I have a Dell XPS 8300 with i7-2600 and 16GB RAM. It has a Radeon 6450. It also has an amazing (as in, incredible) 125 Watt power supply. Somehow, it runs.
Recently, I wanted to work with video from my Panasonic TM900, which can output 1920 x 1080 at 60p. It has about 25 mbits per second. I installed Vegas, which seems powerful but difficult for me to quickly learn. Vegas told me that my CPU was fast enough, but my card may be inadequate. It may be right.
When, as a test and just for the heck of it, i double click on the .mts file produced by the TM900, Windows media player loads and runs, and the video I see has slowdowns and speedups, and it looks a little "foggy" (by which I mean some areas appear compressed, and others sharp). This is very much unlike the video I see when I shoot video with my Panasonic GH2 still/video camera at its top unhacked capability of 1920 x 1080 30p, which looks much better.
So, I thought to ugrade the video card from the 6450 to a Radeon 6870, or 6850, or 6770. I thought this might help with the video issues I am having. However, the power supply recommendations for the 6870 by the manufacturer is 500 Watt (even for the 6450 it recommends 400 watt). Dell, God bless their little hearts, shipped this unit with a 125 Watt power supply.
Can I upgrade? Second, will this deal with the video issue? Thank you.