Product comparison · 2 memory modules

Samsung 4GB DDR3 1333MHz Unbuffered DIMM vs Samsung AA-MM2DR31 memory module

Key differences

Internal memory
- 4GB DDR3 1333MHz Unbuffered DIMM:4 GB
- AA-MM2DR31 memory module:2 GB
Internal memory type
- 4GB DDR3 1333MHz Unbuffered DIMM:DDR3
- AA-MM2DR31 memory module:DDR2
Component for
- 4GB DDR3 1333MHz Unbuffered DIMM:PC/Server
- AA-MM2DR31 memory module:Laptop
Memory form factor
- 4GB DDR3 1333MHz Unbuffered DIMM:240-pin DIMM
- AA-MM2DR31 memory module:200-pin SO-DIMM
Memory clock speed
- 4GB DDR3 1333MHz Unbuffered DIMM:1333 MHz
- AA-MM2DR31 memory module:1066 MHz

Differences highlightedShow differences only

Comparison of 4GB DDR3 1333MHz Unbuffered DIMM, AA-MM2DR31
13 specifications	A Samsung 4GB DDR3 1333MHz Unbuffered DIMM View product	B Samsung AA-MM2DR31 memory module Model AA-MM2DR31 View product
Features5 differ
Internal memoryDiffers	4 GB	2 GB
Memory layout (modules x size)Known for one	2 x 2 GB	Unknown — not stated by the source
Internal memory typeDiffers	DDR3	DDR2
Component forDiffers	PC/Server	Laptop
Memory form factorDiffers	240-pin DIMM	200-pin SO-DIMM
ECCKnown for one	No	Unknown — not stated by the source
CAS latencyKnown for one	9	Unknown — not stated by the source
Memory clock speedDiffers	1333 MHz	1066 MHz
Buffered memory typeKnown for one	Unregistered (unbuffered)	Unknown — not stated by the source
Memory voltageKnown for one	1.5 V	Unknown — not stated by the source
Packaging dataidentical
Package typeKnown for one	DIMM	Unknown — not stated by the source
Other featuresidentical
Chips organisationKnown for one	512Mx64	Unknown — not stated by the source
Data transfer rateKnown for one	Unknown — not stated by the source	8500 Mbit/s

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.