Is more then geforce 460/560 required even for 1x Internal Resolution.

[Xalphenos]

Here are my results for this.
CPU: i5 2500k both stock and OC to 4.5ghz.
GPU: GTX 660
Ram: 8GB DDR3 1600
OS: Windows 8 Pro x64
Game: NTSC
dolphin 3.5-1034
All tests where done on D3d9 4x IR 0 SSAA 16x AF with Per Pixel Lighting enabled. DSP LLE

Stock



Stock + LLE on Thread



OC EFB to Texture



OC EFB to Ram



OC LLE on thread EFB to Texture



OC LLE on Thread EFB to Ram



A few notes:
All the OC tests would eventually hit 59 fps if left alone long enough.
I was surprised by the speed up using efb to ram. I didn't show it in the stock tests because just standing there it didn't make a difference but running through that area had less slow down with efb to ram. EFB to ram + LLE on Thread is the only way I could get 60 fps with only about a 2 fps drop running through that area, sometimes no drop depending on camera angle.