What is the difference between i5 and i7 processors ?

Core i5 is the downgraded version of the i7. It doesn't support some of the features of the i7. i7 is definitely better in performance than i5.Lets see what the difference between the i5 and i7 processors.

1. Sockets used :
I5 uses the LGA1156 socket which comes with a new chip set and i7 processors use the LGA1366 socket type and their corresponding chip sets.

2. Memory:
Both Core i5 and Core i7 uses same DDR3 memory. But as core i5 processors are from LGA1156 family it uses dual channel memory which provides individual channels for two different identical modules which increases memory speed. Core i7 processors use triple channel memory which provides individual channels for three different identical modules. At the same time you need to buy memory in
set of three to take full advantage of i7 processor. Oh this can be costly right! But triple channel memory increases bandwidth which increases performance compared to dual channel one.

3. Hyper threading :
Hyper threading is enabled in case of i7. On its die it has 2 cores instead of one which make total core as 8. So i7 processors have 8 core with 8 threads compared to i5 which has only 4 cores with 4 threads. But till now some of the real world apps dont know how to take advantage of the 8 cores. But when we use some heavy load applications which uses lot of multi threading like 3D rendering or complex algorithms, difference in performance is noticeable.

In summary : Core i5 is main stream version of core i7. i7 entrails some extra costs due to the features we seen above. So it depends on really the use of both processors. People doing heavy load operations will definitely benefit from the i7 family and lower cost and hardware flexibility make core i5 great for majority of people.
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