Product comparison · 2 memory modules

HyperX 4GB (2 x 2GB) 667MHz DDR2 vs Kingston Technology 1GB DDR2-800

13specifications compared
7differ
6identical
14known for one product only

Key differences

Internal memory
- 4GB (2 x 2GB) 667MHz DDR2:4 GB
- 1GB DDR2-800:1 GB
Memory layout (modules x size)
- 4GB (2 x 2GB) 667MHz DDR2:2 x 2 GB
- 1GB DDR2-800:1 x 1 GB
CAS latency
- 4GB (2 x 2GB) 667MHz DDR2:4
- 1GB DDR2-800:6
Module configuration
- 4GB (2 x 2GB) 667MHz DDR2:256M x 64
- 1GB DDR2-800:128M X 64
Bus clock rate
- 4GB (2 x 2GB) 667MHz DDR2:667 MHz
- 1GB DDR2-800:800 MHz
Internal memory
- 4GB (2 x 2GB) 667MHz DDR2:4096 MB
- 1GB DDR2-800:1024 MB
Memory layout
- 4GB (2 x 2GB) 667MHz DDR2:2 x 2048 MB
- 1GB DDR2-800:1 x 1024 MB

Side by side

Differences highlightedShow differences only

Comparison of 4GB (2 x 2GB) 667MHz DDR2, 1GB DDR2-800
27 specifications	A HyperX 4GB (2 x 2GB) 667MHz DDR2 View product	B Kingston Technology 1GB DDR2-800 View product
Features4 differ
Internal memoryDiffers	4 GB	1 GB
Memory layout (modules x size)Differs	2 x 2 GB	1 x 1 GB
Internal memory type	DDR2	DDR2
Component forKnown for one	Laptop	Unknown — not stated by the source
Memory form factor	200-pin SO-DIMM	200-pin SO-DIMM
ECCKnown for one	No	Unknown — not stated by the source
CAS latencyDiffers	4	6
Memory clock speedKnown for one	667 MHz	Unknown — not stated by the source
Memory bus	64 bit	64 bit
Buffered memory type	Unregistered (unbuffered)	Unregistered (unbuffered)
Memory voltage	1.8 V	1.8 V
Module configurationDiffers	256M x 64	128M X 64
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 platingKnown for one	Gold	Unknown — not stated by the source
Memory typeKnown for one	Unknown — not stated by the source	DDR2
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 55 °C	Unknown — not stated by the source
Other features3 differ
Bus clock rateDiffers	667 MHz	800 MHz
Error indication	No	No
Internal memoryDiffers	4096 MB	1024 MB
Memory layoutDiffers	2 x 2048 MB	1 x 1024 MB
Number of pinsKnown for one	200	Unknown — not stated by the source
Memory technologyKnown for one	PC2-5300	Unknown — not stated by the source
CompatibilityKnown for one	Unknown — not stated by the source	451398-001 (HP); 480860-001 (HP); 482168-001 (HP); 482168-002 (HP); 482168-003 (HP); 482168-004 (HP); 484267-002 (HP); 484380-001 (HP); 485032-004 (HP); 493194-001 (HP); 496110-001 (HP); 506060-001 (HP); 506932-001 (HP); 536427-001 (HP); GM254AA (HP); KT292AA (HP); KT292ET (HP)
Form factorKnown for one	Unknown — not stated by the source	200-pin SODIMM
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	67.6 mm

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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