Product comparison · 2 memory modules

Samsung 2GB DDR3 1333MHz reg ECC vs Samsung DDR3 4GB PC1066

7specifications compared
4differ
3identical
6known for one product only

Key differences

Internal memory
- 2GB DDR3 1333MHz reg ECC:2 GB
- DDR3 4GB PC1066:4 GB
Memory layout (modules x size)
- 2GB DDR3 1333MHz reg ECC:1 x 2 GB
- DDR3 4GB PC1066:2 x 2 GB
ECC
- 2GB DDR3 1333MHz reg ECC:Yes
- DDR3 4GB PC1066:No
Memory clock speed
- 2GB DDR3 1333MHz reg ECC:1333 MHz
- DDR3 4GB PC1066:1066 MHz

Side by side

Differences highlightedShow differences only

Comparison of 2GB DDR3 1333MHz reg ECC, DDR3 4GB PC1066
13 specifications	A Samsung 2GB DDR3 1333MHz reg ECC View product	B Samsung DDR3 4GB PC1066 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
Memory form factor	240-pin DIMM	240-pin DIMM
ECCDiffers	Yes	No
CAS latencyKnown for one	9	Unknown — not stated by the source
Memory clock speedDiffers	1333 MHz	1066 MHz
Memory busKnown for one	72 bit	Unknown — not stated by the source
Buffered memory typeKnown for one	Registered (buffered)	Unknown — not stated by the source
Memory voltage	1.5 V	1.5 V
SPD profileKnown for one	Yes	Unknown — not stated by the source
Memory typeKnown for one	DDR3	Unknown — not stated by the source
Other featuresidentical
Chips organisationKnown for one	256M x 72	Unknown — not stated by the source

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.

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