Product comparison · 2 memory modules

HyperX 4GB(2 x 2GB), 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM vs Kingston Technology 1GB 1066MHz DDR3 ECC CL7 DIMM

Key differences

Internal memory
- 4GB(2 x 2GB), 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM:4 GB
- 1GB 1066MHz DDR3 ECC CL7 DIMM:1 GB
Internal memory type
- 4GB(2 x 2GB), 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM:DDR2
- 1GB 1066MHz DDR3 ECC CL7 DIMM:DDR3
ECC
- 4GB(2 x 2GB), 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM:No
- 1GB 1066MHz DDR3 ECC CL7 DIMM:Yes
CAS latency
- 4GB(2 x 2GB), 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM:5
- 1GB 1066MHz DDR3 ECC CL7 DIMM:7
Memory bus
- 4GB(2 x 2GB), 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM:64 bit
- 1GB 1066MHz DDR3 ECC CL7 DIMM:72 bit
Memory voltage
- 4GB(2 x 2GB), 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM:2.2 V
- 1GB 1066MHz DDR3 ECC CL7 DIMM:1.5 V

Differences highlightedShow differences only

Comparison of 4GB(2 x 2GB), 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM, 1GB 1066MHz DDR3 ECC CL7 DIMM
20 specifications	A HyperX 4GB(2 x 2GB), 1066MHz, DDR2, Non-ECC, CL5 (5-5-5-15), DIMM View product	B Kingston Technology 1GB 1066MHz DDR3 ECC CL7 DIMM View product
Features6 differ
Internal memoryDiffers	4 GB	1 GB
Internal memory typeDiffers	DDR2	DDR3
ECCDiffers	No	Yes
CAS latencyDiffers	5	7
Memory clock speedKnown for one	1066 MHz	Unknown — not stated by the source
Memory busDiffers	64 bit	72 bit
Memory rankingKnown for one	2	Unknown — not stated by the source
Memory voltageDiffers	2.2 V	1.5 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 1 GB
Memory typeKnown for one	Unknown — not stated by the source	DDR3
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
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 85 °C

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.