Mission Test of perfomance AO I get 56 FPS with all High and 1920x1080 (antialiasin, postprecessing and anisotripic OFF).
But in control panel ATI catalys I overclock my ati 4890 vapor-x and i get 52 FPS ,I dont undrstand nothing.
With GPU CLOCK 240 MHZ and MEMORY CLOCK 1050 MHZ i Get 56 FPS
With GPU CLOCK 870 MHZ and MEMORY CLOCK 1050 MHZ
I get 52 FPS
I dont understand nothing,help please.
I have I7 860 -2.8GHZ
4 GB RAM
ATI 4890 Vapor-x 1GB