All the CPUs of this list are almost the same, all are only differed by the clock speed which generally affected there performance. AMD FX-9590 seemed to score the highest benchmark score of 10190 followed by FX-9370 with 9447 scores, FX-9370 with 9036 scores and so on. FX-9590 is the only one to reach the turbo boost frequency of 5.0 GHz which is massive but it is also power hungry. AMD FX-9590 is the best CPU of AMD FX series with the highest performance. Although if you are going to consider any of the above CPU then you have to arrange an external graphics card and thermal solution by yourself.