With decent cooling?
Cooling should be made to its requirements. Yes if you had a rig that could maintain 300+ fps in battlefield 4 whilst rendering 4 1080p 2hr vids then yes you would need some serious cooling. I have built PC's for myself and several friends for gaming over 12 years and i ALWAYS over kill the cooling as mostly that is what limits you.
I run an Evga 970 FTW GPU which is professionally OC (stock ftw) VERY WELL. I could not squeeze much more out of it. I run a custom curve on fan speeds. They don't even come on until 52c as minor comp use, googling etc, my rig doesn't reach that. The Evga fans are quiet and effective. MAX temp on full load (heaven benchmark)=71c. That don't need water cooled.
My i7 4790K is OC to 4.6, i'm more than happy with that. Yes i could push it more but it's stable where it is and has never slowed me down or failed me. Hooked up to Corsair H100i it reaches 73c under full load (prime95).
Sweet cooling? wanna see cpu temps at -10c (yes MINUS)....
https://www.youtube.com/watch?v=VUbpb23yTK8