Product comparison · 2 memory modules

Samsung M391B5673EH1-CF8 memory module vs Samsung M393AAK40B42-CWD memory module

Key differences

Internal memory
- M391B5673EH1-CF8 memory module:2 GB
- M393AAK40B42-CWD memory module:128 GB
Memory layout (modules x size)
- M391B5673EH1-CF8 memory module:1 x 2 GB
- M393AAK40B42-CWD memory module:1 x 128 GB
Internal memory type
- M391B5673EH1-CF8 memory module:DDR3
- M393AAK40B42-CWD memory module:DDR4
Memory form factor
- M391B5673EH1-CF8 memory module:240-pin DIMM
- M393AAK40B42-CWD memory module:RDIMM
Memory clock speed
- M391B5673EH1-CF8 memory module:1066 MHz
- M393AAK40B42-CWD memory module:2666 MHz
Buffered memory type
- M391B5673EH1-CF8 memory module:Unregistered (unbuffered)
- M393AAK40B42-CWD memory module:Registered (buffered)
Memory ranking
- M391B5673EH1-CF8 memory module:2
- M393AAK40B42-CWD memory module:8

Differences highlightedShow differences only

Comparison of M391B5673EH1-CF8, M393AAK40B42-CWD
12 specifications	A Samsung M391B5673EH1-CF8 memory module Model M391B5673EH1-CF8 View product	B Samsung M393AAK40B42-CWD memory module Model M393AAK40B42-CWD View product
Features7 differ
Internal memoryDiffers	2 GB	128 GB
Memory layout (modules x size)Differs	1 x 2 GB	1 x 128 GB
Internal memory typeDiffers	DDR3	DDR4
Component for	PC/Server	PC/Server
Memory form factorDiffers	240-pin DIMM	RDIMM
CAS latencyKnown for one	7	Unknown — not stated by the source
Memory clock speedDiffers	1066 MHz	2666 MHz
Buffered memory typeDiffers	Unregistered (unbuffered)	Registered (buffered)
Memory rankingDiffers	2	8
Module configurationKnown for one	128M x 8	Unknown — not stated by the source
ECCKnown for one	Unknown — not stated by the source	Yes
Memory voltageKnown for one	Unknown — not stated by the source	1.2 V

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.