Product comparison · 2 memory modules

HyperX 1GB(2 x 512MB), 1066MHz,SDRAM-DDR2, 2.2V, Gold, CL5 (5-5-5-15), DIMM 240-pin vs Kingston Technology 2GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Single Rank, x4

Key differences

Internal memory
- 1GB(2 x 512MB), 1066MHz,SDRAM-DDR2, 2.2V, Gold, CL5 (5-5-5-15), DIMM 240-pin:1 GB
- 2GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Single Rank, x4:2 GB
ECC
- 1GB(2 x 512MB), 1066MHz,SDRAM-DDR2, 2.2V, Gold, CL5 (5-5-5-15), DIMM 240-pin:No
- 2GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Single Rank, x4:Yes
Memory voltage
- 1GB(2 x 512MB), 1066MHz,SDRAM-DDR2, 2.2V, Gold, CL5 (5-5-5-15), DIMM 240-pin:2.2 V
- 2GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Single Rank, x4:1.8 V

Differences highlightedShow differences only

Comparison of 1GB(2 x 512MB), 1066MHz,SDRAM-DDR2, 2.2V, Gold, CL5 (5-5-5-15), DIMM 240-pin, 2GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Single Rank, x4
20 specifications	A HyperX 1GB(2 x 512MB), 1066MHz,SDRAM-DDR2, 2.2V, Gold, CL5 (5-5-5-15), DIMM 240-pin View product	B Kingston Technology 2GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Single Rank, x4 View product
Features3 differ
Internal memoryDiffers	1 GB	2 GB
Memory layout (modules x size)Known for one	Unknown — not stated by the source	1 x 2 GB
ECCDiffers	No	Yes
Memory busKnown for one	Unknown — not stated by the source	72 bit
Buffered memory typeKnown for one	Unknown — not stated by the source	Registered (buffered)
Memory rankingKnown for one	Unknown — not stated by the source	1
Memory voltageDiffers	2.2 V	1.8 V
Module configurationKnown for one	Unknown — not stated by the source	256M X 72
Memory typeKnown for one	Unknown — not stated by the source	DDR2
Memory clock speedKnown for one	1066 MHz	Unknown — not stated by the source
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
Error indicationKnown for one	Unknown — not stated by the source	Parity
Form factorKnown for one	Unknown — not stated by the source	240-pin DIMM
Internal memoryKnown for one	Unknown — not stated by the source	2048 MB
Memory layoutKnown for one	Unknown — not stated by the source	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.