I have, i3-3470 or i3-3475, the last digit not very clear on my image that i took. And im using corsair rm750, i believe its gold rating.
Yeah you are good for any GPU you can afford. If you go above a 1060 then I would recommend changing the CPU for a i7 3770 (or 3770k if you have a Z77 motherboard).
If you can now run a GTX780, you can run a GTX1080ti.
Your GTX780 is a strong card, upgrading to anything less than a GTX1080ti may leave you disappointed.
I have, i3-3470 or i3-3475, the last digit not very clear on my image that i took. And im using corsair rm750, i believe its gold rating.
Yeah you are good for any GPU you can afford. If you go above a 1060 then I would recommend changing the CPU for a i7 3770 (or 3770k if you have a Z77 motherboard).