Product comparison · 2 memory modules

Kingston Technology 2GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Single Rank, x4 vs Kingston Technology 4GB DDR2-667 Kit

Key differences

Internal memory
- 2GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Single Rank, x4:2 GB
- 4GB DDR2-667 Kit:4 GB
Memory layout (modules x size)
- 2GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Single Rank, x4:1 x 2 GB
- 4GB DDR2-667 Kit:2 x 2 GB
Memory ranking
- 2GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Single Rank, x4:1
- 4GB DDR2-667 Kit:2
Internal memory
- 2GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Single Rank, x4:2048 MB
- 4GB DDR2-667 Kit:4096 MB
Memory layout
- 2GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Single Rank, x4:1 x 2048 MB
- 4GB DDR2-667 Kit:2 x 2048 MB

Differences highlightedShow differences only

Comparison of 2GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Single Rank, x4, 4GB DDR2-667 Kit
20 specifications	A Kingston Technology 2GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Single Rank, x4 View product	B Kingston Technology 4GB DDR2-667 Kit View product
Features3 differ
Internal memoryDiffers	2 GB	4 GB
Memory layout (modules x size)Differs	1 x 2 GB	2 x 2 GB
Internal memory type	DDR2	DDR2
Memory form factor	240-pin DIMM	240-pin DIMM
ECC	Yes	Yes
CAS latency	5	5
Memory bus	72 bit	72 bit
Buffered memory type	Registered (buffered)	Registered (buffered)
Memory rankingDiffers	1	2
Memory voltage	1.8 V	1.8 V
Module configuration	256M X 72	256M X 72
Memory type	DDR2	DDR2
Lead plating	Gold	Gold
Other features2 differ
Chips organisation	X4	X4
CompatibilityKnown for one	Unknown — not stated by the source	A2018599 (DELL); A2018600 (DELL); A2320299 (DELL); A2320304 (DELL); A2320305 (DELL); A2320306 (DELL)
Bus clock rate	667 MHz	667 MHz
Error indication	Parity	Parity
Form factor	240-pin DIMM	240-pin DIMM
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.