Product comparison · 2 memory modules

Kingston Technology 1GB DDR2-667 DIMM vs Kingston Technology 2GB 400MHz DDR2 Non-ECC CL3 DIMM

Key differences

Internal memory
- 1GB DDR2-667 DIMM:1 GB
- 2GB 400MHz DDR2 Non-ECC CL3 DIMM:2 GB
Memory layout (modules x size)
- 1GB DDR2-667 DIMM:1 x 1 GB
- 2GB 400MHz DDR2 Non-ECC CL3 DIMM:1 x 2 GB
CAS latency
- 1GB DDR2-667 DIMM:5
- 2GB 400MHz DDR2 Non-ECC CL3 DIMM:3
Module configuration
- 1GB DDR2-667 DIMM:128M X 64
- 2GB 400MHz DDR2 Non-ECC CL3 DIMM:256M X 64
Bus clock rate
- 1GB DDR2-667 DIMM:667 MHz
- 2GB 400MHz DDR2 Non-ECC CL3 DIMM:400 MHz

Differences highlightedShow differences only

Comparison of 1GB DDR2-667 DIMM, 2GB 400MHz DDR2 Non-ECC CL3 DIMM
19 specifications	A Kingston Technology 1GB DDR2-667 DIMM View product	B Kingston Technology 2GB 400MHz DDR2 Non-ECC CL3 DIMM View product
Features4 differ
Internal memoryDiffers	1 GB	2 GB
Memory layout (modules x size)Differs	1 x 1 GB	1 x 2 GB
Internal memory type	DDR2	DDR2
Memory form factor	240-pin DIMM	240-pin DIMM
ECC	No	No
CAS latencyDiffers	5	3
Memory bus	64 bit	64 bit
Buffered memory type	Unregistered (unbuffered)	Unregistered (unbuffered)
Memory voltage	1.8 V	1.8 V
Module configurationDiffers	128M X 64	256M X 64
Memory type	DDR2	DDR2
Check widthKnown for one	Unknown — not stated by the source	8 bit
Lead platingKnown for one	Unknown — not stated by the source	Gold
Weight & dimensionsidentical
WidthKnown for one	133.3 mm	Unknown — not stated by the source
Other features1 differ
Bus clock rateDiffers	667 MHz	400 MHz
Error indicationKnown for one	No	Unknown — not stated by the source
Form factor	240-pin DIMM	240-pin DIMM
Internal memoryKnown for one	1024 MB	Unknown — not stated by the source
Memory layoutKnown for one	1 x 1024 MB	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.