Product comparison · 2 memory modules

HyperX 4GB (2 x 2GB) 667MHz DDR2 vs Kingston Technology ValueRAM 4GB (2 x 2GB)

7specifications compared
3differ
4identical
16known for one product only

Key differences

Memory form factor
- 4GB (2 x 2GB) 667MHz DDR2:200-pin SO-DIMM
- ValueRAM 4GB (2 x 2GB):240-pin DIMM
ECC
- 4GB (2 x 2GB) 667MHz DDR2:No
- ValueRAM 4GB (2 x 2GB):Yes
CAS latency
- 4GB (2 x 2GB) 667MHz DDR2:4
- ValueRAM 4GB (2 x 2GB):5

Side by side

Differences highlightedShow differences only

Comparison of 4GB (2 x 2GB) 667MHz DDR2, ValueRAM 4GB (2 x 2GB)
23 specifications	A HyperX 4GB (2 x 2GB) 667MHz DDR2 View product	B Kingston Technology ValueRAM 4GB (2 x 2GB)View product
Features3 differ
Internal memory	4 GB	4 GB
Memory layout (modules x size)Known for one	2 x 2 GB	Unknown — not stated by the source
Internal memory type	DDR2	DDR2
Component forKnown for one	Laptop	Unknown — not stated by the source
Memory form factorDiffers	200-pin SO-DIMM	240-pin DIMM
ECCDiffers	No	Yes
CAS latencyDiffers	4	5
Memory clock speedKnown for one	667 MHz	Unknown — not stated by the source
Memory busKnown for one	64 bit	Unknown — not stated by the source
Buffered memory typeKnown for one	Unregistered (unbuffered)	Unknown — not stated by the source
Memory voltage	1.8 V	1.8 V
Module configurationKnown for one	256M x 64	Unknown — not stated by the source
Row cycle timeKnown for one	60 ns	Unknown — not stated by the source
Refresh row cycle timeKnown for one	127.5 ns	Unknown — not stated by the source
Row active timeKnown for one	70000 ns	Unknown — not stated by the source
Lead plating	Gold	Gold
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	667 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
Number of pinsKnown for one	200	Unknown — not stated by the source
Memory technologyKnown for one	PC2-5300	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.

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