Product comparison · 2 memory modules

HyperX Memory HyperX 1GB 750MHz DDR2 CL4 vs HyperX Memory HyperX 2GB 400MHz DDR 2pk

10specifications compared
7differ
3identical
1known for one product only

Key differences

The HyperX Memory HyperX 1GB 750MHz DDR2 CL4 has 1.5 more CAS latency than the HyperX Memory HyperX 2GB 400MHz DDR 2pk (4 vs 2.5). The HyperX Memory HyperX 2GB 400MHz DDR 2pk has 8 bit more memory bus than the HyperX Memory HyperX 1GB 750MHz DDR2 CL4 (72 bit vs 64 bit). The HyperX Memory HyperX 2GB 400MHz DDR 2pk has 0.7 V more memory voltage than the HyperX Memory HyperX 1GB 750MHz DDR2 CL4 (2.6 V vs 1.9 V). Only the HyperX Memory HyperX 2GB 400MHz DDR 2pk has ECC. Internal memory type: DDR2 on the HyperX Memory HyperX 1GB 750MHz DDR2 CL4, DDR on the HyperX Memory HyperX 2GB 400MHz DDR 2pk.

Internal memory type
- Memory HyperX 1GB 750MHz DDR2 CL4:DDR2
- Memory HyperX 2GB 400MHz DDR 2pk:DDR
Memory form factor
- Memory HyperX 1GB 750MHz DDR2 CL4:240-pin DIMM
- Memory HyperX 2GB 400MHz DDR 2pk:184-Pin DIMM
ECC
- Memory HyperX 1GB 750MHz DDR2 CL4:No
- Memory HyperX 2GB 400MHz DDR 2pk:Yes
CAS latency
- Memory HyperX 1GB 750MHz DDR2 CL4:4
- Memory HyperX 2GB 400MHz DDR 2pk:2.5
Memory bus
- Memory HyperX 1GB 750MHz DDR2 CL4:64 bit
- Memory HyperX 2GB 400MHz DDR 2pk:72 bit
Memory voltage
- Memory HyperX 1GB 750MHz DDR2 CL4:1.9 V
- Memory HyperX 2GB 400MHz DDR 2pk:2.6 V
Operating temperature (T-T)
- Memory HyperX 1GB 750MHz DDR2 CL4:0 - 55 °C
- Memory HyperX 2GB 400MHz DDR 2pk:0 - 70 °C

Side by side

Differences highlightedShow differences only

Comparison of Memory HyperX 1GB 750MHz DDR2 CL4, Memory HyperX 2GB 400MHz DDR 2pk
11 specifications	A HyperX Memory HyperX 1GB 750MHz DDR2 CL4 View product	B HyperX Memory HyperX 2GB 400MHz DDR 2pk View product
Features6 differ
Internal memory typeDiffers	DDR2	DDR
Memory form factorDiffers	240-pin DIMM	184-Pin DIMM
ECCDiffers	No	Yes
CAS latencyDiffers	4	2.5
Memory clock speedKnown for one	Unknown — not stated by the source	400 MHz
Memory busDiffers	64 bit	72 bit
Memory voltageDiffers	1.9 V	2.6 V
Operational conditions1 differ
Operating temperature (T-T)Differs	0 - 55 °C	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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