I'll throw this out for something to think about. My last computer was a pentium d 1gb ram and a geforce gt 220. I failed to install the nvidia drivers, 5 times, then the card died. Rather than get another graphics card I went for a new ivy bridge system and use the on cpu Intel HD4000 graphics. So far it is flawlees with Mint. Everything works exactly as I would expect. With the old system I could play 1080p video from dvd or utube fairly well. Some videos were skippy. CPU use was 50% and up. Now on the new system everything is perfect. I can play a 1080p 60 fps video and the cpu sits at idle speed of 1.6 ghz and about 20-25 % use. The only time the cpu hits 3.4ghz is the occasional one second blip when it must be performing system functions. My power supply, an Antec 430, doesn't even get warm even on a 90 degree day. The next time I order parts I'm getting a watt meter to know for sure what the power use is. But, I'll bet the ivy bridge system is using around $50. less per year. Something to think about if you're electric bill conscious and not a serious gamer with an absolute need for a powerful graphics card.
i5 3570k, ASRock z77 Extreme 4, 8 Gb Ripjaws 1600, Antec 430w psu, HVR 1600 tv tuner, custom case- marble top, oak face. Carver & DCM Time Window sound system. Mint 14 KDE.