Product comparison · 2 memory modules

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

Key differences

Internal memory
- 1GB 333MHz DDR ECC Registered CL2.5 DIMM Dual Rank, x8:1 GB
- 512MB 400MHz DDR ECC Registered CL3 (3-3-3) DIMM Single Rank, x8:0.5 GB
Memory layout (modules x size)
- 1GB 333MHz DDR ECC Registered CL2.5 DIMM Dual Rank, x8:1 x 1 GB
- 512MB 400MHz DDR ECC Registered CL3 (3-3-3) DIMM Single Rank, x8:1 x 0.5 GB
CAS latency
- 1GB 333MHz DDR ECC Registered CL2.5 DIMM Dual Rank, x8:2.5
- 512MB 400MHz DDR ECC Registered CL3 (3-3-3) DIMM Single Rank, x8:3
Check width
- 1GB 333MHz DDR ECC Registered CL2.5 DIMM Dual Rank, x8:4 bit
- 512MB 400MHz DDR ECC Registered CL3 (3-3-3) DIMM Single Rank, x8:8 bit
Memory voltage
- 1GB 333MHz DDR ECC Registered CL2.5 DIMM Dual Rank, x8:2.5 V
- 512MB 400MHz DDR ECC Registered CL3 (3-3-3) DIMM Single Rank, x8:2.6 V

Differences highlightedShow differences only

Comparison of 1GB 333MHz DDR ECC Registered CL2.5 DIMM Dual Rank, x8, 512MB 400MHz DDR ECC Registered CL3 (3-3-3) DIMM Single Rank, x8
14 specifications	A Kingston Technology 1GB 333MHz DDR ECC Registered CL2.5 DIMM Dual Rank, x8 View product	B Kingston Technology 512MB 400MHz DDR ECC Registered CL3 (3-3-3) DIMM Single Rank, x8 View product
Features5 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	2.5	3
Memory bus	72 bit	72 bit
Check widthDiffers	4 bit	8 bit
Buffered memory type	Registered (buffered)	Registered (buffered)
Memory voltageDiffers	2.5 V	2.6 V
Memory type	DDR	DDR
Lead plating	Gold	Gold
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 70 °C	Unknown — not stated by the source
Other featuresidentical
Chips organisation	X8	X8

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.