Even a 750ti and an i3 will destroy the consoles. MGS5 on consoles has several things (like draw distance) at levels below PCs lowest. This gap will only widen as time goes on.
I'm finally ready to make the jump, most of the games I want on consoles are now on PC, even many of the big PS3 releases are there now. (FFXIII, Valkyria Chronicles, Tales of...) There really isn't much holding me to consoles anymore, and the emulation potential means everything Wii and older is also available for me to play, all on one device. And with Microsoft's big push for PC cross play, soon every Xbox title I want will also be on PC. (Most already are) That leaves the Playstation first party as the only reason I have left to own a console, and since I already have a PS4, that is covered. A rental or two a year and I'm good there, Steam sales for everything else.
Fallout 4 will be glorious at 1080p, 60fps with everything cranked up!