HP 405476-051 memory module vs HP 405477-061 memory module

Comparison of 405476-051, 405477-061

9 specifications	A HP 405476-051 memory module Model 405476-051 View product	B HP 405477-061 memory module Model 405477-061 View product
Features1 differ
Internal memoryDiffers	2 GB	4 GB
Memory layout (modules x size)Known for one	1 x 2 GB	—Unknown — not stated by the source
Internal memory type	DDR2	DDR2
Component for	PC/Server	PC/Server
Memory form factor	240-pin DIMM	240-pin DIMM
Memory clock speed	667 MHz	667 MHz
Buffered memory type	Registered (buffered)	Registered (buffered)
Memory ranking	2	2
Memory voltage	1.5 V	1.5 V

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.