i want it to be the best. 3570k would be good for future use also.
i want to spend once only. so tell me if i go with this one would the stock cooler work well for me.
or there is a need to spend few extra bucks for a cooler
else convince me for the 3470
Compare the differences, essentially they are a 200MHz clock diff (3.2/3.6 vs. 3.4/3.8GHz), the ability to overclock (non-K vs. K), and the on-die graphics (2500 vs. 4000). For $15 (currently $199 vs. $214.99 on newegg), I would say it's worth the 200MHz, but that's your call. I own the 3570K and have it overclocked to 4.6GHz, with a Corsair H70 cooler. Even if you aren't going to overclock, its a very nice chip, and the $15 difference is negligible at this price-point. If you don't care about the $15, get the 3570K, you don't need an aftermarket cooler unless you're going to overclock (and for $15 having the option to overclock in the future even if you DON'T plan to, is more than enough to warrant the difference, ON TOP of the base speed diff.). Just my 2 cents.