Crucial - T705 2TB vs SanDisk - Extreme PRO 2TB (Portable)
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Crucial - T705 2TB | SanDisk - Extreme PRO 2TB (Portable) |
|---|---|---|
| Sequential read | 14500 MB/s | 2000 MB/s |
| Sequential write | 12700 MB/s | 2000 MB/s |
| Endurance (TBW) | 1200 | 2000 |
| Interface | PCIe 5.0 x4 | USB 3.2 Gen 2x2 |
Between the T705 2TB and Extreme PRO 2TB (Portable), the T705 2TB comes out ahead in sequential read / sequential write, while the Extreme PRO 2TB (Portable) wins on endurance (tbw) / interface. Overall, the T705 2TB scores 85.1 and the Extreme PRO 2TB (Portable) scores 64.2 on our Mars Score.
Which should you buy?
The T705 2TB is the clear pick on raw spec strength, leading by 20.9 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 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 — 625.00% more. 14500 MB/s vs 2000 MB/s.
Pick the Extreme PRO 2TB (Portable) if you care most about endurance (tbw) / interface. Its strongest claims are endurance (tbw), interface. The single most decisive one: Endurance (TBW) — 66.67% more. 2000 vs 1200.
Both ship with comparable capacity, 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 SanDisk - Extreme PRO 2TB (Portable)?
Crucial - T705 2TB leads the current Mars Score by 20.9 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 Crucial - T705 2TB if…
Crucial - T705 2TB has the measurable edge on read mbps, write mbps.
Choose SanDisk - Extreme PRO 2TB (Portable) if…
SanDisk - Extreme PRO 2TB (Portable) has the measurable edge on tbw, interface.
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 — 625.00% more. 14500 MB/s vs 2000 MB/s.
- ▲Sequential write — 535.00% more. 12700 MB/s vs 2000 MB/s.
Why SanDisk - Extreme PRO 2TB (Portable) wins
- ▲Endurance (TBW) — 66.67% more. 2000 vs 1200.
- ▲Interface: USB 3.2 Gen 2x2 (vs PCIe 5.0 x4).
Spec comparison
Capacity
| Spec | Crucial - T705 2TB | SanDisk - Extreme PRO 2TB (Portable) |
|---|---|---|
| Capacity | 2000 GB | 2000 GB |
Performance
| Spec | Crucial - T705 2TB | SanDisk - Extreme PRO 2TB (Portable) |
|---|---|---|
| Sequential read | 14500 MB/slead | 2000 MB/s |
| Sequential write | 12700 MB/slead | 2000 MB/s |
| Interface | PCIe 5.0 x4 | USB 3.2 Gen 2x2lead |
| Form factor | M.2 2280 | Portable USBlead |
Endurance
| Spec | Crucial - T705 2TB | SanDisk - Extreme PRO 2TB (Portable) |
|---|---|---|
| Endurance (TBW)ⓘ | 1200 | 2000lead |
| Warranty | 5 yrs | 5 yrs |