Product comparison · 2 memory modules

HyperX Memory HyperX 512MB 400Mhz DDR 2Pk vs Lenovo 256MB SDRAM SODIMM UPG

Key differences

Memory form factor
- Memory HyperX 512MB 400Mhz DDR 2Pk:184-Pin DIMM
- 256MB SDRAM SODIMM UPG:144-pin SO-DIMM
ECC
- Memory HyperX 512MB 400Mhz DDR 2Pk:No
- 256MB SDRAM SODIMM UPG:Yes
Memory clock speed
- Memory HyperX 512MB 400Mhz DDR 2Pk:400 MHz
- 256MB SDRAM SODIMM UPG:100 MHz
Operating temperature (T-T)
- Memory HyperX 512MB 400Mhz DDR 2Pk:0 - 70 °C
- 256MB SDRAM SODIMM UPG:10 - 35 °C

Differences highlightedShow differences only

Comparison of Memory HyperX 512MB 400Mhz DDR 2Pk, 256MB SDRAM SODIMM UPG
17 specifications	A HyperX Memory HyperX 512MB 400Mhz DDR 2Pk View product	B Lenovo 256MB SDRAM SODIMM UPG View product
Features3 differ
Internal memory	0.25 GB	0.25 GB
Internal memory typeKnown for one	DDR	Unknown — not stated by the source
Memory form factorDiffers	184-Pin DIMM	144-pin SO-DIMM
ECCDiffers	No	Yes
CAS latencyKnown for one	2	Unknown — not stated by the source
Memory clock speedDiffers	400 MHz	100 MHz
Memory busKnown for one	64 bit	Unknown — not stated by the source
Check widthKnown for one	8 bit	Unknown — not stated by the source
Memory voltageKnown for one	2.6 V	Unknown — not stated by the source
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	10 - 35 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 80%
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	67.6 mm
DepthKnown for one	Unknown — not stated by the source	25.4 mm
HeightKnown for one	Unknown — not stated by the source	4 mm
Other featuresidentical
Special featuresKnown for one	Unknown — not stated by the source	Authenticity Seal, Tamper evident carton seal

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.