Product comparison · 2 memory modules

HyperX 1GB 400MHz DDR Non-ECC CL2.5 DIMM vs HyperX Memory HyperX 2GB 800MHz DDR2 CL5 2pk

Key differences

Internal memory type
- 1GB 400MHz DDR Non-ECC CL2.5 DIMM:DDR
- Memory HyperX 2GB 800MHz DDR2 CL5 2pk:DDR2
Memory form factor
- 1GB 400MHz DDR Non-ECC CL2.5 DIMM:184-Pin DIMM
- Memory HyperX 2GB 800MHz DDR2 CL5 2pk:240-pin DIMM
CAS latency
- 1GB 400MHz DDR Non-ECC CL2.5 DIMM:2
- Memory HyperX 2GB 800MHz DDR2 CL5 2pk:5
Memory clock speed
- 1GB 400MHz DDR Non-ECC CL2.5 DIMM:400 MHz
- Memory HyperX 2GB 800MHz DDR2 CL5 2pk:800 MHz
Memory voltage
- 1GB 400MHz DDR Non-ECC CL2.5 DIMM:2.6 V
- Memory HyperX 2GB 800MHz DDR2 CL5 2pk:2.0 V
Operating temperature (T-T)
- 1GB 400MHz DDR Non-ECC CL2.5 DIMM:0 - 70 °C
- Memory HyperX 2GB 800MHz DDR2 CL5 2pk:0 - 55 °C

Differences highlightedShow differences only

Comparison of 1GB 400MHz DDR Non-ECC CL2.5 DIMM, Memory HyperX 2GB 800MHz DDR2 CL5 2pk
19 specifications	A HyperX 1GB 400MHz DDR Non-ECC CL2.5 DIMM View product	B HyperX Memory HyperX 2GB 800MHz DDR2 CL5 2pk View product
Features5 differ
Internal memory typeDiffers	DDR	DDR2
Memory form factorDiffers	184-Pin DIMM	240-pin DIMM
CAS latencyDiffers	2	5
Memory clock speedDiffers	400 MHz	800 MHz
Buffered memory typeKnown for one	Unknown — not stated by the source	Unregistered (unbuffered)
Memory voltageDiffers	2.6 V	2.0 V
Module configurationKnown for one	Unknown — not stated by the source	128M X 64
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
Other featuresidentical
Bus clock rateKnown for one	Unknown — not stated by the source	800 MHz
Error indicationKnown for one	Unknown — not stated by the source	No
Internal memoryKnown for one	Unknown — not stated by the source	2048 MB
Memory layoutKnown for one	Unknown — not stated by the source	2 x 1024 MB
Processor frequencyKnown for one	Unknown — not stated by the source	800 MHz

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.