Which CPU would be good for this ASRock Z77 MOBO?

DarkTerbear

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Dec 12, 2014
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If you have $325, then the i7-3770K would be your best bet (your motherboard supports overclocking).
If you don't want to overclock, then take the $290 variant i7-3770.
If you don't want to have huge energy bills, have the low power i7-3770S.
For $200, you can get the i5-3570K or i5-3570
For $100, you can get the i3-3220.

Since you're looking for an i5, the 3570K is your deal.