Product comparison · 2 memory modules

Kingston Technology 4GB 400MHz DDR2 ECC Registered CL3 DIMM (Kit of 2) Dual Rank, x4 vs Kingston Technology Memory 1GB 333MHz DDR ECC CL2.5 DUAL x4

9specifications compared
5differ
4identical
1known for one product only

Key differences

The Kingston Technology 4GB 400MHz DDR2 ECC Registered CL3 DIMM (Kit of 2) Dual Rank, x4 has 1 GB more internal memory than the Kingston Technology Memory 1GB 333MHz DDR ECC CL2.5 DUAL x4 (2 GB vs 1 GB). The Kingston Technology 4GB 400MHz DDR2 ECC Registered CL3 DIMM (Kit of 2) Dual Rank, x4 has 0.5 more CAS latency than the Kingston Technology Memory 1GB 333MHz DDR ECC CL2.5 DUAL x4 (3 vs 2.5). The Kingston Technology Memory 1GB 333MHz DDR ECC CL2.5 DUAL x4 has 0.7 V more memory voltage than the Kingston Technology 4GB 400MHz DDR2 ECC Registered CL3 DIMM (Kit of 2) Dual Rank, x4 (2.5 V vs 1.8 V). Internal memory type: DDR2 on the Kingston Technology 4GB 400MHz DDR2 ECC Registered CL3 DIMM (Kit of 2) Dual Rank, x4, DDR on the Kingston Technology Memory 1GB 333MHz DDR ECC CL2.5 DUAL x4. Memory form factor: 240-pin DIMM on the Kingston Technology 4GB 400MHz DDR2 ECC Registered CL3 DIMM (Kit of 2) Dual Rank, x4, 184-Pin DIMM on the Kingston Technology Memory 1GB 333MHz DDR ECC CL2.5 DUAL x4.

Internal memory
- 4GB 400MHz DDR2 ECC Registered CL3 DIMM (Kit of 2) Dual Rank, x4:2 GB
- Memory 1GB 333MHz DDR ECC CL2.5 DUAL x4:1 GB
Internal memory type
- 4GB 400MHz DDR2 ECC Registered CL3 DIMM (Kit of 2) Dual Rank, x4:DDR2
- Memory 1GB 333MHz DDR ECC CL2.5 DUAL x4:DDR
Memory form factor
- 4GB 400MHz DDR2 ECC Registered CL3 DIMM (Kit of 2) Dual Rank, x4:240-pin DIMM
- Memory 1GB 333MHz DDR ECC CL2.5 DUAL x4:184-Pin DIMM
CAS latency
- 4GB 400MHz DDR2 ECC Registered CL3 DIMM (Kit of 2) Dual Rank, x4:3
- Memory 1GB 333MHz DDR ECC CL2.5 DUAL x4:2.5
Memory voltage
- 4GB 400MHz DDR2 ECC Registered CL3 DIMM (Kit of 2) Dual Rank, x4:1.8 V
- Memory 1GB 333MHz DDR ECC CL2.5 DUAL x4:2.5 V

Side by side

Differences highlightedShow differences only

Comparison of 4GB 400MHz DDR2 ECC Registered CL3 DIMM (Kit of 2) Dual Rank, x4, Memory 1GB 333MHz DDR ECC CL2.5 DUAL x4
10 specifications	A Kingston Technology 4GB 400MHz DDR2 ECC Registered CL3 DIMM (Kit of 2) 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.

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