Product comparison · 2 memory modules

Kingston Technology 2GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4 vs Kingston Technology Memory 1GB 333MHz DDR ECC CL2.5 DUAL x4

Key differences

Internal memory
- 2GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4:2 GB
- Memory 1GB 333MHz DDR ECC CL2.5 DUAL x4:1 GB
Internal memory type
- 2GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4:DDR2
- Memory 1GB 333MHz DDR ECC CL2.5 DUAL x4:DDR
Memory form factor
- 2GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4:240-pin DIMM
- Memory 1GB 333MHz DDR ECC CL2.5 DUAL x4:184-Pin DIMM
CAS latency
- 2GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4:3
- Memory 1GB 333MHz DDR ECC CL2.5 DUAL x4:2.5
Memory voltage
- 2GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4:1.8 V
- Memory 1GB 333MHz DDR ECC CL2.5 DUAL x4:2.5 V

Differences highlightedShow differences only

Comparison of 2GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4, Memory 1GB 333MHz DDR ECC CL2.5 DUAL x4
10 specifications	A Kingston Technology 2GB 400MHz DDR2 ECC Registered CL3 DIMM Dual Rank, x4 View product	B Kingston Technology Memory 1GB 333MHz DDR ECC CL2.5 DUAL x4 View product
Features5 differ
Internal memoryDiffers	2 GB	1 GB
Internal memory typeDiffers	DDR2	DDR
Memory form factorDiffers	240-pin DIMM	184-Pin DIMM
CAS latencyDiffers	3	2.5
Memory voltageDiffers	1.8 V	2.5 V
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.