Just wanted to update you on a few things regarding using a PC. This Xmas I treated myself to a Nvidia GTX Titan
If you want to run all your games at UHD 4k then you must
get this card as it has 6GB of video ram. The latest GTX 780Ti would be great except it only has 3GB of video ram which when playing Crysis 2 or 3 actually runs out of ram at UHD 4k definitions. Other games may suffer too.
Almost every game can be maxed out to ultra settings and get decent frame rates (FPS) with the Titan even at UHD 4k.
Only problem as we all know that at UHD 4k you can't do 3d simulation. You need to be at 1920x1080 to do that. It still upscales and looks glorious. I tried Witcher 2 and at UHD 4k with only my single Titan I find the FPS is a little low so I do play that at 1920x1080.
If you're a huge 3d fan like me then 1 Titan will last you years as you have to play at 1920x1080 for 3d. If you want though 2 x Titans in SLI will massively improve your FPS at UHD 4k to outstanding levels.
I plan to buy a motherboard with 4 slots for 4 Titans and may add them 1 Xmas or Birthday at a time in anticipation of further price drops.
Playing UHD 4k videos from You Tube and alike (using the VLC Player) is glorious. Finally pumping true UHD 4k into your tv is incredibly wonderful. I am in the UK so we don't get the 'Cheese Wheel'
I hope this helps some of you especially about needing the 6GB of video ram on your video card for maxed out Ultra gaming