Product comparison · 2 memory modules

HP VH639AA memory module vs Samsung 2GB DDR3 1333MHz reg ECC

6specifications compared
4differ
2identical
10known for one product only

Key differences

Internal memory
- VH639AA memory module:1 GB
- 2GB DDR3 1333MHz reg ECC:2 GB
Memory layout (modules x size)
- VH639AA memory module:1 x 1 GB
- 2GB DDR3 1333MHz reg ECC:1 x 2 GB
Memory form factor
- VH639AA memory module:204-pin SO-DIMM
- 2GB DDR3 1333MHz reg ECC:240-pin DIMM
Memory type
- VH639AA memory module:PC3-10600
- 2GB DDR3 1333MHz reg ECC:DDR3

Side by side

Differences highlightedShow differences only

Comparison of VH639AA, 2GB DDR3 1333MHz reg ECC
16 specifications	A HP VH639AA memory module Model VH639AA View product	B Samsung 2GB DDR3 1333MHz reg ECC View product
Features4 differ
Internal memoryDiffers	1 GB	2 GB
Memory layout (modules x size)Differs	1 x 1 GB	1 x 2 GB
Internal memory type	DDR3	DDR3
Memory form factorDiffers	204-pin SO-DIMM	240-pin DIMM
ECCKnown for one	Unknown — not stated by the source	Yes
CAS latencyKnown for one	Unknown — not stated by the source	9
Memory clock speed	1333 MHz	1333 MHz
Memory busKnown for one	Unknown — not stated by the source	72 bit
Buffered memory typeKnown for one	Unknown — not stated by the source	Registered (buffered)
Memory voltageKnown for one	Unknown — not stated by the source	1.5 V
SPD profileKnown for one	Unknown — not stated by the source	Yes
Memory typeDiffers	PC3-10600	DDR3
Other featuresidentical
Chips organisationKnown for one	Unknown — not stated by the source	256M x 72
Dimensions (WxDxH)Known for one	30 x 67.6 x 38 mm	Unknown — not stated by the source
Size (imperial)Known for one	3 cm (1.18")	Unknown — not stated by the source
Packaging dataidentical
Package typeKnown for one	SO-DIMM	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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