http://www.tomshardware.com/answers/id-2430823/4670k-stock-cooler-temps.html
http://www.tomshardware.com/answers/id-2375842/safest-temp-3570k.html
http://www.tomshardware.com/answers/id-2466799/4590-temps.html
http://www.tomshardware.com/answers/id-2337530/4670k-cpu-temps-gaming-normal.html
http://www.tomshardware.com/answers/id-1842919/cpu-temp-problem.html
http://www.tomshardware.com/answers/id-2020781/3470-degrees-celsius-load.html
Runs the gamut from cool to hot.
I see about one every couple of days.
Again, my point was that neither brand of cpu has inherent cooling problems given similar cooling solutions.
Rather, that knowing his pc will operate in a hot and humid environment, he should pay more attention to/spend more money on cooling than someone who's PC operates in a climate controlled 22C environment.
The Op's overall budget will also have an effect on what he can do. An extra $50 on cpu cooler/ case fans is probably a good idea over what a lot of people would build. Regardless of brand.