Q. Which of these two processors is faster ?
A. The quick answer is that Core i7-3520M is faster than the Core i5-3210M.
Q. OK. Is it because the Core i7-3520M is quad core ?
A. Not it is not. Both the processors are dual core. Often people confuse that Core i7 is a quad core. This is true for most of the core i7s but not the Core i7-3520M.
Q. OK. Then its should be possible to compare them by clock frequencies.
A. That is true. The Core i7-3520M is clocked at 2.9 GHz Vs 2.50 GHz of i5-3210M. If you look at it theoretically - then the i7-3520M is faster by (2.9 - 2.5) x 100% / 2.5 = 16% faster. This is substantial.
Q. I Heard that it is an Ivy Bridge processor ?
A. Yes that is correct. Both of these are Ivy Bridge processor, which is a successor of the Sandy Bridge processor. Intel made architetural improvements in the Ivy Bridge which makes its processor faster by 10% for the same clock as compared to the Sandy Bridge processor.
Ivy Bridge referefs to the architecture. There are a large number of notebook and desktop processors under Ivy Bridge.
The Ivy Bridge also comes with integrated graphics - called HD Graphics 4000 which has improved by a whopping 50% in performance as compared to the previous generation HD Graphics 3000 in the Sandy Bridge.
Q. But is not HD Graphics 4000 in both these processors ?
A. Yes that is true. Both benefit by the improved HD Graphics.
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