07-31-2014, 09:26 PM
^What TheDax said. Look for the Surface Format Optimization option and disable it.
Unfortunately, since I do not own a 7xxx/R series card (with the GCN architecture), I'm not so sure which drivers would be best for your card. They may very well have their own sweet spot when it comes to drivers that are best for PPSSPP.
When it comes to AMD drivers and OpenGL applications, newest doesn't always mean best.
If you're willing to get to the bottom of the issue, you could experiment with older drivers from the 14.x series until you find one that works well with PPSSPP.
Unfortunately, since I do not own a 7xxx/R series card (with the GCN architecture), I'm not so sure which drivers would be best for your card. They may very well have their own sweet spot when it comes to drivers that are best for PPSSPP.
When it comes to AMD drivers and OpenGL applications, newest doesn't always mean best.
If you're willing to get to the bottom of the issue, you could experiment with older drivers from the 14.x series until you find one that works well with PPSSPP.
PPSSPP Modern Testbed:-
Intel Core i5 4690K @ 4.0 GHz
NVIDIA Geforce GTX 760 2GB GDDR5 VRAM @ 1138/6500 Mhz
16 GB DDR3 RAM @ 1600 MHz
Windows 7 x64 SP1
PPSSPP Ancient Testing Rig:-
Intel Core 2 Duo T9550 @ 2.8GHz
ATI Mobility Radeon 4670 1GB GDDR3 VRAM @ 843/882 MHz
8 GB DDR3 RAM @ 1066 MHz
Windows 7 x64 SP1
Intel Core i5 4690K @ 4.0 GHz
NVIDIA Geforce GTX 760 2GB GDDR5 VRAM @ 1138/6500 Mhz
16 GB DDR3 RAM @ 1600 MHz
Windows 7 x64 SP1
PPSSPP Ancient Testing Rig:-
Intel Core 2 Duo T9550 @ 2.8GHz
ATI Mobility Radeon 4670 1GB GDDR3 VRAM @ 843/882 MHz
8 GB DDR3 RAM @ 1066 MHz
Windows 7 x64 SP1