Product comparison · 2 memory modules

HyperX 4GB DDR3 1333MHz Kit vs Kingston Technology 8GB 667MHz DDR2 ECC KIT

6specifications compared
4differ
2identical
9known for one product only

Key differences

Internal memory
- 4GB DDR3 1333MHz Kit:4 GB
- 8GB 667MHz DDR2 ECC KIT:8 GB
Memory layout (modules x size)
- 4GB DDR3 1333MHz Kit:2 x 2 GB
- 8GB 667MHz DDR2 ECC KIT:4 x 2 GB
Internal memory type
- 4GB DDR3 1333MHz Kit:DDR3
- 8GB 667MHz DDR2 ECC KIT:DDR2
ECC
- 4GB DDR3 1333MHz Kit:No
- 8GB 667MHz DDR2 ECC KIT:Yes

Side by side

Differences highlightedShow differences only

Comparison of 4GB DDR3 1333MHz Kit, 8GB 667MHz DDR2 ECC KIT
15 specifications	A HyperX 4GB DDR3 1333MHz Kit View product	B Kingston Technology 8GB 667MHz DDR2 ECC KIT View product
Features4 differ
Internal memoryDiffers	4 GB	8 GB
Memory layout (modules x size)Differs	2 x 2 GB	4 x 2 GB
Internal memory typeDiffers	DDR3	DDR2
ECCDiffers	No	Yes
CAS latencyKnown for one	7	Unknown — not stated by the source
Memory clock speedKnown for one	1333 MHz	Unknown — not stated by the source
Memory voltageKnown for one	1.65 V	Unknown — not stated by the source
Row cycle timeKnown for one	49.5 ns	Unknown — not stated by the source
Row active timeKnown for one	36 ns	Unknown — not stated by the source
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 typeKnown for one	Unknown — not stated by the source	DDR2
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 85 °C	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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