Product comparison · 2 memory modules

HyperX 4GB(2 x 2GB), PC2-6400, DDR2, DIMM 240-pin, 256M X 64, Non-ECC vs Kingston Technology 2GB DDR2-667 ECC DIMM

13specifications compared
9differ
4identical
5known for one product only

Key differences

The HyperX 4GB(2 x 2GB), PC2-6400, DDR2, DIMM 240-pin, 256M X 64, Non-ECC has 2 GB more internal memory than the Kingston Technology 2GB DDR2-667 ECC DIMM (4 GB vs 2 GB). The Kingston Technology 2GB DDR2-667 ECC DIMM has 8 bit more memory bus than the HyperX 4GB(2 x 2GB), PC2-6400, DDR2, DIMM 240-pin, 256M X 64, Non-ECC (72 bit vs 64 bit). The HyperX 4GB(2 x 2GB), PC2-6400, DDR2, DIMM 240-pin, 256M X 64, Non-ECC has 0.2 V more memory voltage than the Kingston Technology 2GB DDR2-667 ECC DIMM (2.0 V vs 1.8 V). Only the Kingston Technology 2GB DDR2-667 ECC DIMM has ECC. Module configuration: 256M X 64 on the HyperX 4GB(2 x 2GB), PC2-6400, DDR2, DIMM 240-pin, 256M X 64, Non-ECC, 256M X 72 on the Kingston Technology 2GB DDR2-667 ECC DIMM.

Internal memory
- 4GB(2 x 2GB), PC2-6400, DDR2, DIMM 240-pin, 256M X 64, Non-ECC:4 GB
- 2GB DDR2-667 ECC DIMM:2 GB
ECC
- 4GB(2 x 2GB), PC2-6400, DDR2, DIMM 240-pin, 256M X 64, Non-ECC:No
- 2GB DDR2-667 ECC DIMM:Yes
Memory bus
- 4GB(2 x 2GB), PC2-6400, DDR2, DIMM 240-pin, 256M X 64, Non-ECC:64 bit
- 2GB DDR2-667 ECC DIMM:72 bit
Memory voltage
- 4GB(2 x 2GB), PC2-6400, DDR2, DIMM 240-pin, 256M X 64, Non-ECC:2.0 V
- 2GB DDR2-667 ECC DIMM:1.8 V
Module configuration
- 4GB(2 x 2GB), PC2-6400, DDR2, DIMM 240-pin, 256M X 64, Non-ECC:256M X 64
- 2GB DDR2-667 ECC DIMM:256M X 72
Bus clock rate
- 4GB(2 x 2GB), PC2-6400, DDR2, DIMM 240-pin, 256M X 64, Non-ECC:800 MHz
- 2GB DDR2-667 ECC DIMM:667 MHz
Error indication
- 4GB(2 x 2GB), PC2-6400, DDR2, DIMM 240-pin, 256M X 64, Non-ECC:No
- 2GB DDR2-667 ECC DIMM:ECC
Internal memory
- 4GB(2 x 2GB), PC2-6400, DDR2, DIMM 240-pin, 256M X 64, Non-ECC:4096 MB
- 2GB DDR2-667 ECC DIMM:2048 MB

Side by side

Differences highlightedShow differences only

Comparison of 4GB(2 x 2GB), PC2-6400, DDR2, DIMM 240-pin, 256M X 64, Non-ECC, 2GB DDR2-667 ECC DIMM
18 specifications	A HyperX 4GB(2 x 2GB), PC2-6400, DDR2, DIMM 240-pin, 256M X 64, Non-ECC View product	B Kingston Technology 2GB DDR2-667 ECC DIMM View product
Features5 differ
Internal memoryDiffers	4 GB	2 GB
Memory layout (modules x size)Known for one	Unknown — not stated by the source	1 x 2 GB
Internal memory type	DDR2	DDR2
ECCDiffers	No	Yes
CAS latency	5	5
Memory busDiffers	64 bit	72 bit
Buffered memory type	Unregistered (unbuffered)	Unregistered (unbuffered)
Memory voltageDiffers	2.0 V	1.8 V
Module configurationDiffers	256M X 64	256M X 72
Memory typeKnown for one	Unknown — not stated by the source	DDR2
Lead plating	Gold	Gold
Memory form factorKnown for one	240-pin DIMM	Unknown — not stated by the source
Memory clock speedKnown for one	800 MHz	Unknown — not stated by the source
Other features4 differ
Bus clock rateDiffers	800 MHz	667 MHz
Error indicationDiffers	No	ECC
Form factorKnown for one	Unknown — not stated by the source	240-pin DIMM
Internal memoryDiffers	4096 MB	2048 MB
Memory layoutDiffers	2 x 2048 MB	1 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.

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