I tried 15.11.1beta and actually i got Crimson 16.3 with Power Efficiency disabled bit there's no difference. I tried DVI and HDMI for the same result.
In rainbow six, i can't play in full screen. In bf3, i got 60 fps (Vsync activated) and for no reason i drop to 50. When i try BF3 with no Vsync, the game is unplayable.
I'm very disappointed cause my older HD7870 XT 2Go (RIP) had better perfomances....
Sapphire R9 380X nitro
power supply 500W
Win 7 64bits
Like is said my power suplly is a 500W. I got the R9 380X, 1 SSD, 3 HDD sata, 5 fans (2 for the gpu, a big one for the cpu and 2 in the case) and 4 memory modules.
Is my power suplly enough ?
(sorry for the bad english...)