I'm finally buying myself a 5m long HMDI cable so that I can finally hook up my computer to my 42 inch HDTV without having to move the system itself. I'm pretty happy with this, because it means that I can show PC games to my friends without having to awkwardly crowd around the PC monitor. However, I just have two questions in relation to this.
1. Can my PC output to both the monitor and the TV at the same time?
2. What kind of stress does this cause on the video card? Would it render everything twice at different resolutions or is it more efficient than that? (I have a GTX 650ti)
Edit: I don't have the cable yet, so that's why I'm not just experimenting to find out.