Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Crucial - MX500 1TB | Seagate - FireCuda 540 2TB |
|---|---|---|
| Sequential write | 510 MB/s | 10000 MB/s |
| Sequential read | 560 MB/s | 10000 MB/s |
| Endurance (TBW) | 360 | 2000 |
| Capacity | 1000 GB | 2000 GB |
| Interface | SATA III | PCIe 5.0 x4 |
Between the MX500 1TB and FireCuda 540 2TB, the MX500 1TB comes out ahead in several specs, while the FireCuda 540 2TB wins on sequential write / sequential read. Overall, the MX500 1TB scores 43.5 and the FireCuda 540 2TB scores 78.3 on our Mars Score.
Which should you buy?
The FireCuda 540 2TB is the clear pick on raw spec strength, leading by 34.8 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.
The MX500 1TB does not pull ahead on any single popular-comparison spec — its strengths sit in the spec-table groups rather than the headline advantages.
Pick the FireCuda 540 2TB if you care most about sequential write / sequential read. Its strongest claims are sequential write, sequential read, endurance (tbw), among others. The single most decisive one: Sequential write — 1860.78% more. 10000 MB/s vs 510 MB/s.
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
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: Crucial - MX500 1TB or Seagate - FireCuda 540 2TB?
Seagate - FireCuda 540 2TB leads the current Mars Score by 34.8 points.The more useful decision is the trade-off behind that result: compare capacity, sequential read, sequential write, interface against the way you will actually use the product.
Choose Crucial - MX500 1TB if…
Crucial - MX500 1TB does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
Choose Seagate - FireCuda 540 2TB if…
Seagate - FireCuda 540 2TB has the measurable edge on write mbps, read mbps, tbw.
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 Crucial - MX500 1TB wins
- No decisive advantages.
Why Seagate - FireCuda 540 2TB wins
- ▲Sequential write — 1860.78% more. 10000 MB/s vs 510 MB/s.
- ▲Sequential read — 1685.71% more. 10000 MB/s vs 560 MB/s.
- ▲Endurance (TBW) — 455.56% more. 2000 vs 360.
- ▲Capacity — 100.00% more. 2000 GB vs 1000 GB.
- ▲Interface: PCIe 5.0 x4 (vs SATA III).
Spec comparison
Capacity
| Spec | Crucial - MX500 1TB | Seagate - FireCuda 540 2TB |
|---|---|---|
| Capacity | 1000 GB | 2000 GBlead |
Performance
| Spec | Crucial - MX500 1TB | Seagate - FireCuda 540 2TB |
|---|---|---|
| Sequential read | 560 MB/s | 10000 MB/slead |
| Sequential write | 510 MB/s | 10000 MB/slead |
| Interface | SATA III | PCIe 5.0 x4lead |
| Form factor | 2.5" SATA | M.2 2280lead |
Endurance
| Spec | Crucial - MX500 1TB | Seagate - FireCuda 540 2TB |
|---|---|---|
| Endurance (TBW)ⓘ | 360 | 2000lead |
| Warranty | 5 yrs | 5 yrs |