WD WD Black SN850X 2TB vs WD WD Black SN850X 4TB
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Key differences
- •WD WD Black SN850X 4TB has higher Capacity (4000 GB vs 2000 GB)
- •WD WD Black SN850X 4TB has higher Endurance (TBW) (2,400 vs 1,200)
- •WD WD Black SN850X 4TB has higher Sequential write (6,600 vs 6,300)
Full spec comparison
Spec
WD WD Black SN850X 2TB
WD WD Black SN850X 4TB
Performance
Capacity2000 GB4000 GB▲
InterfacePCIe 4.0 x4PCIe 4.0 x4
Form factorM.2 2280M.2 2280
ProtocolNVMe 1.4NVMe 1.4
Sequential read7,3007,300
Sequential write6,3006,600▲
Reliability
Endurance (TBW)1,2002,400▲
DRAM cacheYesYes
NAND type3D TLC3D TLC
Warranty5 years5 years