Graphic Card Replacement.
My current setup - W7 on a Dell 8700 w/i7-4770CPU@ 3.4GHz, 8G RAM & an OEM GTX 645 vid card.
Will It Run suggests a NVIDIA GTX 780 3GB vid card. I only see used ones on Amazon so I'm looking at a GTX 970 series (I am price sensitive).
Then confusion sets in -...