Product comparison · 2 memory modules

HyperX Memory HyperX 512MB 750MHz DDR2 CL4 2pk vs Kingston Technology Memory ValueRam 256MB 400MHz DDR2 reg ECC CL3

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

Key differences

The HyperX Memory HyperX 512MB 750MHz DDR2 CL4 2pk has 1 more CAS latency than the Kingston Technology Memory ValueRam 256MB 400MHz DDR2 reg ECC CL3 (4 vs 3). The Kingston Technology Memory ValueRam 256MB 400MHz DDR2 reg ECC CL3 has 8 bit more memory bus than the HyperX Memory HyperX 512MB 750MHz DDR2 CL4 2pk (72 bit vs 64 bit). The HyperX Memory HyperX 512MB 750MHz DDR2 CL4 2pk has 0.1 V more memory voltage than the Kingston Technology Memory ValueRam 256MB 400MHz DDR2 reg ECC CL3 (1.9 V vs 1.8 V). Only the Kingston Technology Memory ValueRam 256MB 400MHz DDR2 reg ECC CL3 has ECC.

ECC
- Memory HyperX 512MB 750MHz DDR2 CL4 2pk:No
- Memory ValueRam 256MB 400MHz DDR2 reg ECC CL3:Yes
CAS latency
- Memory HyperX 512MB 750MHz DDR2 CL4 2pk:4
- Memory ValueRam 256MB 400MHz DDR2 reg ECC CL3:3
Memory bus
- Memory HyperX 512MB 750MHz DDR2 CL4 2pk:64 bit
- Memory ValueRam 256MB 400MHz DDR2 reg ECC CL3:72 bit
Memory voltage
- Memory HyperX 512MB 750MHz DDR2 CL4 2pk:1.9 V
- Memory ValueRam 256MB 400MHz DDR2 reg ECC CL3:1.8 V

Side by side

Differences highlightedShow differences only

Comparison of Memory HyperX 512MB 750MHz DDR2 CL4 2pk, Memory ValueRam 256MB 400MHz DDR2 reg ECC CL3
10 specifications	A HyperX Memory HyperX 512MB 750MHz DDR2 CL4 2pk View product	B Kingston Technology Memory ValueRam 256MB 400MHz DDR2 reg ECC CL3 View product
Features4 differ
Internal memory	0.25 GB	0.25 GB
Internal memory type	DDR2	DDR2
Memory form factor	240-pin DIMM	240-pin DIMM
ECCDiffers	No	Yes
CAS latencyDiffers	4	3
Memory busDiffers	64 bit	72 bit
Check width	8 bit	8 bit
Memory voltageDiffers	1.9 V	1.8 V
Lead plating	Gold	Gold
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 55 °C	Unknown — not stated by the source

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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