With haswell and ivy, under some conditions a 20 quid air cooler will cool pretty much the same as several hundred quids worth of custom watercooling. Stuff like prime/ibt should never be used. Even tasks like rendering or encoding result in very high temps. Chip in sig at 4.7ghz will easily hit the mid-high 70's in games. Cooled by a k2 dual tower which is comparable to some aio units.
Can't be any worse than what i'm having to contend with now....
I had a Seidon 120V on the FX-9590 and under IBT it was pushing 65 Core and 65c to 70c Socket at 4.7Ghz.
Since then i have put a KRAKEN X31 on it, wow, IBT 48c on the cores... but! still 65 to 70c on the socket
Vishera is not difficult to cool, soldered HS ecte.... but one problem remains. the power consumption. it heats up the Motherboards VRM's, it does not matter how capable those VRM's are, on My Sabertooth they have no trouble dealing with way over 200 watts but the physical thermals of that remain and its hasto go somewhere, that somewhere happens to be the socket, no matter how good the Chip and the Cooler is at keeping things cool the heat bleed off from the VRMs cooks everything.
i like the Vishera chip, for me even the performance is good, i don't play silly DX9 MMO's.
But trying to manage the physical heat output, frankly i have had enough of it, i'm coming round to an i5 just because the physical heat output is far easier to manage, even if the numbers are high physically its not actually generating as much heat.