If you still cannot see the writing on the wall please check the average frame rates in the games, they are all stilted towards the Core i5 2500k.
Memory Latency is better on the Intel RIG, almost double the bandwidth too.
Plus he has clocked the FX processor and Core i5 @4.5GHz / 4.4GHz respectively to level out the playing field but can you imagine how much more power the AMD setup will be drawing.