I tried a different build now and it's exactly the same. With 4xres, 8xFSAA and 16xAF I get around 20 to 25 FPS, even in the main menu I only get around 22. I don't know how you guys with much weaker systems can run the game with those ultra demanding settings. EDIT: Seems like disabling EFB access makes a huge difference. Could you 8xFSAA guys try how the gam is running for you without that setting. Still I don't know how you managed to get no glitches with FSAA. Must be some setting, I don't know.
Are you talking about the option "Skip EFB access from CPU"? I leave it unchecked so that projectiles are properly aligned, and take a slight (1-2 fps) hit in areas where I lose performance anyway, so the difference is minimal.
My config is slightly altered from Thoraxes' original, but mostly it's the same:
rev 7719m
General:
D3D11 backend
1920x1080
Aspect ratio: auto
v-sync off (running through D3DOverrider, no need to enable through Dolphin)
Use fullscreen checked
Hide mouse cursor on
All other settings unchecked
Enhancements:
Internal Resolution 4x Native
Anti-Aliasing 8 samples
AF 16x
per pixel lighting checked*
force texture filtering checked
*per pixel lighting may cause a glitch in which light shafts show texture seams, I posted examples earlier in this thread but neglected to check if disabling this fixed the issue
Hacks:
Skip EFB access from CPU unchecked
Ignore format changes checked
EFB copies on virtual
EFB disabled
Disable per-pixel depth checked
OpenMP texture decoder checked
all other options unchecked
Everything else is turned off. In the general config menu, I of course have dual core and idle skipping enabled and am running on the JIT Recompiler. Whether or not I lock thread to cores doesn't seem to make a difference.