Anyone here can say that the i5 or the 4300/6300 is faster, but for normal computer use it isn't any. They only time you see any of this performance is in a benchmark.
Personally, I love my A-10 more than I thought I would. I build it as an experimental build with the new Trinity-based CPU's as I was using my Phenom 1090t (still I love it.)
Again, the overclock on this thing is amazing. The other day, I cranked it to 5.6Ghz then stopped. Though, I have heard of it being cranked up to 7.2 ( I think) which is pretty amazing that these chips can handle that. Never saw a i5 do that