Guys, for CPU hungry games, is this a good budget build?



Not true for all CPU's, high end i5's and i7's can run ArmA games on max settings 60fps. I agree that they are very poorly optimised with a tragic engine but they are still playable with Intel CPU's. My recommendation, stay away from AMD if you are planning on playing ArmA
 


From personal experience with an i5 (rig in signature) and numerous posts online it really depends on the server. Single player mode it's not as much of a problem but for most multiplayer servers the CPU doesn't get utilized like it's supposed to. You will find that the CPU and GPU are not working at full load and FPS are low. Think it has something to do with too many objects being rendered server side or something. What ever the reason performance is not very good.

If you have tweaked some settings to get it to work better I would be interested in what you have done.
 


I have found that if you set your settings on very high or Ultra it uses more of your GPU power and so gains you more fps, also setting your view distance to 1000 will gain you a huge fps jump as you rarely need to see further than that. My i7 4790k and R9 290x Lightning can run Altis Wasteland on ultra at around 50-60 fps, lowest i've seen is 35 fps.
 
I think that the i5 would be your best bet because you DO want to play CPU intensive games. And I am just picking hairs here for the rest of your build but I would get a Western Digital HDD and G. Skill, Kingston or Corsair memory over crucial.