Some German shop offers me free 4K monitor. I just got new headset, and new harddrives. I am comforted with my mouse and keyboard. I have 16 ram. But my computer is 30 months old. Should I buy new GPU a CPU for having 4K gaming? Would I need a new motherboard? Would I sell the old ones well? Is GTX 970 enough for having 4K gaming for something about there or four years, without much lags and with not much games running in 2560p or even less?
This is my PC:
GPU:Sapphire HD 7850 2GB OC GDDR5
CPU:Intel Core i5-3570
Motherboard:MSI Z77A-GD65 - Intel Z77
RAM:2x Kingston HyperX Blu Red DDR3 8GB (2x4GB) 1600MHz
My harddrives have something about 3 TBs.
What HDMI would I need?