Product comparison · 2 memory modules

Kingston Technology 1GB DDR2-667 ECC DIMM vs Kingston Technology 2GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Single Rank, x4

Key differences

Internal memory
- 1GB DDR2-667 ECC DIMM:1 GB
- 2GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Single Rank, x4:2 GB
Memory layout (modules x size)
- 1GB DDR2-667 ECC DIMM:1 x 1 GB
- 2GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Single Rank, x4:1 x 2 GB
ECC
- 1GB DDR2-667 ECC DIMM:Yes
- 2GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Single Rank, x4:No
Buffered memory type
- 1GB DDR2-667 ECC DIMM:Unregistered (unbuffered)
- 2GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Single Rank, x4:Registered (buffered)

Differences highlightedShow differences only

Comparison of 1GB DDR2-667 ECC DIMM, 2GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Single Rank, x4
15 specifications	A Kingston Technology 1GB DDR2-667 ECC DIMM View product	B Kingston Technology 2GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Single Rank, x4 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 factorKnown for one	Unknown — not stated by the source	240-pin DIMM
ECCDiffers	Yes	No
CAS latencyKnown for one	Unknown — not stated by the source	5
Memory bus	72 bit	72 bit
Buffered memory typeDiffers	Unregistered (unbuffered)	Registered (buffered)
Memory voltageKnown for one	Unknown — not stated by the source	1.8 V
Module configurationKnown for one	Unknown — not stated by the source	256M X 72
Memory type	DDR2	DDR2
Lead plating	Gold	Gold
Other featuresidentical
Chips organisationKnown for one	Unknown — not stated by the source	X4
Bus clock rateKnown for one	Unknown — not stated by the source	667 MHz
Form factorKnown for one	Unknown — not stated by the source	240-pin DIMM

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.