That is a very complicated question. Google the AMD processor model the put vs i5 or i7. Websites will show you all the data on how they compare. The A12 and the FX Amd processors are quad-core while and 7th gen i5 is a duo. Personally I think the 12 and FX are faster than the i5 by quite a bit. It also depends on how much ram the computer has and what task you are performing. A couple of Google searches will get you on the right track to figure out what's right for you. Amd processors are a great alternative to expensive gaming computers because of the graphics card they come with and their multitasking abilites.