Product comparison · 2 memory modules

HyperX 4GB(2 x 2GB), 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM vs Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x8

Key differences

ECC
- 4GB(2 x 2GB), 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM:No
- 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x8:Yes
Memory bus
- 4GB(2 x 2GB), 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM:64 bit
- 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x8:72 bit
Buffered memory type
- 4GB(2 x 2GB), 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM:Unregistered (unbuffered)
- 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x8:Registered (buffered)
Memory voltage
- 4GB(2 x 2GB), 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM:2.2 V
- 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x8:1.8 V

Differences highlightedShow differences only

Comparison of 4GB(2 x 2GB), 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM, 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x8
19 specifications	A HyperX 4GB(2 x 2GB), 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM View product	B Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x8 View product
Features4 differ
ECCDiffers	No	Yes
Memory clock speedKnown for one	1066 MHz	Unknown — not stated by the source
Memory busDiffers	64 bit	72 bit
Buffered memory typeDiffers	Unregistered (unbuffered)	Registered (buffered)
Memory rankingKnown for one	2	Unknown — not stated by the source
Memory voltageDiffers	2.2 V	1.8 V
Module configurationKnown for one	256M X 64	Unknown — not stated by the source
Memory layout (modules x size)Known for one	Unknown — not stated by the source	1 x 4 GB
Memory typeKnown for one	Unknown — not stated by the source	DDR2
Other featuresidentical
Chips organisationKnown for one	X8	Unknown — not stated by the source
Bus clock rateKnown for one	1066 MHz	Unknown — not stated by the source
Error indicationKnown for one	No	Unknown — not stated by the source
Internal memoryKnown for one	4096 MB	Unknown — not stated by the source
Memory layoutKnown for one	2 x 2048 MB	Unknown — not stated by the source

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.