Product comparison · 2 memory modules

Lenovo 256MB PC2-6400 Non-Parity DDR2 SDRAM UDIMM Memory vs Lenovo 2GB PC2-4200 533MHz DDR2 SDRAM UDIMM Memory

10specifications compared
3differ
7identical
1known for one product only

Key differences

Internal memory
- 256MB PC2-6400 Non-Parity DDR2 SDRAM UDIMM Memory:0.25 GB
- 2GB PC2-4200 533MHz DDR2 SDRAM UDIMM Memory:2 GB
CAS latency
- 256MB PC2-6400 Non-Parity DDR2 SDRAM UDIMM Memory:6
- 2GB PC2-4200 533MHz DDR2 SDRAM UDIMM Memory:4
Memory clock speed
- 256MB PC2-6400 Non-Parity DDR2 SDRAM UDIMM Memory:800 MHz
- 2GB PC2-4200 533MHz DDR2 SDRAM UDIMM Memory:533 MHz

Side by side

Differences highlightedShow differences only

Comparison of 256MB PC2-6400 Non-Parity DDR2 SDRAM UDIMM Memory, 2GB PC2-4200 533MHz DDR2 SDRAM UDIMM Memory
11 specifications	A Lenovo 256MB PC2-6400 Non-Parity DDR2 SDRAM UDIMM Memory View product	B Lenovo 2GB PC2-4200 533MHz DDR2 SDRAM UDIMM Memory View product
Features3 differ
Internal memoryDiffers	0.25 GB	2 GB
Internal memory type	DDR2	DDR2
Memory form factor	240-pin DIMM	240-pin DIMM
ECCKnown for one	Yes	Unknown — not stated by the source
CAS latencyDiffers	6	4
Memory clock speedDiffers	800 MHz	533 MHz
Lead plating	Gold	Gold
Weight & dimensionsidentical
Width	134 mm	134 mm
Depth	30 mm	30 mm
Height	4 mm	4 mm
Other featuresidentical
Number of pins	240	240

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.

More memory module comparisons

All memory module comparisons