Product comparison · 2 memory modules

HyperX 2GB 1066MHz DDR2 Non-ECC DIMM (Kit of 2) vs Kingston Technology 1GB 400MHz DDR Non-ECC CL3 (3-3-3) DIMM (Kit of 2)

Key differences

Internal memory
- 2GB 1066MHz DDR2 Non-ECC DIMM (Kit of 2):2 GB
- 1GB 400MHz DDR Non-ECC CL3 (3-3-3) DIMM (Kit of 2):1 GB
Internal memory type
- 2GB 1066MHz DDR2 Non-ECC DIMM (Kit of 2):DDR2
- 1GB 400MHz DDR Non-ECC CL3 (3-3-3) DIMM (Kit of 2):DDR
Memory form factor
- 2GB 1066MHz DDR2 Non-ECC DIMM (Kit of 2):240-pin DIMM
- 1GB 400MHz DDR Non-ECC CL3 (3-3-3) DIMM (Kit of 2):184-pin DIMM
CAS latency
- 2GB 1066MHz DDR2 Non-ECC DIMM (Kit of 2):5
- 1GB 400MHz DDR Non-ECC CL3 (3-3-3) DIMM (Kit of 2):3
Memory voltage
- 2GB 1066MHz DDR2 Non-ECC DIMM (Kit of 2):2.2 V
- 1GB 400MHz DDR Non-ECC CL3 (3-3-3) DIMM (Kit of 2):2.6 V

Differences highlightedShow differences only

Comparison of 2GB 1066MHz DDR2 Non-ECC DIMM (Kit of 2), 1GB 400MHz DDR Non-ECC CL3 (3-3-3) DIMM (Kit of 2)
22 specifications	A HyperX 2GB 1066MHz DDR2 Non-ECC DIMM (Kit of 2)View product	B Kingston Technology 1GB 400MHz DDR Non-ECC CL3 (3-3-3) DIMM (Kit of 2)View product
Features5 differ
Internal memoryDiffers	2 GB	1 GB
Internal memory typeDiffers	DDR2	DDR
Memory form factorDiffers	240-pin DIMM	184-pin DIMM
ECC	No	No
CAS latencyDiffers	5	3
Memory clock speedKnown for one	1066 MHz	Unknown — not stated by the source
Memory bus	64 bit	64 bit
Check widthKnown for one	8 bit	Unknown — not stated by the source
Buffered memory type	Unregistered (unbuffered)	Unregistered (unbuffered)
Memory voltageDiffers	2.2 V	2.6 V
Module configurationKnown for one	128M X 64	Unknown — not stated by the source
Row cycle timeKnown for one	51.5 ns	Unknown — not stated by the source
Lead plating	Gold	Gold
Memory layout (modules x size)Known for one	Unknown — not stated by the source	2 x 0.5 GB
Component forKnown for one	Unknown — not stated by the source	PC/Server
Memory typeKnown for one	Unknown — not stated by the source	DDR
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 55 °C	Unknown — not stated by the source
Other featuresidentical
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	2048 MB	Unknown — not stated by the source
Memory layoutKnown for one	2 x 1024 MB	Unknown — not stated by the source
Chips organisationKnown for one	Unknown — not stated by the source	X8

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.