Samsung 990 EVO 1 TB vs Samsung PM951 256 GB

A side-by-side spec comparison of the Samsung 990 EVO 1 TB and the Samsung PM951 256 GB. We line up every specification, highlight the winner of each, and tally an overall verdict so you can decide which storage is right for your build.

Side-by-side specification comparison of Samsung 990 EVO 1 TB and Samsung PM951 256 GB.
Specification	Samsung 990 EVO 1 TB $249.61 Winner Buy on Newegg	No image Samsung PM951 256 GB No price data
Type	SSD	SSD
Cache	0	0
Capacity	1000 GB	256 GB
Interface	NVMe Gen5	NVMe Gen3
Read Speed	12000 MB/s	3500 MB/s
Form Factor	M.2 2280	M.2 2280
Write Speed	10000 MB/s	3000 MB/s

Samsung 990 EVO 1 TB

specs won

Samsung PM951 256 GB

specs won

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