Try this:
1. Download and install the latest (BETA) drivers for your GPU from AMD's official web site
2. Download the latest dev. version of Dolphin from HERE (NOTE: You need the VC2015 [64-bit] runtime as well)
3. Select the Direct3D graphics backend in Dolphin (OpenGL is still slow as ****)
4. Turn OFF VSync, set the Frame Limit to 60 and enable Borderless Fullscreen
5. Do NOT use (disable) any type of anti-aliasing
6. Select an output resolution that matches your display's native res., set the IR to 1x and leave the other settings at default.
7. Then try increasing the IR until you find a multiplier that provides decent image quality without a significant performance drop.
Your GPU should be fast enough to run the most demanding titles at 4xIR, medium stuff at 5xIR and lightweight ones at up to 6xIR. If you overclock the GPU and VRAM to match the HD6870 clocks, you can increase the IR a notch higher.
1. Download and install the latest (BETA) drivers for your GPU from AMD's official web site
2. Download the latest dev. version of Dolphin from HERE (NOTE: You need the VC2015 [64-bit] runtime as well)
3. Select the Direct3D graphics backend in Dolphin (OpenGL is still slow as ****)
4. Turn OFF VSync, set the Frame Limit to 60 and enable Borderless Fullscreen
5. Do NOT use (disable) any type of anti-aliasing
6. Select an output resolution that matches your display's native res., set the IR to 1x and leave the other settings at default.
7. Then try increasing the IR until you find a multiplier that provides decent image quality without a significant performance drop.
Your GPU should be fast enough to run the most demanding titles at 4xIR, medium stuff at 5xIR and lightweight ones at up to 6xIR. If you overclock the GPU and VRAM to match the HD6870 clocks, you can increase the IR a notch higher.