Product comparison · 2 memory modules

HP 2Gb DDR2 2x1Gb 667MHz ECC vs HP 4Gb DDR2 SDRAM 4x1Gb 667MHz

Key differences

Internal memory
- 2Gb DDR2 2x1Gb 667MHz ECC:2 GB
- 4Gb DDR2 SDRAM 4x1Gb 667MHz:4 GB
Memory layout (modules x size)
- 2Gb DDR2 2x1Gb 667MHz ECC:2 x 1 GB
- 4Gb DDR2 SDRAM 4x1Gb 667MHz:4 x 1 GB

Differences highlightedShow differences only

Comparison of 2Gb DDR2 2x1Gb 667MHz ECC, 4Gb DDR2 SDRAM 4x1Gb 667MHz
7 specifications	A HP 2Gb DDR2 2x1Gb 667MHz ECC View product	B HP 4Gb DDR2 SDRAM 4x1Gb 667MHz View product
Features2 differ
Internal memoryDiffers	2 GB	4 GB
Memory layout (modules x size)Differs	2 x 1 GB	4 x 1 GB
Internal memory type	DDR2	DDR2
Memory form factor	240-pin DIMM	240-pin DIMM
ECCKnown for one	Yes	Unknown — not stated by the source
Memory clock speed	667 MHz	667 MHz
Memory typeKnown for one	Unknown — not stated by the source	PC2-5300

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.