Product comparison · 2 memory modules

Samsung 2GB DDR3 1333MHz ECC Registered DIMM vs Samsung 4GB DDR3 1333MHz Unbuffered DIMM

Key differences

Internal memory
- 2GB DDR3 1333MHz ECC Registered DIMM:2 GB
- 4GB DDR3 1333MHz Unbuffered DIMM:4 GB
Memory layout (modules x size)
- 2GB DDR3 1333MHz ECC Registered DIMM:1 x 2 GB
- 4GB DDR3 1333MHz Unbuffered DIMM:2 x 2 GB
ECC
- 2GB DDR3 1333MHz ECC Registered DIMM:Yes
- 4GB DDR3 1333MHz Unbuffered DIMM:No
Buffered memory type
- 2GB DDR3 1333MHz ECC Registered DIMM:Registered (buffered)
- 4GB DDR3 1333MHz Unbuffered DIMM:Unregistered (unbuffered)
Chips organisation
- 2GB DDR3 1333MHz ECC Registered DIMM:256Mx72
- 4GB DDR3 1333MHz Unbuffered DIMM:512Mx64

Differences highlightedShow differences only

Comparison of 2GB DDR3 1333MHz ECC Registered DIMM, 4GB DDR3 1333MHz Unbuffered DIMM
12 specifications	A Samsung 2GB DDR3 1333MHz ECC Registered DIMM View product	B Samsung 4GB DDR3 1333MHz Unbuffered DIMM View product
Features4 differ
Internal memoryDiffers	2 GB	4 GB
Memory layout (modules x size)Differs	1 x 2 GB	2 x 2 GB
Internal memory type	DDR3	DDR3
Component for	PC/Server	PC/Server
Memory form factor	240-pin DIMM	240-pin DIMM
ECCDiffers	Yes	No
CAS latency	9	9
Memory clock speed	1333 MHz	1333 MHz
Buffered memory typeDiffers	Registered (buffered)	Unregistered (unbuffered)
Memory voltage	1.5 V	1.5 V
Packaging dataidentical
Package type	DIMM	DIMM
Other features1 differ
Chips organisationDiffers	256Mx72	512Mx64

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.