PowerColor's HD 7790 Turbo Duo is a factory overclocked card so you already see a bump in performance over a reference design. To go a little further up the performance ladder you only need to push the sliders up in either PowerColor's own PowerUp Tuner or any one of the popular utilities available on the web. Sadly I ran into the same limits I experienced when looking at a competing card: 1200MHz (core) and 1600MHz (memory) were the limits seemingly locked in the vBIOS. It's great to max out the sliders but there seems like so much more is left on the table. I guess everyone can get a piece of the pie pretty easily.