Product comparison · 2 cpus

HP Intel Core i7-720QM vs Lenovo Intel Xeon E5640

15specifications compared
10differ
5identical
13known for one product only

Key differences

Processor family
- Intel Core i7-720QM:Intel® Core™ i7
- Intel Xeon E5640:Intel® Xeon® 5000 Sequence
Processor model
- Intel Core i7-720QM:i7-720QM
- Intel Xeon E5640:E5640
Processor base frequency
- Intel Core i7-720QM:1.6 GHz
- Intel Xeon E5640:2.66 GHz
Processor socket
- Intel Core i7-720QM:PGA988
- Intel Xeon E5640:Socket B (LGA 1366)
Component for
- Intel Core i7-720QM:Laptop
- Intel Xeon E5640:Server/workstation
System bus rate
- Intel Core i7-720QM:2.5 GT/s
- Intel Xeon E5640:5.86 GT/s
Processor cache
- Intel Core i7-720QM:6 MB
- Intel Xeon E5640:12 MB
Thermal Design Power (TDP)
- Intel Core i7-720QM:45 W
- Intel Xeon E5640:80 W

Side by side

Differences highlightedShow differences only

Comparison of Intel Core i7-720QM, Intel Xeon E5640
28 specifications	A HP Intel Core i7-720QM View product	B Lenovo Intel Xeon E5640 View product
Processor9 differ
Processor familyDiffers	Intel® Core™ i7	Intel® Xeon® 5000 Sequence
Processor generationKnown for one	Intel® Core™ i7	Unknown — not stated by the source
Processor modelDiffers	i7-720QM	E5640
Processor base frequencyDiffers	1.6 GHz	2.66 GHz
Processor cores	4	4
Processor socketDiffers	PGA988	Socket B (LGA 1366)
Processor lithographyKnown for one	45 nm	Unknown — not stated by the source
Package type	Tray	Tray
Component forDiffers	Laptop	Server/workstation
Processor threads	8	8
System bus rateDiffers	2.5 GT/s	5.86 GT/s
Processor operating modes	64-bit	64-bit
Processor boost frequencyKnown for one	2.8 GHz	Unknown — not stated by the source
Processor cacheDiffers	6 MB	12 MB
Processor cache type	L3	L3
Thermal Design Power (TDP)Differs	45 W	80 W
CPU multiplier (bus/core ratio)Differs	12	20
Memory bandwidth supported by processor (max)Known for one	21 GB/s	Unknown — not stated by the source
VID Voltage RangeKnown for one	Unknown — not stated by the source	0.8 - 1.3 V
Memoryidentical
Maximum internal memory supported by processorKnown for one	8 GB	Unknown — not stated by the source
Memory clock speeds supported by processorKnown for one	1066,1333 MHz	Unknown — not stated by the source
Memory channelsKnown for one	Dual-channel	Unknown — not stated by the source
ECCKnown for one	No	Unknown — not stated by the source
Features1 differ
Market segmentDiffers	Mobile	Server
Weight & dimensionsidentical
WidthKnown for one	37.5 mm	Unknown — not stated by the source
DepthKnown for one	37.5 mm	Unknown — not stated by the source
Other featuresidentical
Temperature (max)Known for one	100 °C	Unknown — not stated by the source
Operational conditionsidentical
Maximum operating temperatureKnown for one	Unknown — not stated by the source	77.6 °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.

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