Hi, I've made some performance tests on my laptop using Dolphin 4.0-4803, my specs:
AMD A6-3420M overclocked with AMD Overdrive to 2.3GHz (max. 2.4 - default 1.5)
AMD HD6520G 400MHz with 512MBs vram - vram speed: 667MHz - Bandwidth 10,7GB/s
1x 4GB RAM (3.5 avaliable)
Windows 7 SP1 x64
Catalyst 14.9
Dolphin config (D3D and OpenGL configurations are all the same):
http://i.imgur.com/zFCe7Qf.png
http://i.imgur.com/O982jOL.png
http://i.imgur.com/9K5E6uz.png
http://i.imgur.com/caSNnqn.png
http://i.imgur.com/CtBfsp5.png
===
The Legend of Zelda Wind Waker:
Direct3D:
IR 1x: http://i.imgur.com/Gcxj2Wk.png
IR 2x: http://i.imgur.com/uifvu51.png
OpenGL:
IR 1x: http://i.imgur.com/4Mr6fqn.png
IR 2x: http://i.imgur.com/fCH7Gus.png
The Legend of Zelda Twilight Princess (GC version - EFB copy enabled - fast):
Direct3D:
IR 1x: http://i.imgur.com/y7ilhDW.png
IR 2x: http://i.imgur.com/ojP6JzT.png
OpenGL:
IR 1x: http://i.imgur.com/YrjVhJx.png
IR 2x: http://i.imgur.com/xSy015p.png
Super Smash Bros. Melee:
Direct3D:
IR 1x: http://i.imgur.com/CvIxtd1.png - http://i.imgur.com/lNZSfNA.png
IR 2x: http://i.imgur.com/qJvAf2D.png - http://i.imgur.com/NQ3b8ih.png
OpenGL:
IR 1x: http://i.imgur.com/T4IEt9l.png - http://i.imgur.com/wvUMfaX.png
IR 2x: http://i.imgur.com/AnnbV2v.png - http://i.imgur.com/ilZ3uqM.png
Mario Kart Double Dash:
Direct3D:
IR 1x: http://i.imgur.com/VvNyoaK.png
IR 2x: http://i.imgur.com/9VofsNi.png
OpenGL:
IR 1x: http://i.imgur.com/YBE0E6i.png
IR 2x: http://i.imgur.com/6ahzl0R.png
New Super Mario Bros. Wii:
Direct3D:
IR 1x: http://i.imgur.com/RuRlFlN.png - http://i.imgur.com/Gez8sQo.png
IR 2x: http://i.imgur.com/vNYC3vX.png - http://i.imgur.com/EbowXrM.png (bug? background is darker here)
OpenGL:
IR 1x: http://i.imgur.com/dVyC1XB.png - http://i.imgur.com/SkoIS6v.png
IR 2x: http://i.imgur.com/ww0GzIp.png - http://i.imgur.com/I9rCiPt.png (bug? background is brighter here)
Looks like OpenGL is slower than Direct3D on AMD.
Sorry if I made some mistake, I don't talk English very well.
AMD A6-3420M overclocked with AMD Overdrive to 2.3GHz (max. 2.4 - default 1.5)
AMD HD6520G 400MHz with 512MBs vram - vram speed: 667MHz - Bandwidth 10,7GB/s
1x 4GB RAM (3.5 avaliable)
Windows 7 SP1 x64
Catalyst 14.9
Dolphin config (D3D and OpenGL configurations are all the same):
http://i.imgur.com/zFCe7Qf.png
http://i.imgur.com/O982jOL.png
http://i.imgur.com/9K5E6uz.png
http://i.imgur.com/caSNnqn.png
http://i.imgur.com/CtBfsp5.png
===
The Legend of Zelda Wind Waker:
Direct3D:
IR 1x: http://i.imgur.com/Gcxj2Wk.png
IR 2x: http://i.imgur.com/uifvu51.png
OpenGL:
IR 1x: http://i.imgur.com/4Mr6fqn.png
IR 2x: http://i.imgur.com/fCH7Gus.png
The Legend of Zelda Twilight Princess (GC version - EFB copy enabled - fast):
Direct3D:
IR 1x: http://i.imgur.com/y7ilhDW.png
IR 2x: http://i.imgur.com/ojP6JzT.png
OpenGL:
IR 1x: http://i.imgur.com/YrjVhJx.png
IR 2x: http://i.imgur.com/xSy015p.png
Super Smash Bros. Melee:
Direct3D:
IR 1x: http://i.imgur.com/CvIxtd1.png - http://i.imgur.com/lNZSfNA.png
IR 2x: http://i.imgur.com/qJvAf2D.png - http://i.imgur.com/NQ3b8ih.png
OpenGL:
IR 1x: http://i.imgur.com/T4IEt9l.png - http://i.imgur.com/wvUMfaX.png
IR 2x: http://i.imgur.com/AnnbV2v.png - http://i.imgur.com/ilZ3uqM.png
Mario Kart Double Dash:
Direct3D:
IR 1x: http://i.imgur.com/VvNyoaK.png
IR 2x: http://i.imgur.com/9VofsNi.png
OpenGL:
IR 1x: http://i.imgur.com/YBE0E6i.png
IR 2x: http://i.imgur.com/6ahzl0R.png
New Super Mario Bros. Wii:
Direct3D:
IR 1x: http://i.imgur.com/RuRlFlN.png - http://i.imgur.com/Gez8sQo.png
IR 2x: http://i.imgur.com/vNYC3vX.png - http://i.imgur.com/EbowXrM.png (bug? background is darker here)
OpenGL:
IR 1x: http://i.imgur.com/dVyC1XB.png - http://i.imgur.com/SkoIS6v.png
IR 2x: http://i.imgur.com/ww0GzIp.png - http://i.imgur.com/I9rCiPt.png (bug? background is brighter here)
Looks like OpenGL is slower than Direct3D on AMD.
Sorry if I made some mistake, I don't talk English very well.