HP 256MB DDR2-553 vs HP 512MB PC100 ECC

Comparison of 256MB DDR2-553, 512MB PC100 ECC

9 specifications	A HP 256MB DDR2-553View product	B HP 512MB PC100 ECCView product
Features2 differ
Internal memoryDiffers	0.25 GB	0.5 GB
Memory layout (modules x size)Known for one	1 x 0.25 GB	—Unknown — not stated by the source
Internal memory typeKnown for one	DDR2	—Unknown — not stated by the source
Component for	PC/Server	PC/Server
ECC	Yes	Yes
Memory clock speedDiffers	533 MHz	100 MHz
Buffered memory typeKnown for one	—Unknown — not stated by the source	Registered (buffered)
Weight & dimensionsidentical
WeightKnown for one	31.2 g	—Unknown — not stated by the source
Packaging dataidentical
Package typeKnown for one	—Unknown — not stated by the source	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.