Product comparison · 2 memory modules

Kingston Technology 2GB DDR2 DIMM kit vs Kingston Technology 4GB DDR2-667 Kit (Chipkill)

Key differences

Internal memory
- 2GB DDR2 DIMM kit:2 GB
- 4GB DDR2-667 Kit (Chipkill):4 GB
Memory layout (modules x size)
- 2GB DDR2 DIMM kit:2 x 1 GB
- 4GB DDR2-667 Kit (Chipkill):2 x 2 GB
Memory bus
- 2GB DDR2 DIMM kit:64 bit
- 4GB DDR2-667 Kit (Chipkill):72 bit
Buffered memory type
- 2GB DDR2 DIMM kit:Unregistered (unbuffered)
- 4GB DDR2-667 Kit (Chipkill):Registered (buffered)

Differences highlightedShow differences only

Comparison of 2GB DDR2 DIMM kit, 4GB DDR2-667 Kit (Chipkill)
23 specifications	A Kingston Technology 2GB DDR2 DIMM kit View product	B Kingston Technology 4GB DDR2-667 Kit (Chipkill)View product
Features4 differ
Internal memoryDiffers	2 GB	4 GB
Memory layout (modules x size)Differs	2 x 1 GB	2 x 2 GB
Memory busDiffers	64 bit	72 bit
Buffered memory typeDiffers	Unregistered (unbuffered)	Registered (buffered)
Memory rankingKnown for one	Unknown — not stated by the source	2
Memory voltageKnown for one	Unknown — not stated by the source	1.8 V
Module configurationKnown for one	Unknown — not stated by the source	256M X 72
Lead platingKnown for one	Unknown — not stated by the source	Gold
Component forKnown for one	PC/Server	Unknown — not stated by the source
ECCKnown for one	No	Unknown — not stated by the source
Other featuresidentical
Chips organisationKnown for one	Unknown — not stated by the source	X8
CompatibilityKnown for one	Unknown — not stated by the source	39M5789 (IBM); 39M5791 (IBM); 40T1474 (IBM)
Bus clock rateKnown for one	Unknown — not stated by the source	667 MHz
Error indicationKnown for one	Unknown — not stated by the source	ECC
Form factorKnown for one	Unknown — not stated by the source	240-pin DIMM
Internal memoryKnown for one	Unknown — not stated by the source	4096 MB
Memory layoutKnown for one	Unknown — not stated by the source	2 x 2048 MB
Start-up timeKnown for one	105 ms	Unknown — not stated by the source
Processor frequencyKnown for one	800 MHz	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.