HP 512MB DDR-400 vs HP 512MB PC100 ECC

Comparison of 512MB DDR-400, 512MB PC100 ECC

9 specifications	A HP 512MB DDR-400View product	B HP 512MB PC100 ECCView product
Features1 differ
Memory layout (modules x size)Known for one	1 x 0.5 GB	—Unknown — not stated by the source
Internal memory typeKnown for one	DDR	—Unknown — not stated by the source
Memory form factorKnown for one	184-pin DIMM	—Unknown — not stated by the source
Memory clock speedDiffers	400 MHz	100 MHz
ECCKnown for one	—Unknown — not stated by the source	Yes
Buffered memory typeKnown for one	—Unknown — not stated by the source	Registered (buffered)
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.