Product comparison · 2 cpus

HP Intel Core i7-820QM vs HP Intel Core i7-840QM

Key differences

Processor model
- Intel Core i7-820QM:i7-820QM
- Intel Core i7-840QM:i7-840QM
Processor base frequency
- Intel Core i7-820QM:1.73 GHz
- Intel Core i7-840QM:1.86 GHz
Processor boost frequency
- Intel Core i7-820QM:3.06 GHz
- Intel Core i7-840QM:3.2 GHz
CPU multiplier (bus/core ratio)
- Intel Core i7-820QM:13
- Intel Core i7-840QM:14

Differences highlightedShow differences only

Comparison of Intel Core i7-820QM, Intel Core i7-840QM
26 specifications	A HP Intel Core i7-820QM View product	B HP Intel Core i7-840QM View product
Processor4 differ
Processor family	Intel® Core™ i7	Intel® Core™ i7
Processor generation	Intel® Core™ i7	Intel® Core™ i7
Processor modelDiffers	i7-820QM	i7-840QM
Processor base frequencyDiffers	1.73 GHz	1.86 GHz
Processor cores	4	4
Processor socket	PGA988	PGA988
Processor lithography	45 nm	45 nm
Package type	Tray	Tray
Component for	Laptop	Laptop
Processor threads	8	8
System bus rate	2.5 GT/s	2.5 GT/s
Processor operating modes	64-bit	64-bit
Processor boost frequencyDiffers	3.06 GHz	3.2 GHz
Processor cache	8 MB	8 MB
Processor cache type	L3	L3
Thermal Design Power (TDP)	45 W	45 W
CPU multiplier (bus/core ratio)Differs	13	14
Memory bandwidth supported by processor (max)	21 GB/s	21 GB/s
Memoryidentical
Maximum internal memory supported by processor	8 GB	8 GB
Memory clock speeds supported by processor	1066,1333 MHz	1066,1333 MHz
Memory channels	Dual-channel	Dual-channel
ECC	No	No
Featuresidentical
Market segment	Mobile	Mobile
Weight & dimensionsidentical
Width	37.5 mm	37.5 mm
Depth	37.5 mm	37.5 mm
Other featuresidentical
Temperature (max)	100 °C	100 °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.