http://www.icrontic.com/modules.php?op=modload&name=Sections&file=index&req=printpage&artid=113
If you could change something about the Xbox design-wise, what would
it be?
I would not use a standard PC architecture, and go for a more
integrated, lower-cost design. There is a lot of silicon and power
wasted in the current port of a PC to the Xbox. There are probably no
embedded processor architectures that burn more power or take more
area than an x86. The entire Xbox console is unoptimized for gaming.
For example, the Xbox uses an inferior unified memory architecture
(UMA) because it's "cheaper" (yet they have the most expensive to
manufacture console). They tout its high bandwidth, but they never
mention that the latency is 10x worse than the competition, and that
the available bandwidth is being split among the processor, video and
audio.