Product comparison · 2 memory modules

HyperX 256MB DDR2 533MHz vs HyperX Memory HyperX 512MB 400Mhz DDR 2Pk

Key differences

Internal memory type
- HyperX 256MB DDR2 533MHz:DDR2
- Memory HyperX 512MB 400Mhz DDR 2Pk:DDR
Memory form factor
- HyperX 256MB DDR2 533MHz:240-pin DIMM
- Memory HyperX 512MB 400Mhz DDR 2Pk:184-Pin DIMM
CAS latency
- HyperX 256MB DDR2 533MHz:3
- Memory HyperX 512MB 400Mhz DDR 2Pk:2
Memory clock speed
- HyperX 256MB DDR2 533MHz:533 MHz
- Memory HyperX 512MB 400Mhz DDR 2Pk:400 MHz
Check width
- HyperX 256MB DDR2 533MHz:16 bit
- Memory HyperX 512MB 400Mhz DDR 2Pk:8 bit
Operating temperature (T-T)
- HyperX 256MB DDR2 533MHz:0 - 55 °C
- Memory HyperX 512MB 400Mhz DDR 2Pk:0 - 70 °C

Differences highlightedShow differences only

Comparison of HyperX 256MB DDR2 533MHz, Memory HyperX 512MB 400Mhz DDR 2Pk
16 specifications	A HyperX HyperX 256MB DDR2 533MHz View product	B HyperX Memory HyperX 512MB 400Mhz DDR 2Pk View product
Features5 differ
Internal memory	0.25 GB	0.25 GB
Internal memory typeDiffers	DDR2	DDR
Memory form factorDiffers	240-pin DIMM	184-Pin DIMM
ECC	No	No
CAS latencyDiffers	3	2
Memory clock speedDiffers	533 MHz	400 MHz
Memory bus	64 bit	64 bit
Check widthDiffers	16 bit	8 bit
Memory voltageKnown for one	Unknown — not stated by the source	2.6 V
Lead platingKnown for one	Unknown — not stated by the source	Gold
Internal memory access speedKnown for one	Unknown — not stated by the source	5 ns
Operational conditions1 differ
Operating temperature (T-T)Differs	0 - 55 °C	0 - 70 °C
Weight & dimensionsidentical
WidthKnown for one	133 mm	Unknown — not stated by the source
DepthKnown for one	2.7 mm	Unknown — not stated by the source
HeightKnown for one	30 mm	Unknown — not stated by the source
Other featuresidentical
Mac compatibilityKnown for one	No	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.