Product comparison · 2 memory modules

Kingston Technology 4GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Dual Rank, x4 vs Kingston Technology 8GB DDR2-667 Kit (Chipkill)

Key differences

Internal memory
- 4GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Dual Rank, x4:4 GB
- 8GB DDR2-667 Kit (Chipkill):8 GB
Memory layout (modules x size)
- 4GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Dual Rank, x4:1 x 4 GB
- 8GB DDR2-667 Kit (Chipkill):2 x 4 GB
Internal memory
- 4GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Dual Rank, x4:4096 MB
- 8GB DDR2-667 Kit (Chipkill):8192 MB
Memory layout
- 4GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Dual Rank, x4:1 x 4096 MB
- 8GB DDR2-667 Kit (Chipkill):2 x 4096 MB

Differences highlightedShow differences only

Comparison of 4GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Dual Rank, x4, 8GB DDR2-667 Kit (Chipkill)
20 specifications	A Kingston Technology 4GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Dual Rank, x4 View product	B Kingston Technology 8GB DDR2-667 Kit (Chipkill)View product
Features2 differ
Internal memoryDiffers	4 GB	8 GB
Memory layout (modules x size)Differs	1 x 4 GB	2 x 4 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
CAS latency	5	5
Memory bus	72 bit	72 bit
Buffered memory type	Registered (buffered)	Registered (buffered)
Memory ranking	2	2
Memory voltage	1.8 V	1.8 V
Module configuration	512M X 72	512M X 72
Memory type	DDR2	DDR2
Lead plating	Gold	Gold
Other features2 differ
Chips organisation	X4	X4
Bus clock rate	667 MHz	667 MHz
Error indication	ECC	ECC
Form factor	240-pin DIMM	240-pin DIMM
Internal memoryDiffers	4096 MB	8192 MB
Memory layoutDiffers	1 x 4096 MB	2 x 4096 MB
CompatibilityKnown for one	Unknown — not stated by the source	39M5795 (IBM); 39M5797 (IBM); 41Y2845 (IBM); 40T6602 (IBM)

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.