Do i need a good video card for apple tv?

I have a decent video card, but will be getting an apple tv soon. When I play my current movies on my machine my video card wont play them up to full par, but I will only be watching them on apple tv after i get it. Will I need a better video card or will apple tv accomplish this?|||So long as the files you have are directly Appe TV compatible, it won't matter. The computer just serves the file to the Apple TV, which does the decoding.