Product comparison · 2 memory modules

HP 256MB PC2-4200 vs HP 512MB PC2-6400

Key differences

Differences highlightedShow differences only

Comparison of 256MB PC2-4200, 512MB PC2-6400
9 specifications	A HP 256MB PC2-4200 View product	B HP 512MB PC2-6400 View product
Features3 differ
Internal memoryDiffers	0.25 GB	0.5 GB
Internal memory type	DDR2	DDR2
Component for	PC/Server	PC/Server
Memory form factor	240-pin DIMM	240-pin DIMM
ECCKnown for one	Unknown — not stated by the source	No
CAS latencyDiffers	4	6
Memory clock speedDiffers	533 MHz	800 MHz
Buffered memory typeKnown for one	Unknown — not stated by the source	Unregistered (unbuffered)
Module configurationKnown for one	32M x 16	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.