Something I figured out on my laptop but it may be different for you. All I know is that I get a massive speedup with these settings. But that could also be because I have an i5 2450M.
.:Graphics Settings:.
Backend: Direct 3D9
Fullscreen Resolution: 1366x768
Aspect Ratio: Stretch to Window
Internal Resolution: 2x Native (1280x1056)
Anti Aliasing: Off
Anisotropic Filtering: 16x
Scaled EBF Copies: Checked
Per Pixel Lighting: Checked
Force Texture Filtering: Checked
EBF Copies to RAM
Disable Per-Pixel Depth: Checked
OpenCL Texture Decoder: Checked
OpenMP Texture Decoder: Checked
Try that on Twilight Princess. I am also using the latest version of Dolphin.
.:Graphics Settings:.
Backend: Direct 3D9
Fullscreen Resolution: 1366x768
Aspect Ratio: Stretch to Window
Internal Resolution: 2x Native (1280x1056)
Anti Aliasing: Off
Anisotropic Filtering: 16x
Scaled EBF Copies: Checked
Per Pixel Lighting: Checked
Force Texture Filtering: Checked
EBF Copies to RAM
Disable Per-Pixel Depth: Checked
OpenCL Texture Decoder: Checked
OpenMP Texture Decoder: Checked
Try that on Twilight Princess. I am also using the latest version of Dolphin.
.:My Laptop Specs:.
Model: Acer Aspire AS7750G-6857 17.3" LED
Operating System: Windows 7 Home Premium x64
Processor/CPU: Intel 2nd Generation Core i5 2450M (Clocked at 2.9GHz with ThrottleStop)
Integrated Video Card/GPU: Intel HD 3000
Dedicated Video Card/GPU: AMD Radeon HD 7670M
Memory/RAM: 6GB DDR3 SDRAM
Model: Acer Aspire AS7750G-6857 17.3" LED
Operating System: Windows 7 Home Premium x64
Processor/CPU: Intel 2nd Generation Core i5 2450M (Clocked at 2.9GHz with ThrottleStop)
Integrated Video Card/GPU: Intel HD 3000
Dedicated Video Card/GPU: AMD Radeon HD 7670M
Memory/RAM: 6GB DDR3 SDRAM