The current graphics card only runs games at 1600x900 on low mostly about 25 fps. I would like to increase the settings and still get high fps, but my power supply is 300w. I looked at the watt usage of the radeon 6850 loaded, and it was 127. The proccessor's TDP is only 95, so I was wondering if it's possible to use the 6850. If not, what are my options because I would like to keep the cost to $150 and under ($200 max).