Spec comparison
Capacity
| Spec | WD - Black SN850P 2TB (for PS5) | WD - Black SN850X 2TB |
|---|---|---|
| Capacity | 2000 GB | 2000 GB |
Performance
| Spec | WD - Black SN850P 2TB (for PS5) | WD - Black SN850X 2TB |
|---|---|---|
| Sequential read | 7300 MB/s | 7300 MB/s |
| Sequential write | 6600 MB/s | 6600 MB/s |
| Interface | PCIe 4.0 x4 | PCIe 4.0 x4 |
| Form factor | M.2 2280 | M.2 2280 |
Endurance
| Spec | WD - Black SN850P 2TB (for PS5) | WD - Black SN850X 2TB |
|---|---|---|
| Endurance (TBW)ⓘ | 1200 | 1200 |
| Warranty | 5 yrs | 5 yrs |