I am looking for a graphics card to go with my new display (Samsung U28H750 (28", 3840x2160) ) on my Tharsis T90.17 Intel i7-2600, 8GB, WIn10. The "current" graphics card (NIVIDIA GeForce GTX 460) has a maximum resolution of 1920 x 1080. I am absolutely no gamer, but I need 3 screens, one of which is now UHD and there may be 2 of them in future instead of 2x 24" for the 28''. Does such a card swallow the monitors for image editing etc. or would 6GB soon be necessary? Many thanks for your information!