Hello, as the title says, my PC is getting a really bad performance in 3DMark 11 tests, I mean really bad, I'm talking about 4-10 FPS drop in tests, something is wrong.
I'll really appreciate if you can help me to find the cause of the problem. I'm using a 1440x900 monitor, tests are running in "Extreme" performance, which is 1080p, don't know if this can affect something. I have to say that when I'm playing games like Far Cry 3 in Ultra (1440x900) I don't have problems, FPS are always 30-60 depending of the AA (4x or 8x). Also, I'm pretty sure the temps of CPU and GPU are fine, and as you can see in the captures, GPU usage is okay (99%, afterburner) while 3dMark 11 test is running, same thing for the CPU usage with Prime95 test, 100% and no crashes.
My PC specs:
ASUS SABERTOOTH 990FX R2.0
AMD FX-8350
Corsair Vengeance 8GB (1x8GB) 1600 MHz
Corsair Cooler H100i
WD Blue 1 TB WD10EZEX
And old 500GB Samsung HDD as slave
Sapphire Radeon R9 270 2GB Dual-X
Corsair PSU AX 760W
Windows 8.1 64
I have latest BIOS (default settings), latest GPU drivers and RAM properly configured in BIOS (1600).
Captures for 3DMark 11:
Captures playing:
Captures doing a Prime95 torture test (temp is fine and usage is 100%):
BIOS pictures:
I'll really appreciate if you can help me to find the cause of the problem. I'm using a 1440x900 monitor, tests are running in "Extreme" performance, which is 1080p, don't know if this can affect something. I have to say that when I'm playing games like Far Cry 3 in Ultra (1440x900) I don't have problems, FPS are always 30-60 depending of the AA (4x or 8x). Also, I'm pretty sure the temps of CPU and GPU are fine, and as you can see in the captures, GPU usage is okay (99%, afterburner) while 3dMark 11 test is running, same thing for the CPU usage with Prime95 test, 100% and no crashes.
My PC specs:
ASUS SABERTOOTH 990FX R2.0
AMD FX-8350
Corsair Vengeance 8GB (1x8GB) 1600 MHz
Corsair Cooler H100i
WD Blue 1 TB WD10EZEX
And old 500GB Samsung HDD as slave
Sapphire Radeon R9 270 2GB Dual-X
Corsair PSU AX 760W
Windows 8.1 64
I have latest BIOS (default settings), latest GPU drivers and RAM properly configured in BIOS (1600).
Captures for 3DMark 11:


Captures playing:


Captures doing a Prime95 torture test (temp is fine and usage is 100%):

BIOS pictures:


