Soldato
We do but there is no problem with dx on amd and there was no complaining about smoothness before mantle got released. The people that had mantle working from release noticed the smoothness straight away. Those that can't get mantle to work are very happy for the most part about dx and bf4 performance.
I bet most amd dx users thought there came could not run any smoother than it was before they tried mantle.
People were saying all over that DX is choppy with their AMD cards and that Mantle made this smoother. The line is convoluted because most people here who are vocal about it have multi-GPU.
I expect there to be tangible gains and increases in smoothness in those set ups.
That's the other thing people tend to forget. There might not really be a need to overclock your cpu any more with mantle which has it's own benefits.
It does but that's a tangent to the point being made. Either way until Mantle is adopted across the market people generally won't turn their CPU overclock off to play BF4 because it isn't needed and then back on when it may be required for the other 99% of games .