I need a feedback on this rig

[Bahamut86]

Hi all!

I have an old PC system that can be turned into an emulation-dedicated machine, but before spending any money on it (needs a better case and a PSU) I would like to have feedbacks on its performance (since I can't turn it on to test it personally):

• Asus Sabertooth X79
• Intel i7-3930K
• Don't remember the RAMs, but most likely 32GB DDR3 1666Mhz
• NVIDIA GTX 260 (roughly 1GB VRAM)
  

Mostly interested in PS2/Wii/GameCube emulation and everything below. PS3/Wii U would be a nice addition, but AFAIK their emulators are still very rough, so better wait for some optimizations. I am not interested in making the games look prettier with higher resolutions, shaders and filters: as long as the games are running and playable at a decent, steady framerate it will be ok.

My main concern is the GTX 260, but I really don't know the impact of that. If needed, what would be the cheapest replacement?