Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Crucial - T705 2TB | Seagate - FireCuda 540 2TB |
|---|---|---|
| Endurance (TBW) | 1200 | 2000 |
| Sequential read | 14500 MB/s | 10000 MB/s |
| Sequential write | 12700 MB/s | 10000 MB/s |
Between the T705 2TB and FireCuda 540 2TB, the T705 2TB comes out ahead in sequential read / sequential write, while the FireCuda 540 2TB wins on endurance (tbw). Overall, the T705 2TB scores 85.1 and the FireCuda 540 2TB scores 78.3 on our Mars Score.
Which should you buy?
The T705 2TB edges ahead on the Mars Score (85.1 vs 78.3), but the 6.8-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the T705 2TB if you care most about sequential read / sequential write. The biggest gaps in its favor are sequential read, sequential write. The single most decisive one: Sequential read — 45.00% more. 14500 MB/s vs 10000 MB/s.
Pick the FireCuda 540 2TB if you care most about endurance (tbw). Its strongest claims are endurance (tbw). The single most decisive one: Endurance (TBW) — 66.67% more. 2000 vs 1200.
Both ship with comparable capacity, interface, so those specs do not separate the two — focus on the differences below.
Bottom line: the T705 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 - T705 2TB or Seagate - FireCuda 540 2TB?
Crucial - T705 2TB leads the current Mars Score by 6.8 points.The more useful decision is the trade-off behind that result: compare sequential read, sequential write against the way you will actually use the product.
Choose Crucial - T705 2TB if…
Crucial - T705 2TB has the measurable edge on read mbps, write mbps.
Choose Seagate - FireCuda 540 2TB if…
Seagate - FireCuda 540 2TB has the measurable edge on 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 - T705 2TB wins
- ▲Sequential read — 45.00% more. 14500 MB/s vs 10000 MB/s.
- ▲Sequential write — 27.00% more. 12700 MB/s vs 10000 MB/s.
Why Seagate - FireCuda 540 2TB wins
- ▲Endurance (TBW) — 66.67% more. 2000 vs 1200.
Spec comparison
Capacity
| Spec | Crucial - T705 2TB | Seagate - FireCuda 540 2TB |
|---|---|---|
| Capacity | 2000 GB | 2000 GB |
Performance
| Spec | Crucial - T705 2TB | Seagate - FireCuda 540 2TB |
|---|---|---|
| Sequential read | 14500 MB/slead | 10000 MB/s |
| Sequential write | 12700 MB/slead | 10000 MB/s |
| Interface | PCIe 5.0 x4 | PCIe 5.0 x4 |
| Form factor | M.2 2280 | M.2 2280 |
Endurance
| Spec | Crucial - T705 2TB | Seagate - FireCuda 540 2TB |
|---|---|---|
| Endurance (TBW)ⓘ | 1200 | 2000lead |
| Warranty | 5 yrs | 5 yrs |