Product comparison · 2 memory modules

Kingston Technology 2GB 667MHz vs Kingston Technology 4GB 667MHz Kit

Key differences

Internal memory
- 2GB 667MHz:2 GB
- 4GB 667MHz Kit:4 GB
Memory layout (modules x size)
- 2GB 667MHz:1 x 2 GB
- 4GB 667MHz Kit:2 x 2 GB
Memory bus
- 2GB 667MHz:64 bit
- 4GB 667MHz Kit:72 bit
Buffered memory type
- 2GB 667MHz:Unregistered (unbuffered)
- 4GB 667MHz Kit:Registered (buffered)
Module configuration
- 2GB 667MHz:256M X 64
- 4GB 667MHz Kit:256M X 72
Error indication
- 2GB 667MHz:No
- 4GB 667MHz Kit:ECC
Internal memory
- 2GB 667MHz:2048 MB
- 4GB 667MHz Kit:4096 MB
Memory layout
- 2GB 667MHz:1 x 2048 MB
- 4GB 667MHz Kit:2 x 2048 MB

Differences highlightedShow differences only

Comparison of 2GB 667MHz, 4GB 667MHz Kit
18 specifications	A Kingston Technology 2GB 667MHz View product	B Kingston Technology 4GB 667MHz Kit View product
Features5 differ
Internal memoryDiffers	2 GB	4 GB
Memory layout (modules x size)Differs	1 x 2 GB	2 x 2 GB
Memory form factorKnown for one	240-pin DIMM	Unknown — not stated by the source
Memory busDiffers	64 bit	72 bit
Buffered memory typeDiffers	Unregistered (unbuffered)	Registered (buffered)
Module configurationDiffers	256M X 64	256M X 72
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 features4 differ
CompatibilityDiffers	43R2002 (Lenovo); 73P4985 (IBM); 30R5127 (Lenovo); 41X4257 (Lenovo)	S26361-F3263-L523 (Fujitsu); S26361-F3263-L623 (Fujitsu)
Error indicationDiffers	No	ECC
Internal memoryDiffers	2048 MB	4096 MB
Memory layoutDiffers	1 x 2048 MB	2 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.