So I am now in the market for an apartment in August rather than continuing to live on campus and seeing as I would have to pay my own electricity bill I am wondering if this would be the opportune time to upgrade the graphics cards in my desktop? While my laptop is more than enough for any game I throw at it, having my desktop as well with me would enable me to play games with friends and such who don't have the same level of computer hardware that I do. My only concern is exactly how bad the damage would be on electric bill running crossfire 6950's, would the money saved by going to a 670 or 680 be worth it in the long run? I have no idea what kind of effect my desktop has on the electric bill at home because I don't pay it and there were never any complaints about it going up drastically 6950's at max will take about 182 watts so I could assume something to the effect of 364 watts or more since I run them at past 6970 clocks. Assuming I were to get a 680 I would be sitting at around 200 watts maximum which may very well be half of what my 6950's would take. Any advice on this front would be greatly appreciated.