Product comparison · 2 cpus

Dell Xeon E5640 vs HP Intel Xeon X5687

Key differences

Processor model
- Xeon E5640:E5640
- Intel Xeon X5687:X5687
Processor base frequency
- Xeon E5640:2.66 GHz
- Intel Xeon X5687:3.6 GHz
System bus rate
- Xeon E5640:5.86 GT/s
- Intel Xeon X5687:6.4 GT/s
Processor boost frequency
- Xeon E5640:2.93 GHz
- Intel Xeon X5687:3.86 GHz
Thermal Design Power (TDP)
- Xeon E5640:80 W
- Intel Xeon X5687:130 W
VID Voltage Range
- Xeon E5640:0.75 - 1.35 V
- Intel Xeon X5687:0.750 - 1.350 V
Memory bandwidth supported by processor (max)
- Xeon E5640:25.6 GB/s
- Intel Xeon X5687:32 GB/s
Memory clock speeds supported by processor
- Xeon E5640:800,1066 MHz
- Intel Xeon X5687:800,1066,1333 MHz

Differences highlightedShow differences only

Comparison of Xeon E5640, Intel Xeon X5687
42 specifications	A Dell Xeon E5640 View product	B HP Intel Xeon X5687 View product
Processor7 differ
Processor modelDiffers	E5640	X5687
Processor base frequencyDiffers	2.66 GHz	3.6 GHz
System bus rateDiffers	5.86 GT/s	6.4 GT/s
Processor boost frequencyDiffers	2.93 GHz	3.86 GHz
Thermal Design Power (TDP)Differs	80 W	130 W
VID Voltage RangeDiffers	0.75 - 1.35 V	0.750 - 1.350 V
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
Thermal Monitoring TechnologiesKnown for one	Unknown — not stated by the source	No
Supported instruction setsDiffers	AES, SSE4.2	SSE4.2
Embedded options availableKnown for one	Unknown — not stated by the source	No
Processor special featuresidentical
Intel® AES New Instructions (Intel® AES-NI)Known for one	Unknown — not stated by the source	Yes
Intel VT-x with Extended Page Tables (EPT)Known for one	Unknown — not stated by the source	Yes
Operational conditions1 differ
TcaseDiffers	77.6 °C	80.4 °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.