Product comparison · 2 memory modules

Kingston Technology 4GB 667MHz DDR2 Non-ECC CL5 SODIMM vs Kingston Technology 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4

Key differences

Internal memory
- 4GB 667MHz DDR2 Non-ECC CL5 SODIMM:4 GB
- 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4:8 GB
Memory form factor
- 4GB 667MHz DDR2 Non-ECC CL5 SODIMM:200-pin SO-DIMM
- 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4:240-pin DIMM
ECC
- 4GB 667MHz DDR2 Non-ECC CL5 SODIMM:No
- 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4:Yes

Differences highlightedShow differences only

Comparison of 4GB 667MHz DDR2 Non-ECC CL5 SODIMM, 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4
19 specifications	A Kingston Technology 4GB 667MHz DDR2 Non-ECC CL5 SODIMM View product	B Kingston Technology 8GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Dual Rank, x4 View product
Features3 differ
Internal memoryDiffers	4 GB	8 GB
Memory layout (modules x size)Known for one	Unknown — not stated by the source	1 x 8 GB
Internal memory type	DDR2	DDR2
Memory form factorDiffers	200-pin SO-DIMM	240-pin DIMM
ECCDiffers	No	Yes
CAS latency	5	5
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 rankingKnown for one	Unknown — not stated by the source	2
Memory voltage	1.8 V	1.8 V
Module configurationKnown for one	Unknown — not stated by the source	1024M X 72
Memory typeKnown for one	Unknown — not stated by the source	DDR2
Lead platingKnown for one	Unknown — not stated by the source	Gold
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	133.3 mm
Other featuresidentical
Bus clock rateKnown for one	Unknown — not stated by the source	667 MHz
Error indicationKnown for one	Unknown — not stated by the source	Parity
Form factorKnown for one	Unknown — not stated by the source	240-pin DIMM
Internal memoryKnown for one	Unknown — not stated by the source	8192 MB
Memory layoutKnown for one	Unknown — not stated by the source	1 x 8192 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.