HP 512MB SDRAM 133MHz vs Kingston Technology ValueRAM 2x 512MB 400MHz DDR2

Comparison of 512MB SDRAM 133MHz, ValueRAM 2x 512MB 400MHz DDR2

16 specifications	A HP 512MB SDRAM 133MHzView product	B Kingston Technology ValueRAM 2x 512MB 400MHz DDR2View product
Features1 differ
Internal memory	0.5 GB	0.5 GB
Internal memory typeKnown for one	—Unknown — not stated by the source	DDR2
Memory form factorDiffers	168-pin DIMM	240-pin DIMM
ECC	Yes	Yes
CAS latencyKnown for one	—Unknown — not stated by the source	3
Memory busKnown for one	—Unknown — not stated by the source	72 bit
Check widthKnown for one	—Unknown — not stated by the source	4 bit
Memory layout (modules x size)Known for one	1 x 0.5 GB	—Unknown — not stated by the source
Memory clock speedKnown for one	133 MHz	—Unknown — not stated by the source
Buffered memory typeKnown for one	Registered (buffered)	—Unknown — not stated by the source
Memory voltageKnown for one	3.3 V	—Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	—Unknown — not stated by the source	133 mm
DepthKnown for one	—Unknown — not stated by the source	4 mm
HeightKnown for one	—Unknown — not stated by the source	30 mm
Other featuresidentical
Mac compatibilityKnown for one	—Unknown — not stated by the source	No
Packaging dataidentical
Package typeKnown for one	DIMM	—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.