Product comparison · 2 memory modules

Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Quad Rank, x8 vs Kingston Technology 4GB, 800MHz, DDR2, ECC Reg w/ Parity CL6 DIMM Dual Rank, x4

Key differences

CAS latency
- 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Quad Rank, x8:5
- 4GB, 800MHz, DDR2, ECC Reg w/ Parity CL6 DIMM Dual Rank, x4:6

Differences highlightedShow differences only

Comparison of 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Quad Rank, x8, 4GB, 800MHz, DDR2, ECC Reg w/ Parity CL6 DIMM Dual Rank, x4
19 specifications	A Kingston Technology 4GB 667MHz DDR2 ECC Reg with Parity CL5 DIMM Quad Rank, x8 View product	B Kingston Technology 4GB, 800MHz, DDR2, ECC Reg w/ Parity CL6 DIMM Dual Rank, x4 View product
Features1 differ
Internal memory	4 GB	4 GB
Memory layout (modules x size)	1 x 4 GB	1 x 4 GB
Internal memory type	DDR2	DDR2
Memory form factor	240-pin DIMM	240-pin DIMM
ECC	Yes	Yes
CAS latencyDiffers	5	6
Memory bus	72 bit	72 bit
Buffered memory type	Registered (buffered)	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	512M X 72
Memory type	DDR2	DDR2
Lead plating	Gold	Gold
Other featuresidentical
Chips organisationKnown for one	Unknown — not stated by the source	X4
Bus clock rateKnown for one	Unknown — not stated by the source	800 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	4096 MB
Memory layoutKnown for one	Unknown — not stated by the source	1 x 4096 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.