An Engadget reader was able to load a clean install of OS X 10.4.9 on his Apple TV, and he’s posted benchmarks to compare its performance with a Mac Mini with 2GB of RAM. The Apple TV gets its ass beaten by the Mini, but not by as wide a margin as you’d think. I think they should have lowered the RAM of the Mini to the default 512MB to have a more “stock” playing field, but that’s just me.