Seagate - FireCuda 540 2TB vs WD - Black SN850P 2TB (for PS5)
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Seagate - FireCuda 540 2TB | WD - Black SN850P 2TB (for PS5) |
|---|---|---|
| Endurance (TBW) | 2000 | 1200 |
| Sequential write | 10000 MB/s | 6600 MB/s |
| Sequential read | 10000 MB/s | 7300 MB/s |
| Interface | PCIe 5.0 x4 | PCIe 4.0 x4 |
Between the FireCuda 540 2TB and Black SN850P 2TB (for PS5), the FireCuda 540 2TB comes out ahead in endurance (tbw) / sequential write, while the Black SN850P 2TB (for PS5) wins on several specs. Overall, the FireCuda 540 2TB scores 78.3 and the Black SN850P 2TB (for PS5) scores 68.7 on our Mars Score.
Which should you buy?
The FireCuda 540 2TB is the clear pick on raw spec strength, leading by 9.6 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the FireCuda 540 2TB if you care most about endurance (tbw) / sequential write. The biggest gaps in its favor are endurance (tbw), sequential write, sequential read, among others. The single most decisive one: Endurance (TBW) — 66.67% more. 2000 vs 1200.
The Black SN850P 2TB (for PS5) 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, so those specs do not separate the two — focus on the differences below.
Bottom line: the FireCuda 540 2TB is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Seagate - FireCuda 540 2TB or WD - Black SN850P 2TB (for PS5)?
Seagate - FireCuda 540 2TB leads the current Mars Score by 9.6 points.The more useful decision is the trade-off behind that result: compare sequential read, sequential write, interface against the way you will actually use the product.
Choose Seagate - FireCuda 540 2TB if…
Seagate - FireCuda 540 2TB has the measurable edge on tbw, write mbps, read mbps.
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.
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 Seagate - FireCuda 540 2TB wins
- ▲Endurance (TBW) — 66.67% more. 2000 vs 1200.
- ▲Sequential write — 51.52% more. 10000 MB/s vs 6600 MB/s.
- ▲Sequential read — 36.99% more. 10000 MB/s vs 7300 MB/s.
- ▲Interface: PCIe 5.0 x4 (vs PCIe 4.0 x4).
Why WD - Black SN850P 2TB (for PS5) wins
- No decisive advantages.
Spec comparison
Capacity
| Spec | Seagate - FireCuda 540 2TB | WD - Black SN850P 2TB (for PS5) |
|---|---|---|
| Capacity | 2000 GB | 2000 GB |
Performance
| Spec | Seagate - FireCuda 540 2TB | WD - Black SN850P 2TB (for PS5) |
|---|---|---|
| Sequential read | 10000 MB/slead | 7300 MB/s |
| Sequential write | 10000 MB/slead | 6600 MB/s |
| Interface | PCIe 5.0 x4lead | PCIe 4.0 x4 |
| Form factor | M.2 2280 | M.2 2280 |
Endurance
| Spec | Seagate - FireCuda 540 2TB | WD - Black SN850P 2TB (for PS5) |
|---|---|---|
| Endurance (TBW)ⓘ | 2000lead | 1200 |
| Warranty | 5 yrs | 5 yrs |