You chart doesn't factor in overclock. The AMD chips are overclocked within their life
What overclock are you talking about? If its the 4ghz, that's no where near its life.
If the 8320 had one core enabled and the 6300 did too, the 8320 would win. It has a higher IPC.
No its not. The 6300 and 8320 or any Vishera has the same IPC. They are really all the same. The X4 and X6 just has two or one module disabled. One core on any of them have the same IPC.