Product comparison · 2 memory modules

Kingston Technology 4GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Quad Rank, x8 1.55V vs Kingston Technology 4GB, 800MHz, DDR2, ECC Reg w/ Parity CL6 DIMM Dual Rank, x4

8specifications compared
2differ
6identical
11known for one product only

Key differences

The Kingston Technology 4GB, 800MHz, DDR2, ECC Reg w/ Parity CL6 DIMM Dual Rank, x4 has 1 more CAS latency than the Kingston Technology 4GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Quad Rank, x8 1.55V (6 vs 5). The Kingston Technology 4GB, 800MHz, DDR2, ECC Reg w/ Parity CL6 DIMM Dual Rank, x4 has 0.25 V more memory voltage than the Kingston Technology 4GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Quad Rank, x8 1.55V (1.8 V vs 1.55 V).

CAS latency
- 4GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Quad Rank, x8 1.55V:5
- 4GB, 800MHz, DDR2, ECC Reg w/ Parity CL6 DIMM Dual Rank, x4:6
Memory voltage
- 4GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Quad Rank, x8 1.55V:1.55 V
- 4GB, 800MHz, DDR2, ECC Reg w/ Parity CL6 DIMM Dual Rank, x4:1.8 V

Side by side

Differences highlightedShow differences only

Comparison of 4GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Quad Rank, x8 1.55V, 4GB, 800MHz, DDR2, ECC Reg w/ Parity CL6 DIMM Dual Rank, x4
19 specifications	A Kingston Technology 4GB 667MHz DDR2 ECC Fully Buffered CL5 DIMM Quad Rank, x8 1.55V View product	B Kingston Technology 4GB, 800MHz, DDR2, ECC Reg w/ Parity CL6 DIMM Dual Rank, x4 View product
Features2 differ
CAS latencyDiffers	5	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 voltageDiffers	1.55 V	1.8 V
Module configurationKnown for one	Unknown — not stated by the source	512M X 72
Memory typeKnown for one	Unknown — not stated by the source	DDR2
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.

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