Do I need aftermarket HSF

I am looking into buying Intel Core i7-4790K 4.0GHz Quad-Core Processor and it is supoasted to come with HSF, and since I do not intend to OC, I had understood that I dont need a crazy HSF. But now I am reading up on turbo and I am not all that shore anymore.

Do I need to buy a fancy HSF? Will I even need turbo with 4.0GHz CPU?

The stock coolers are fine for basic tasks, but turbo simply means that if a thread needs more juice and the other cores arent busy, then it will jack up the speeds on the specific core to get the job done. Its just optimization and should not be feared. If you feel like you will need to worry about temps, or plan to be maxing it out, 100% cpu utilization, then you should invest in an aftermarket cooler. You will not need to spend very much bc the 212 EVO by coolermaster will do a marvelous job at keeping it cooler and it is very cheap. Link, at the time of this post it is $31.24.

I dont think I will max it... the most heavy thing will be games and GPU should be the bottleneck there, right?

I guess Ill stick to original HSF for now, and buy a proper cooling if I start to OC.

it should come with a heatsink but to be safe just grab a Cooler Master Hyper 212 Evo

Yeah get the cooler. The provided heatsink does not cut it when it comes to games. Unless they are trivial. I have the i5 4690k overclocked to 4.5 GHz, and on Far Cry 3, ultra settings, my cpu is ~60% load. I have liquid cooling. Temps stay below 60 degrees Celsius. IMO just get the cooler for piece of mind, its cheap.

Ok, adding to basket.

Thanks for help, would have probably cooked my system without the 2 of you.

No problem mate :D

Why buy a 4790k if no intention of overclocking? Just grab a vanilla i7 or xeon (with HT).

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If you don't intend to overclock at all then save the extra cash and get a non k skew.

I do like to tinker and I intend to OC, but not at first since putting it together will be exciting enough. And when I am ready to oc, I dont want to buy a new CPU.