The problem is that, aside from the 1 BF4 graph (which may very well be a mix up of numbers on the part of the author), the OC still outperforms the stock results on every game they tested. In order for the card to be throttling, it would have to be throttling at both stock and overclocked, yet the throttle when OC would still not be as severe as the throttle when not overclocked?
It just doesn't make sense. Reverse the numbers on the apples-to-apples BF4 graph and everything checks out. The OC'd results beating stock across the board, the scaling, the power consumption of stock vs. overclocked....
Yeah, no throttle going on here, other than the 780 TI throttling the 290x.