Product comparison · 2 memory modules

HP 4Gb DDR2 SDRAM 667MHz ECC vs Kingston Technology 2GB 800MHz DDR2 ECC Reg with Parity CL6 DIMM Dual Rank, x8

Key differences

Internal memory
- 4Gb DDR2 SDRAM 667MHz ECC:4 GB
- 2GB 800MHz DDR2 ECC Reg with Parity CL6 DIMM Dual Rank, x8:2 GB
Memory layout (modules x size)
- 4Gb DDR2 SDRAM 667MHz ECC:2 x 2 GB
- 2GB 800MHz DDR2 ECC Reg with Parity CL6 DIMM Dual Rank, x8:1 x 2 GB
Memory form factor
- 4Gb DDR2 SDRAM 667MHz ECC:200-pin SO-DIMM
- 2GB 800MHz DDR2 ECC Reg with Parity CL6 DIMM Dual Rank, x8:240-pin DIMM
Memory type
- 4Gb DDR2 SDRAM 667MHz ECC:PC2-5300
- 2GB 800MHz DDR2 ECC Reg with Parity CL6 DIMM Dual Rank, x8:DDR2

Differences highlightedShow differences only

Comparison of 4Gb DDR2 SDRAM 667MHz ECC, 2GB 800MHz DDR2 ECC Reg with Parity CL6 DIMM Dual Rank, x8
20 specifications	A HP 4Gb DDR2 SDRAM 667MHz ECC View product	B Kingston Technology 2GB 800MHz DDR2 ECC Reg with Parity CL6 DIMM Dual Rank, x8 View product
Features4 differ
Internal memoryDiffers	4 GB	2 GB
Memory layout (modules x size)Differs	2 x 2 GB	1 x 2 GB
Internal memory type	DDR2	DDR2
Memory form factorDiffers	200-pin SO-DIMM	240-pin DIMM
ECC	Yes	Yes
CAS latencyKnown for one	Unknown — not stated by the source	6
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 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
Memory typeDiffers	PC2-5300	DDR2
Lead platingKnown for one	Unknown — not stated by the source	Gold
Memory clock speedKnown for one	667 MHz	Unknown — not stated by the source
Other featuresidentical
Chips organisationKnown for one	Unknown — not stated by the source	X8
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	2048 MB
Memory layoutKnown for one	Unknown — not stated by the source	1 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.