My PC has a 2500K cpu, a 560 Ti GPU, and a motherboard (LGA 1155) with PCIe 3.0 slots. I am aware that the performance drop from a curent (600 & 700 series) PCIe 3.0 GPU but am curious about the 800 series coming out. If I go with a GPU from the 700 series I can run it now with almost no performance loss but if I wait for the 800 series I believe that I will need an ivy bridge cpu if the GPU's use more of the bandwith of the PCIe 3.0 slots. What should I do?
I am trying to only purchase a GPU that will keep my PC going for another couple of years. I just wanted to know if something like a 770 was worth it since I would only need to purchase the card or the alternate route which is a 800 series card and an ivy bridge cpu.