got several that run AH fine
AMD Phenom II 555 x2 @ 3.20 GHz ( will unlock to 4 cores if needed ) <---- 6 years old
AMD Phenom II Q975 Black Edition x4 @ 3.6 GHz actual clock read is 3.71 with no overclock ( will also unlock to more cores ) <-- 5+ years old <----THIS CPU IS THE BEST ONE, IT OUT PERFORMS ALL THE OTHER AMD systems I have AND IS ON PAR/NECK -n-NECK WITH MY Intel i7-2600k system
(2) AMD FX-4350 Black Editions x4 @ 4.1 GHz ( Turbo to 4.3 GHz ) one of these two is running at 4.8 GHz on Air Cool and stays under 50c and not running in Turbo mode, the other is not over clocked ( will unlock to 8 cores if needed ) <--- built these 2 last year
all but the overclocked FX cpu are using ASUS MB's, the overclocked FX-4350 is using a Gigabyte MB
the 3 that are not overclocked rarely reach the 40 degree Celsius point, and the rest of the PC components and internal case temp rarely reach 35 to 38 degrees Celsius
all of them can run AH pretty much maxed out using 2048 textures / 4096 shadow textures and about 1/2 way on environmental mapping or close to it...... the phenom's are using 2 cores, the AMD FX cpu's are only using 1 core, but still runs AH fine.....
I must add, not everyone will get the same performance! one must research and select the right PC components to work with each other and have the proper cooling needed for the CPU, video card and good air flowing cases......Also, one must be diligent in keeping their OS operating lean and clean, as well as keeping the registry clean and the processes trimmed down.... YMMV
hope this helps
TC