Product comparison · 2 memory modules

HyperX 1GB 1066MHz DDR2 Non-ECC DIMM (Kit x2) vs Kingston Technology 1GB 400MHz DDR Non-ECC CL3 (3-3-3) DIMM (Kit of 2)

Key differences

Internal memory type
- 1GB 1066MHz DDR2 Non-ECC DIMM (Kit x2):DDR2
- 1GB 400MHz DDR Non-ECC CL3 (3-3-3) DIMM (Kit of 2):DDR
Memory form factor
- 1GB 1066MHz DDR2 Non-ECC DIMM (Kit x2):240-pin DIMM
- 1GB 400MHz DDR Non-ECC CL3 (3-3-3) DIMM (Kit of 2):184-pin DIMM
CAS latency
- 1GB 1066MHz DDR2 Non-ECC DIMM (Kit x2):5
- 1GB 400MHz DDR Non-ECC CL3 (3-3-3) DIMM (Kit of 2):3
Memory voltage
- 1GB 1066MHz DDR2 Non-ECC DIMM (Kit x2):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 1GB 1066MHz DDR2 Non-ECC DIMM (Kit x2), 1GB 400MHz DDR Non-ECC CL3 (3-3-3) DIMM (Kit of 2)
17 specifications	A HyperX 1GB 1066MHz DDR2 Non-ECC DIMM (Kit x2)View product	B Kingston Technology 1GB 400MHz DDR Non-ECC CL3 (3-3-3) DIMM (Kit of 2)View product
Features4 differ
Internal memory	1 GB	1 GB
Memory layout (modules x size)	2 x 0.5 GB	2 x 0.5 GB
Internal memory typeDiffers	DDR2	DDR
Component for	PC/Server	PC/Server
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
Memory voltageDiffers	2.2 V	2.6 V
Row cycle timeKnown for one	51.5 ns	Unknown — not stated by the source
Lead plating	Gold	Gold
Buffered memory typeKnown for one	Unknown — not stated by the source	Unregistered (unbuffered)
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
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.