Allen
Hotshot
Joined: Oct 1999
Posts: 8,854
Ohio USA
I tried a quick overclock using WattMan (included in the driver package). Before using, look up WattMan on Youtube -- its not intuitive at first. However, once you see the "trick", its not hard -- just click, click, click.
I found that the card tends to NOT run at full rated speed all the time. You can use WattMan to force it to run at full rated speed a larger part of the time (you decide how much larger). That, without overclocking, speeds up the FPS very measurably.
In addition, I tried moving the full-speed from 1265 to 1325MHz (a VERY gentle overclock).
That (higher max clock plus more time at max clock) got me to the hoped for greater than 50 percent better than the HD7970 in the test that previously showed 40 percent better. It was 54 percent better. There was no overheating using the Reference Fan.
The extra FPS were, of course, "measurable" not "visible to the unaided eye".
