Product comparison · 2 cpus

Dell Xeon E5640 vs HP X5677 processor

21specifications compared
7differ
14identical
23known for one product only

Key differences

Processor model
- Xeon E5640:E5640
- X5677 processor:X5677
Processor base frequency
- Xeon E5640:2.66 GHz
- X5677 processor:3.46 GHz
System bus rate
- Xeon E5640:5.86 GT/s
- X5677 processor:6.4 GT/s
Processor boost frequency
- Xeon E5640:2.93 GHz
- X5677 processor:3.73 GHz
Thermal Design Power (TDP)
- Xeon E5640:80 W
- X5677 processor:130 W
Memory bandwidth supported by processor (max)
- Xeon E5640:25.6 GB/s
- X5677 processor:32 GB/s
Memory clock speeds supported by processor
- Xeon E5640:800,1066 MHz
- X5677 processor:800,1066,1333 MHz

Side by side

Differences highlightedShow differences only

Comparison of Xeon E5640, X5677
44 specifications	A Dell Xeon E5640 View product	B HP X5677 processor Model X5677 View product
Processor6 differ
Processor modelDiffers	E5640	X5677
Processor base frequencyDiffers	2.66 GHz	3.46 GHz
System bus rateDiffers	5.86 GT/s	6.4 GT/s
Processor boost frequencyDiffers	2.93 GHz	3.73 GHz
Thermal Design Power (TDP)Differs	80 W	130 W
Bus typeKnown for one	QPI	Unknown — not stated by the source
Number of QPI linksKnown for one	2	Unknown — not stated by the source
Memory bandwidth supported by processor (max)Differs	25.6 GB/s	32 GB/s
Package typeKnown for one	Unknown — not stated by the source	Tray
L3 cache speedKnown for one	Unknown — not stated by the source	3.46 GHz
SteppingKnown for one	Unknown — not stated by the source	B1
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	26
Processor codeKnown for one	Unknown — not stated by the source	SLBV9
Memory1 differ
Memory types supported by processorKnown for one	DDR3-SDRAM	Unknown — not stated by the source
Memory clock speeds supported by processorDiffers	800,1066 MHz	800,1066,1333 MHz
Graphicsidentical
On-board graphics cardKnown for one	No	Unknown — not stated by the source
Featuresidentical
Execute Disable BitKnown for one	Yes	Unknown — not stated by the source
Idle StatesKnown for one	Yes	Unknown — not stated by the source
Supported instruction setsKnown for one	AES, SSE4.2	Unknown — not stated by the source
CPU configuration (max)Known for one	2	Unknown — not stated by the source
Processor special featuresidentical
Enhanced Intel SpeedStep TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel Trusted Execution TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel® Hyper Threading Technology (Intel® HT Technology)Known for one	Yes	Unknown — not stated by the source
Intel® Turbo Boost TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel Demand Based SwitchingKnown for one	Yes	Unknown — not stated by the source
Intel Virtualization Technology (VT-x)Known for one	Yes	Unknown — not stated by the source
Intel Virtualization Technology for Directed I/O (VT-d)Known for one	Yes	Unknown — not stated by the source
Operational conditionsidentical
TcaseKnown for one	77.6 °C	Unknown — not stated by the source
Maximum operating temperatureKnown for one	Unknown — not stated by the source	80.4 °C
Other featuresidentical
Intel® Virtualization Technology (Intel® VT)Known for one	VT-d, VT-x	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.

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