Product comparison · 2 memory modules

HP 1GB DDR2 667MHz vs HP 2GB DDR2-400

Key differences

Internal memory
- 1GB DDR2 667MHz:1 GB
- 2GB DDR2-400:2 GB
Memory layout (modules x size)
- 1GB DDR2 667MHz:1 x 1 GB
- 2GB DDR2-400:2 x 1 GB
Memory clock speed
- 1GB DDR2 667MHz:667 MHz
- 2GB DDR2-400:400 MHz

Differences highlightedShow differences only

Comparison of 1GB DDR2 667MHz, 2GB DDR2-400
8 specifications	A HP 1GB DDR2 667MHz View product	B HP 2GB DDR2-400 View product
Features3 differ
Internal memoryDiffers	1 GB	2 GB
Memory layout (modules x size)Differs	1 x 1 GB	2 x 1 GB
Internal memory type	DDR2	DDR2
Component for	PC/Server	PC/Server
Memory form factor	240-pin DIMM	240-pin DIMM
ECCKnown for one	Yes	Unknown — not stated by the source
Memory clock speedDiffers	667 MHz	400 MHz
Buffered memory typeKnown for one	Registered (buffered)	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.