Product comparison · 2 cpus

Dell Xeon E5640 vs Dell Xeon X5650

Key differences

Processor model
- Xeon E5640:E5640
- Xeon X5650:X5650
Processor cores
- Xeon E5640:4
- Xeon X5650:6
Processor threads
- Xeon E5640:8
- Xeon X5650:12
System bus rate
- Xeon E5640:5.86 GT/s
- Xeon X5650:6.4 GT/s
Processor boost frequency
- Xeon E5640:2.93 GHz
- Xeon X5650:3.06 GHz
Thermal Design Power (TDP)
- Xeon E5640:80 W
- Xeon X5650:95 W
Memory bandwidth supported by processor (max)
- Xeon E5640:25.6 GB/s
- Xeon X5650:32 GB/s
Memory clock speeds supported by processor
- Xeon E5640:800,1066 MHz
- Xeon X5650:800,1066,1333 MHz

Differences highlightedShow differences only

Comparison of Xeon E5640, Xeon X5650
38 specifications	A Dell Xeon E5640 View product	B Dell Xeon X5650 View product
Processor7 differ
Processor modelDiffers	E5640	X5650
Processor coresDiffers	4	6
Processor threadsDiffers	8	12
System bus rateDiffers	5.86 GT/s	6.4 GT/s
Processor boost frequencyDiffers	2.93 GHz	3.06 GHz
Thermal Design Power (TDP)Differs	80 W	95 W
Memory bandwidth supported by processor (max)Differs	25.6 GB/s	32 GB/s
Memory1 differ
Memory clock speeds supported by processorDiffers	800,1066 MHz	800,1066,1333 MHz
Operational conditions1 differ
TcaseDiffers	77.6 °C	81.3 °C

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.