Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Lexar - NM800 Pro 2TB | Sabrent - Rocket 5 2TB |
|---|---|---|
| Sequential read | 7500 MB/s | 14000 MB/s |
| Sequential write | 6500 MB/s | 12000 MB/s |
| Endurance (TBW) | 1500 | 1200 |
| Interface | PCIe 4.0 x4 | PCIe 5.0 x4 |
Between the NM800 Pro 2TB and Rocket 5 2TB, the NM800 Pro 2TB comes out ahead in endurance (tbw), while the Rocket 5 2TB wins on sequential read / sequential write. Overall, the NM800 Pro 2TB scores 68.8 and the Rocket 5 2TB scores 84.4 on our Mars Score.
Which should you buy?
The Rocket 5 2TB is the clear pick on raw spec strength, leading by 15.6 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 NM800 Pro 2TB if you care most about endurance (tbw). The biggest gaps in its favor are endurance (tbw). The single most decisive one: Endurance (TBW) — 25.00% more. 1500 vs 1200.
Pick the Rocket 5 2TB if you care most about sequential read / sequential write. Its strongest claims are sequential read, sequential write, interface. The single most decisive one: Sequential read — 86.67% more. 14000 MB/s vs 7500 MB/s.
Both ship with comparable capacity, so those specs do not separate the two — focus on the differences below.
Bottom line: the Rocket 5 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: Lexar - NM800 Pro 2TB or Sabrent - Rocket 5 2TB?
Sabrent - Rocket 5 2TB leads the current Mars Score by 15.6 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 Lexar - NM800 Pro 2TB if…
Lexar - NM800 Pro 2TB has the measurable edge on tbw.
Choose Sabrent - Rocket 5 2TB if…
Sabrent - Rocket 5 2TB has the measurable edge on read mbps, write mbps, 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 Lexar - NM800 Pro 2TB wins
- ▲Endurance (TBW) — 25.00% more. 1500 vs 1200.
Why Sabrent - Rocket 5 2TB wins
- ▲Sequential read — 86.67% more. 14000 MB/s vs 7500 MB/s.
- ▲Sequential write — 84.62% more. 12000 MB/s vs 6500 MB/s.
- ▲Interface: PCIe 5.0 x4 (vs PCIe 4.0 x4).
Spec comparison
Capacity
| Spec | Lexar - NM800 Pro 2TB | Sabrent - Rocket 5 2TB |
|---|---|---|
| Capacity | 2000 GB | 2000 GB |
Performance
| Spec | Lexar - NM800 Pro 2TB | Sabrent - Rocket 5 2TB |
|---|---|---|
| Sequential read | 7500 MB/s | 14000 MB/slead |
| Sequential write | 6500 MB/s | 12000 MB/slead |
| Interface | PCIe 4.0 x4 | PCIe 5.0 x4lead |
| Form factor | M.2 2280 | M.2 2280 |
Endurance
| Spec | Lexar - NM800 Pro 2TB | Sabrent - Rocket 5 2TB |
|---|---|---|
| Endurance (TBW)ⓘ | 1500lead | 1200 |
| Warranty | 5 yrs | 5 yrs |