Product comparison · 2 cpus

Lenovo Intel Xeon E6540 vs Lenovo Xeon E5645

Key differences

Processor family
- Intel Xeon E6540:Intel® Xeon® 6000 Sequence
- Xeon E5645:Intel® Xeon® 5000 Sequence
Processor model
- Intel Xeon E6540:E6540
- Xeon E5645:E5645
Processor base frequency
- Intel Xeon E6540:2 GHz
- Xeon E5645:2.4 GHz
Processor lithography
- Intel Xeon E6540:45 nm
- Xeon E5645:32 nm
System bus rate
- Intel Xeon E6540:6.4 GT/s
- Xeon E5645:5.86 GT/s
Processor cache
- Intel Xeon E6540:18 MB
- Xeon E5645:12 MB
Thermal Design Power (TDP)
- Intel Xeon E6540:105 W
- Xeon E5645:80 W

Differences highlightedShow differences only

Comparison of Intel Xeon E6540, Xeon E5645
17 specifications	A Lenovo Intel Xeon E6540 View product	B Lenovo Xeon E5645 View product
Processor7 differ
Processor familyDiffers	Intel® Xeon® 6000 Sequence	Intel® Xeon® 5000 Sequence
Processor modelDiffers	E6540	E5645
Processor base frequencyDiffers	2 GHz	2.4 GHz
Processor socketKnown for one	Unknown — not stated by the source	Socket B (LGA 1366)
Processor lithographyDiffers	45 nm	32 nm
System bus rateDiffers	6.4 GT/s	5.86 GT/s
Processor cacheDiffers	18 MB	12 MB
Thermal Design Power (TDP)Differs	105 W	80 W
Compatible chipsetsKnown for one	Unknown — not stated by the source	Intel® 5520
Processor system typeKnown for one	DP	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.