Product comparison · 2 memory modules

Kingston Technology 1GB 400MHz DDR ECC Registered CL3 (3-3-3) DIMM Dual Rank, x8 vs Kingston Technology 512MB 333MHz DDR ECC Registered CL2.5 DIMM Single Rank, x8

Key differences

Internal memory
- 1GB 400MHz DDR ECC Registered CL3 (3-3-3) DIMM Dual Rank, x8:1 GB
- 512MB 333MHz DDR ECC Registered CL2.5 DIMM Single Rank, x8:0.5 GB
Memory layout (modules x size)
- 1GB 400MHz DDR ECC Registered CL3 (3-3-3) DIMM Dual Rank, x8:1 x 1 GB
- 512MB 333MHz DDR ECC Registered CL2.5 DIMM Single Rank, x8:1 x 0.5 GB
CAS latency
- 1GB 400MHz DDR ECC Registered CL3 (3-3-3) DIMM Dual Rank, x8:3
- 512MB 333MHz DDR ECC Registered CL2.5 DIMM Single Rank, x8:2.5
Memory voltage
- 1GB 400MHz DDR ECC Registered CL3 (3-3-3) DIMM Dual Rank, x8:2.6 V
- 512MB 333MHz DDR ECC Registered CL2.5 DIMM Single Rank, x8:2.5 V

Differences highlightedShow differences only

Comparison of 1GB 400MHz DDR ECC Registered CL3 (3-3-3) DIMM Dual Rank, x8, 512MB 333MHz DDR ECC Registered CL2.5 DIMM Single Rank, x8
14 specifications	A Kingston Technology 1GB 400MHz DDR ECC Registered CL3 (3-3-3) DIMM Dual Rank, x8 View product	B Kingston Technology 512MB 333MHz DDR ECC Registered CL2.5 DIMM Single Rank, x8 View product
Features4 differ
Internal memoryDiffers	1 GB	0.5 GB
Memory layout (modules x size)Differs	1 x 1 GB	1 x 0.5 GB
Internal memory type	DDR	DDR
Memory form factor	184-pin DIMM	184-Pin DIMM
ECC	Yes	Yes
CAS latencyDiffers	3	2.5
Memory bus	72 bit	72 bit
Check width	8 bit	8 bit
Buffered memory type	Registered (buffered)	Registered (buffered)
Memory voltageDiffers	2.6 V	2.5 V
Memory type	DDR	DDR
Lead plating	Gold	Gold
Other featuresidentical
Chips organisationKnown for one	X8	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 70 °C

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.