Product comparison · 2 memory modules

Lenovo 512MB DDR2 SDRAM UDIMM vs Lenovo IBM MEMORY 1GB PC2-4200 CL4 DDR2 SDRAM SODIMM MEMORY (THINKPAD)

Key differences

Internal memory
- 512MB DDR2 SDRAM UDIMM:0.5 GB
- IBM MEMORY 1GB PC2-4200 CL4 DDR2 SDRAM SODIMM MEMORY (THINKPAD):1 GB
Memory form factor
- 512MB DDR2 SDRAM UDIMM:240-pin DIMM
- IBM MEMORY 1GB PC2-4200 CL4 DDR2 SDRAM SODIMM MEMORY (THINKPAD):200-pin SO-DIMM
CAS latency
- 512MB DDR2 SDRAM UDIMM:3
- IBM MEMORY 1GB PC2-4200 CL4 DDR2 SDRAM SODIMM MEMORY (THINKPAD):4
Memory clock speed
- 512MB DDR2 SDRAM UDIMM:400 MHz
- IBM MEMORY 1GB PC2-4200 CL4 DDR2 SDRAM SODIMM MEMORY (THINKPAD):533 MHz
Width
- 512MB DDR2 SDRAM UDIMM:134 mm
- IBM MEMORY 1GB PC2-4200 CL4 DDR2 SDRAM SODIMM MEMORY (THINKPAD):68 mm
Depth
- 512MB DDR2 SDRAM UDIMM:30 mm
- IBM MEMORY 1GB PC2-4200 CL4 DDR2 SDRAM SODIMM MEMORY (THINKPAD):32 mm

Differences highlightedShow differences only

Comparison of 512MB DDR2 SDRAM UDIMM, IBM MEMORY 1GB PC2-4200 CL4 DDR2 SDRAM SODIMM MEMORY (THINKPAD)
13 specifications	A Lenovo 512MB DDR2 SDRAM UDIMM View product	B Lenovo IBM MEMORY 1GB PC2-4200 CL4 DDR2 SDRAM SODIMM MEMORY (THINKPAD)View product
Features4 differ
Internal memoryDiffers	0.5 GB	1 GB
Internal memory type	DDR2	DDR2
Memory form factorDiffers	240-pin DIMM	200-pin SO-DIMM
ECC	Yes	Yes
CAS latencyDiffers	3	4
Memory clock speedDiffers	400 MHz	533 MHz
Lead plating	Gold	Gold
Operational conditionsidentical
Operating temperature (T-T)	0 - 65 °C	0 - 65 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 90%
Weight & dimensions2 differ
WidthDiffers	134 mm	68 mm
DepthDiffers	30 mm	32 mm
Height	4 mm	4 mm
Other featuresidentical
Data transfer rateKnown for one	3200 Mbit/s	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.