Product comparison · 2 memory modules

HP 512MB SDRAM 133MHz vs Lenovo 1GB DDR2 SDRAM UDIMM

Key differences

Memory form factor
- 512MB SDRAM 133MHz:168-pin DIMM
- 1GB DDR2 SDRAM UDIMM:240-pin DIMM
Memory clock speed
- 512MB SDRAM 133MHz:133 MHz
- 1GB DDR2 SDRAM UDIMM:400 MHz

Differences highlightedShow differences only

Comparison of 512MB SDRAM 133MHz, 1GB DDR2 SDRAM UDIMM
16 specifications	A HP 512MB SDRAM 133MHz View product	B Lenovo 1GB DDR2 SDRAM UDIMM View product
Features2 differ
Internal memory typeKnown for one	Unknown — not stated by the source	DDR2
Memory form factorDiffers	168-pin DIMM	240-pin DIMM
ECC	Yes	Yes
CAS latencyKnown for one	Unknown — not stated by the source	3
Memory clock speedDiffers	133 MHz	400 MHz
Lead platingKnown for one	Unknown — not stated by the source	Gold
Internal memoryKnown for one	0.5 GB	Unknown — not stated by the source
Memory layout (modules x size)Known for one	1 x 0.5 GB	Unknown — not stated by the source
Buffered memory typeKnown for one	Registered (buffered)	Unknown — not stated by the source
Memory voltageKnown for one	3.3 V	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 65 °C
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	134 mm
DepthKnown for one	Unknown — not stated by the source	30 mm
HeightKnown for one	Unknown — not stated by the source	4 mm
Other featuresidentical
Data transfer rateKnown for one	Unknown — not stated by the source	3200 Mbit/s
Packaging dataidentical
Package typeKnown for one	DIMM	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.