Product comparison · 2 cpus

Dell Xeon E5540 vs Dell Xeon X5550

Key differences

Processor model
- Xeon E5540:E5540
- Xeon X5550:X5550
Processor base frequency
- Xeon E5540:2.53 GHz
- Xeon X5550:2.66 GHz
System bus rate
- Xeon E5540:5.86 GT/s
- Xeon X5550:6.4 GT/s
Processor boost frequency
- Xeon E5540:2.8 GHz
- Xeon X5550:3.06 GHz
L3 cache speed
- Xeon E5540:2.53 GHz
- Xeon X5550:2.66 GHz
Thermal Design Power (TDP)
- Xeon E5540:80 W
- Xeon X5550:95 W
CPU multiplier (bus/core ratio)
- Xeon E5540:19
- Xeon X5550:20
Memory bandwidth supported by processor (max)
- Xeon E5540:25.6 GB/s
- Xeon X5550:32 GB/s

Differences highlightedShow differences only

Comparison of Xeon E5540, Xeon X5550
47 specifications	A Dell Xeon E5540 View product	B Dell Xeon X5550 View product
Processor8 differ
Processor modelDiffers	E5540	X5550
Processor base frequencyDiffers	2.53 GHz	2.66 GHz
System bus rateDiffers	5.86 GT/s	6.4 GT/s
Processor boost frequencyDiffers	2.8 GHz	3.06 GHz
L3 cache speedDiffers	2.53 GHz	2.66 GHz
Thermal Design Power (TDP)Differs	80 W	95 W
CPU multiplier (bus/core ratio)Differs	19	20
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
Features1 differ
CPU configuration (max)Known for one	2	Unknown — not stated by the source
Embedded options availableDiffers	Yes	No
Operational conditions1 differ
TcaseDiffers	76 °C	75 °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.