if you want it for ah, get an Intel cpu. less problems playing ah per skuzzy. he has mentioned this in many threads. I believe he's talking as a group he has more problems with amd than with intel. then there's the one core thingy which I don't understand but you may want to research. as for getting six cores ah only uses two so get the fastest two core cpu you can afford rather than a slower zilion cores.
semp
this is just one opinion of thousands........ I have been here playing Aces High since Beta and I have used AMD cpu's the whole time, outside of building an Intel celeron 333 cpu computer for my (x)father-in-law to play the game back in 99/2000 and tweaking an Intel Pent 4 to play the game ( which truly sucked in my opinion but it had more to do with the complete components combined in that person's PC )..... I have not had problems with AMD and Aces High.....
their are thousands here in Aces High who have AMD equipped computers and have no problems..... then again, their are 100's ( or maybe thousands ) that have AMD (and also the same amount that have Intel ) and they always have problems with Aces High...... but most times these problems are not because Aces High will not work with the CPU ( regardless of CPU brand ).it is because the users with the troubled computers bloat their PC's down, try to use P2P file sharing programs, try to go beyond the means of what the complete PC build is actually capable of, and numerous other things which is actually USER ERROR and IGNORANCE or incompetence with only the knowledge of turning the PC on and double clicking /scrolling and nothing more......
Skuzzy recommends Intel, and Aces High has less or ( easier problem fixes perhaps ) with Intel......
but if one does the proper question asking, research of components, specing out a build the proper mixing of components, then there is nothing wrong with AMD and AH working flawlessly, even if you might be limited to just using a single core of a multi-core CPU....... you can still build a PC with AMD that will flat out haul bellybutton and have the ability to run everything maxed out at the highest screen res settings, with no problems...... it has been proven many times over already
NOTE: btw the spellchecker is biased it includes Intel in the dictionary but does not include AMD

NOTE: this is a personal opinion also just like the one I quoted
if ya need any help just ask, lots here are willing to offer you advice, but be sure to double check and research everything
best of luck
hope this helps