Oh, definitely. It was pretty beast.
As for your dads Rig, I'm sure it was just as beast. To be honest, I favor Radeon cards over nVidia cards, because if you game as much as I do, you notice a big difference in graphics (A lot of people claim there is no difference between graphics in nVidia and Radeon, but there is - Radeon colors pop out more, giving more of a "Realistic" feel, where nVidia graphics are a tad bit more "cartoonish"; However, nVidia runs smoother than Radeon, most likely from the rendering). I just use nVidia most of the time, because it gets better Benchmark scores.