Thread: Why i7 720QM better than an i5 540M?

I have the choice to buy an i7 720QM or an i5 540M and in every benchmark list I notice the i7 outperforms the i5 but I really do not see why. Yes, the i7 is a quad, but it runs only at 1.6GHz and even with turbo mode it only goes around 2.8GHz, while the i5 is clocked at 2.5GHz and can go around 3.3GHz. The benefit I see is that the i7 has 6MB cache while the i5 is limited to 3MB.

The I7 is a Quad core with hyper threading so it has 4 cores and 8 threads. The I5 is just a Quad core 4 core 4 thread.

Hyper-Threading works by copying some parts of the processor architecture that stores the state, but not repetition of the main resources for implementation. This makes the Hyper-Threading processors shows two "logical" processors, the host operating system, so that the operating system to schedule two threads or processes simultaneously.

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