Product comparison · 2 memory modules

HP 8Gb DDR2 SDRAM 4x2Gb 667MHz ECC vs Kingston Technology 256MB DDR2

Key differences

Internal memory
- 8Gb DDR2 SDRAM 4x2Gb 667MHz ECC:8 GB
- 256MB DDR2:0.25 GB
Memory layout (modules x size)
- 8Gb DDR2 SDRAM 4x2Gb 667MHz ECC:4 x 2 GB
- 256MB DDR2:1 x 0.25 GB
Memory form factor
- 8Gb DDR2 SDRAM 4x2Gb 667MHz ECC:240-pin DIMM
- 256MB DDR2:144-pin SO-DIMM

Differences highlightedShow differences only

Comparison of 8Gb DDR2 SDRAM 4x2Gb 667MHz ECC, 256MB DDR2
18 specifications	A HP 8Gb DDR2 SDRAM 4x2Gb 667MHz ECC View product	B Kingston Technology 256MB DDR2 View product
Features3 differ
Internal memoryDiffers	8 GB	0.25 GB
Memory layout (modules x size)Differs	4 x 2 GB	1 x 0.25 GB
Internal memory type	DDR2	DDR2
Memory form factorDiffers	240-pin DIMM	144-pin SO-DIMM
Memory busKnown for one	Unknown — not stated by the source	16 bit
Buffered memory typeKnown for one	Unknown — not stated by the source	Unregistered (unbuffered)
Memory voltageKnown for one	Unknown — not stated by the source	1.8 V
Module configurationKnown for one	Unknown — not stated by the source	128M X 16
Memory typeKnown for one	Unknown — not stated by the source	DDR2
Lead platingKnown for one	Unknown — not stated by the source	Gold
ECCKnown for one	Yes	Unknown — not stated by the source
Memory clock speedKnown for one	667 MHz	Unknown — not stated by the source
Other featuresidentical
CompatibilityKnown for one	Unknown — not stated by the source	CB423-67951 (HP); CB423A (HP)
Bus clock rateKnown for one	Unknown — not stated by the source	533 MHz
Error indicationKnown for one	Unknown — not stated by the source	No
Form factorKnown for one	Unknown — not stated by the source	144-pin SODIMM
Internal memoryKnown for one	Unknown — not stated by the source	256 MB
Memory layoutKnown for one	Unknown — not stated by the source	1 x 256 MB

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.