They're comparing an already awful looking old game made for an old game console to a brand new, good looking game using DirectX 10 and specifically built for Windows PCs.
Yeah, that's what I meant with 'great'. :)
Basically, it looks like the best you could do with DirectX 9 is Halo 1. And they took one of the worst shots of it, nonetheless. While DirectX 10 is all Crysis, of course!