Product comparison · 2 memory modules

Kingston Technology 1GB 1066MHz DDR3 Non-ECC CL7 SODIMM vs Kingston Technology 4GB 667MHz DDR2 ECC CL5 DIMM

Key differences

Internal memory
- 1GB 1066MHz DDR3 Non-ECC CL7 SODIMM:1 GB
- 4GB 667MHz DDR2 ECC CL5 DIMM:4 GB
Internal memory type
- 1GB 1066MHz DDR3 Non-ECC CL7 SODIMM:DDR3
- 4GB 667MHz DDR2 ECC CL5 DIMM:DDR2
Memory form factor
- 1GB 1066MHz DDR3 Non-ECC CL7 SODIMM:204-pin SO-DIMM
- 4GB 667MHz DDR2 ECC CL5 DIMM:240-pin DIMM
ECC
- 1GB 1066MHz DDR3 Non-ECC CL7 SODIMM:No
- 4GB 667MHz DDR2 ECC CL5 DIMM:Yes
CAS latency
- 1GB 1066MHz DDR3 Non-ECC CL7 SODIMM:7
- 4GB 667MHz DDR2 ECC CL5 DIMM:5
Memory voltage
- 1GB 1066MHz DDR3 Non-ECC CL7 SODIMM:1.5 V
- 4GB 667MHz DDR2 ECC CL5 DIMM:1.8 V

Differences highlightedShow differences only

Comparison of 1GB 1066MHz DDR3 Non-ECC CL7 SODIMM, 4GB 667MHz DDR2 ECC CL5 DIMM
11 specifications	A Kingston Technology 1GB 1066MHz DDR3 Non-ECC CL7 SODIMM View product	B Kingston Technology 4GB 667MHz DDR2 ECC CL5 DIMM View product
Features6 differ
Internal memoryDiffers	1 GB	4 GB
Memory layout (modules x size)Known for one	1 x 1 GB	Unknown — not stated by the source
Internal memory typeDiffers	DDR3	DDR2
Memory form factorDiffers	204-pin SO-DIMM	240-pin DIMM
ECCDiffers	No	Yes
CAS latencyDiffers	7	5
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 voltageDiffers	1.5 V	1.8 V
Memory typeKnown for one	DDR3	Unknown — not stated by the source
Lead platingKnown for one	Gold	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.