Theres been a lot of false ideas about what each GPU can do so since I program in my free time I'll explain some things to you guys in a way that hopefully (one Xbox fan or Sony fans gonna say I was biased) clear some things up.
The reason this guy states the 360's GPU is better than the PS3's is because based off whats known about the RSX its not that good. The RSX is sort of last gen in its design. It's good for what was released prior to the nVidia GeForce 8800. In the last gen...
Had Eric as a teacher a few months back, hes a great guy. He goes over everything here in his class. He always came back to one thing about optimization, "It's never intuitive". Especially when we get to the one about less code means more optimized. Writing a bunch of SIMD lines takes longer and is usually much more code than just looping through it in a for loop.
Good Guy, glad he got it on the front of Gamasutra.