Product comparison · 2 memory modules

HP 1GB DDR-400 vs HP 2GB DDR2-667

Key differences

Differences highlightedShow differences only

Comparison of 1GB DDR-400, 2GB DDR2-667
12 specifications	A HP 1GB DDR-400 View product	B HP 2GB DDR2-667 View product
Features3 differ
Internal memoryDiffers	1 GB	2 GB
Internal memory typeDiffers	DDR	DDR2
Memory form factorKnown for one	Unknown — not stated by the source	240-pin DIMM
Memory clock speedDiffers	400 MHz	667 MHz
Buffered memory typeKnown for one	Unknown — not stated by the source	Unregistered (unbuffered)
Memory layout (modules x size)Known for one	1 x 1 GB	Unknown — not stated by the source
Weight & dimensions3 differ
WidthDiffers	171.4 mm	111 mm
DepthDiffers	63.5 mm	171.4 mm
HeightDiffers	111 mm	63.5 mm

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.