Product comparison · 2 memory modules

HP 4Gb DDR2 SDRAM 4x1Gb 667MHz ECC vs Kingston Technology 2GB 800MHz DDR2 Non-ECC CL6 SODIMM

Key differences

Internal memory
- 4Gb DDR2 SDRAM 4x1Gb 667MHz ECC:4 GB
- 2GB 800MHz DDR2 Non-ECC CL6 SODIMM:2 GB
Memory layout (modules x size)
- 4Gb DDR2 SDRAM 4x1Gb 667MHz ECC:4 x 1 GB
- 2GB 800MHz DDR2 Non-ECC CL6 SODIMM:1 x 2 GB
Memory form factor
- 4Gb DDR2 SDRAM 4x1Gb 667MHz ECC:240-pin DIMM
- 2GB 800MHz DDR2 Non-ECC CL6 SODIMM:200-pin SO-DIMM
ECC
- 4Gb DDR2 SDRAM 4x1Gb 667MHz ECC:Yes
- 2GB 800MHz DDR2 Non-ECC CL6 SODIMM:No
Memory type
- 4Gb DDR2 SDRAM 4x1Gb 667MHz ECC:PC2-5300
- 2GB 800MHz DDR2 Non-ECC CL6 SODIMM:DDR2

Differences highlightedShow differences only

Comparison of 4Gb DDR2 SDRAM 4x1Gb 667MHz ECC, 2GB 800MHz DDR2 Non-ECC CL6 SODIMM
18 specifications	A HP 4Gb DDR2 SDRAM 4x1Gb 667MHz ECC View product	B Kingston Technology 2GB 800MHz DDR2 Non-ECC CL6 SODIMM View product
Features5 differ
Internal memoryDiffers	4 GB	2 GB
Memory layout (modules x size)Differs	4 x 1 GB	1 x 2 GB
Internal memory type	DDR2	DDR2
Memory form factorDiffers	240-pin DIMM	200-pin SO-DIMM
ECCDiffers	Yes	No
CAS latencyKnown for one	Unknown — not stated by the source	6
Memory busKnown for one	Unknown — not stated by the source	64 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	256M X 64
Memory typeDiffers	PC2-5300	DDR2
Memory clock speedKnown for one	667 MHz	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	67.6 mm
Other featuresidentical
Bus clock rateKnown for one	Unknown — not stated by the source	800 MHz
Error indicationKnown for one	Unknown — not stated by the source	No
Form factorKnown for one	Unknown — not stated by the source	200-pin SODIMM
Internal memoryKnown for one	Unknown — not stated by the source	2048 MB
Memory layoutKnown for one	Unknown — not stated by the source	1 x 2048 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.