Product comparison · 2 memory modules

HyperX Memory HyperX 1GB 400MHz DDR vs HyperX Memory HyperX 1GB 900MHz DDR2 CL5 2pk

Key differences

Internal memory
- Memory HyperX 1GB 400MHz DDR:1 GB
- Memory HyperX 1GB 900MHz DDR2 CL5 2pk:0.5 GB
Internal memory type
- Memory HyperX 1GB 400MHz DDR:DDR
- Memory HyperX 1GB 900MHz DDR2 CL5 2pk:DDR2
Memory form factor
- Memory HyperX 1GB 400MHz DDR:184-Pin DIMM
- Memory HyperX 1GB 900MHz DDR2 CL5 2pk:240-pin DIMM
CAS latency
- Memory HyperX 1GB 400MHz DDR:2
- Memory HyperX 1GB 900MHz DDR2 CL5 2pk:5
Memory voltage
- Memory HyperX 1GB 400MHz DDR:2.6 V
- Memory HyperX 1GB 900MHz DDR2 CL5 2pk:2.0 V
Operating temperature (T-T)
- Memory HyperX 1GB 400MHz DDR:0 - 70 °C
- Memory HyperX 1GB 900MHz DDR2 CL5 2pk:0 - 55 °C

Differences highlightedShow differences only

Comparison of Memory HyperX 1GB 400MHz DDR, Memory HyperX 1GB 900MHz DDR2 CL5 2pk
12 specifications	A HyperX Memory HyperX 1GB 400MHz DDR View product	B HyperX Memory HyperX 1GB 900MHz DDR2 CL5 2pk View product
Features5 differ
Internal memoryDiffers	1 GB	0.5 GB
Internal memory typeDiffers	DDR	DDR2
Memory form factorDiffers	184-Pin DIMM	240-pin DIMM
ECC	No	No
CAS latencyDiffers	2	5
Memory clock speedKnown for one	400 MHz	Unknown — not stated by the source
Memory bus	64 bit	64 bit
Check width	8 bit	8 bit
Memory voltageDiffers	2.6 V	2.0 V
Lead plating	Gold	Gold
Internal memory access speedKnown for one	5 ns	Unknown — not stated by the source
Operational conditions1 differ
Operating temperature (T-T)Differs	0 - 70 °C	0 - 55 °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.