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Lexar - NM800 Pro 2TB vs SanDisk - Extreme PRO 2TB (Portable)

Last updated · How Mars Score works
NM800 Pro 2TBLEXARRENDER
Probe A
Lexar
NM800 Pro 2TB
69.6/ 100B
Performance68· 60%
Capacity73· 20%
Endurance· 20%
Extreme PRO 2TB (Portable)SANDISKRENDER
Probe B
SanDisk
Extreme PRO 2TB (Portable)
52.5/ 100D
Performance45· 60%
Capacity73· 20%
Endurance· 20%
Quick verdict

Between the NM800 Pro 2TB and Extreme PRO 2TB (Portable), the NM800 Pro 2TB comes out ahead in sequential read and sequential write, while the Extreme PRO 2TB (Portable) wins on endurance (tbw) and interface. Overall, the NM800 Pro 2TB scores 69.6 and the Extreme PRO 2TB (Portable) scores 52.5 on our Mars Score.

Buying advice

Which should you buy?

The NM800 Pro 2TB is the clear pick on raw spec strength, leading by 17.1 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 sequential read and sequential write. The biggest gaps in its favor are sequential read, sequential write.

Pick the Extreme PRO 2TB (Portable) if you care most about endurance (tbw) and interface. Its strongest claims are endurance (tbw), interface.

Both ship with comparable capacity, so those specs don't separate the two — focus on the differences below.

Bottom line: the NM800 Pro 2TB is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.

Why Lexar - NM800 Pro 2TB wins

  • Sequential read — 275.00% more. 7500 MB/s vs 2000 MB/s.
  • Sequential write — 225.00% more. 6500 MB/s vs 2000 MB/s.

Why SanDisk - Extreme PRO 2TB (Portable) wins

  • Endurance (TBW) — 33.33% more. 2000 vs 1500.
  • Interface: USB 3.2 Gen 2x2 (vs PCIe 4.0 x4).
Full readout

Spec comparison

Capacity

SpecLexar - NM800 Pro 2TBSanDisk - Extreme PRO 2TB (Portable)
Capacity2000 GB2000 GB

Performance

SpecLexar - NM800 Pro 2TBSanDisk - Extreme PRO 2TB (Portable)
Sequential read7500 MB/slead2000 MB/s
Sequential write6500 MB/slead2000 MB/s
InterfacePCIe 4.0 x4USB 3.2 Gen 2x2lead
Form factorM.2 2280Portable USBlead

Endurance

SpecLexar - NM800 Pro 2TBSanDisk - Extreme PRO 2TB (Portable)
Endurance (TBW)15002000lead
Warranty5 yrs5 yrs
Reader questions

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Spec-level deep dives

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