Product comparison · 2 memory modules

HP VH638AT memory module vs Samsung 1GB PC2-6400

Key differences

Internal memory
- VH638AT memory module:4 GB
- 1GB PC2-6400:1 GB
Memory layout (modules x size)
- VH638AT memory module:1 x 4 GB
- 1GB PC2-6400:1 x 1 GB
Internal memory type
- VH638AT memory module:DDR3
- 1GB PC2-6400:DDR2
Component for
- VH638AT memory module:PC/Server
- 1GB PC2-6400:Laptop
Memory form factor
- VH638AT memory module:240-pin DIMM
- 1GB PC2-6400:200-pin SO-DIMM
Memory clock speed
- VH638AT memory module:1333 MHz
- 1GB PC2-6400:800 MHz

Differences highlightedShow differences only

Comparison of VH638AT, 1GB PC2-6400
15 specifications	A HP VH638AT memory module Model VH638AT View product	B Samsung 1GB PC2-6400 View product
Features6 differ
Internal memoryDiffers	4 GB	1 GB
Memory layout (modules x size)Differs	1 x 4 GB	1 x 1 GB
Internal memory typeDiffers	DDR3	DDR2
Component forDiffers	PC/Server	Laptop
Memory form factorDiffers	240-pin DIMM	200-pin SO-DIMM
Memory clock speedDiffers	1333 MHz	800 MHz
CAS latencyKnown for one	Unknown — not stated by the source	6
Memory voltageKnown for one	Unknown — not stated by the source	1.8 V
Memory typeKnown for one	Unknown — not stated by the source	PC2-6400
Softwareidentical
Windows operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	30 mm	Unknown — not stated by the source
DepthKnown for one	133 mm	Unknown — not stated by the source
HeightKnown for one	4 mm	Unknown — not stated by the source
Other featuresidentical
Dimensions (WxDxH)Known for one	30 x 133 x 4 mm	Unknown — not stated by the source
Packaging dataidentical
Package typeKnown for one	Unknown — not stated by the source	SO-DIMM

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.