these MSI afterburner comes really in handy for the 5800 series..

max u can put on CCC is 900mhz/1300mhz.. unless if u flash the card with an ASUS bios to run it higher

and if u use the msi burner.. u can manually set the voltage (up to 1.35vdc which is considered max point for these cards), fan speed and clocks.. and the clocks max u can put 1275mhz (core) and 1560 mhz (mem).. make sure u have good cooling if u want to use these, especially on ur VDDC/VDI temps