Product Chart / Ssd drives / Samsung PM991
vs
WD Blue SN550

Samsung PM991 vs WD Blue SN550

vs
Samsung PM991 WD Blue SN550
M.2
Form
 M.2
PCIe
Interface
 PCIe
128
Storage
 250
2000
Seq. Read Speed
 2400
1000
Seq. Write Speed
 950
64
Rand. Read Speed
 170
220
Rand. Write Speed
 135
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