Home > Processors > Core i7-2620M Vs Core i7-2720QM (not i7-2720M )

Core i7-2620M Vs Core i7-2720QM (not i7-2720M )


Core i7-2620M Vs Core i7-2720QM by starredreviews.com

Even though the part numbers look similar Core i7-2620M and Core i7-2720QM are relatively different. The Core i7-2720QM is a quad core processor while the core i7-2620M is a dual core processor. The suffix Q in the part number i7-2720QM denotes a quad core processor. People have mistakenly used the part number i7-2720M which does not exist.

Table : Core i7-2620M Vs Core i7-2720QM Feature Differences

Feature Core i7-2620M Core i7-2720QM
Core Frequency 2.70 GHz 2.20 GHz
No. Of Cores 2 (4 Hyperthreads) 4 (8 Hyperthreads)
Cache Organization 512KB L2 + 4 MB L3 Smart Cache 6 MB L3 Smart Cache
Turbo Frequency 3.40 GHz 3.30 GHz
TDP Rating 35 Watts 45 Watts
64 Bit Support Y Y
Lithography 32 nm 32 nm

 

Table : Core i7-2620M Vs Core i7-2720QM Benchmarking Comparison

Benchmarks Core i7-2620M Core i7-2720QM
PassMark Score 3628 7386
Super Pi 2M (Lower in better) 26 seconds 27 seconds
3D Mark 06 CPU 3670 5507
Windows 7 Experience Score 7.0 7.5

Some more details of Core i7-2620M

The core i7-2620M, is the second generation Sandy Bridge processor, that promises significant performance with its integrated GPU. The GPU has a base frequency of 650 MHz and when turbo is in action, its maximum clock frequency can ramp to 1.30 GHz depending upon the demand. One of the reasons for the better performance of the second generation core i7 processors is the improved Turbo Boost 2.0, using which, the processor can stay in the boosted state for a longer duration.

Some more details of Core i7-2720QM

The core i7-2720QM ( which is errously searched, sometimes with Core i7-2720M) , is the second generation quad core Sandy Bridge processor, that promises high end CPU performance. Its integrated GPU will also ensure a decent integrated GPU performance. The GPU has a base frequency of 650 MHz and when turbo is in action, its maximum clock frequency can ramp to 1.30 GHz depending upon the demand. One of the reasons for the better performance of the second generation core i7 processors is the improved Turbo Boost 2.0, using which, the processor can stay in the boosted state for a longer duration.

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  1. Anirudh Vaidya
    May 12th, 2011 at 17:46 | #1

    For Core i7-2720QM , the max turbo frequency depend upon the number of max cores – and it goes as follows

    Only one core Active – Max turbo frequency – 3.30 GHz
    Two core Active – Max turbo frequency – 3.20 GHz
    Three core Active – Max turbo frequency – 3.10 GHz
    One core Active – Max turbo frequency – 3.00 GHz

    Same thing for the core i5-480M. The max turbo frequency decreases as the number of processors active increase

  2. Anirudh Vaidya
    May 12th, 2011 at 17:54 | #2

    If you are considering Core i7-2720QM, you may also like to check the Core i7-2820QM – the bigger brother.

  3. Joe Jaquues
    May 12th, 2011 at 17:59 | #3

    @Anirudh

    You may like to note that the Core i7-2820QM is substantially more expensive than the Core i7-2720QM. The extra cost may not be justified for small gain.