Product comparison · 2 memory modules

Kingston Technology 2GB 1066MHz DDR3 Non-ECC CL7 SODIMM vs Kingston Technology 4GB DDR2-667 Low Power Kit

Key differences

Internal memory
- 2GB 1066MHz DDR3 Non-ECC CL7 SODIMM:2 GB
- 4GB DDR2-667 Low Power Kit:4 GB
Memory layout (modules x size)
- 2GB 1066MHz DDR3 Non-ECC CL7 SODIMM:1 x 2 GB
- 4GB DDR2-667 Low Power Kit:2 x 2 GB
Internal memory type
- 2GB 1066MHz DDR3 Non-ECC CL7 SODIMM:DDR3
- 4GB DDR2-667 Low Power Kit:DRAM
Memory form factor
- 2GB 1066MHz DDR3 Non-ECC CL7 SODIMM:204-pin SO-DIMM
- 4GB DDR2-667 Low Power Kit:240-pin DIMM
CAS latency
- 2GB 1066MHz DDR3 Non-ECC CL7 SODIMM:7
- 4GB DDR2-667 Low Power Kit:5
Memory bus
- 2GB 1066MHz DDR3 Non-ECC CL7 SODIMM:64 bit
- 4GB DDR2-667 Low Power Kit:72 bit
Buffered memory type
- 2GB 1066MHz DDR3 Non-ECC CL7 SODIMM:Unregistered (unbuffered)
- 4GB DDR2-667 Low Power Kit:Registered (buffered)
Memory voltage
- 2GB 1066MHz DDR3 Non-ECC CL7 SODIMM:1.5 V
- 4GB DDR2-667 Low Power Kit:1.8 V

Differences highlightedShow differences only

Comparison of 2GB 1066MHz DDR3 Non-ECC CL7 SODIMM, 4GB DDR2-667 Low Power Kit
20 specifications	A Kingston Technology 2GB 1066MHz DDR3 Non-ECC CL7 SODIMM View product	B Kingston Technology 4GB DDR2-667 Low Power Kit View product
Features10 differ
Internal memoryDiffers	2 GB	4 GB
Memory layout (modules x size)Differs	1 x 2 GB	2 x 2 GB
Internal memory typeDiffers	DDR3	DRAM
Memory form factorDiffers	204-pin SO-DIMM	240-pin DIMM
CAS latencyDiffers	7	5
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 voltageDiffers	1.5 V	1.8 V
Module configurationDiffers	256M X 64	256M X 72
Memory typeDiffers	DDR3	DDR2
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	46C7419 (IBM); 40V6418 (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

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.