the x4 955 is way better than an i3 540, but if you do not game or convert vids, you can use the 540 to give a polar bear a few xtra milliseconds on his melting iceberg, that's why i got mine, but the i3 is supposed to be about $40 less than the 955, but the i3 can more than hold its own performance wise, i convert vids regularly, and i am quite pleased