AMD pushes their older fab plant past it's max after claiming 20% of the x86 market share. Fab 30, capable of starting 20000 wafer max, is claimed to start 30000, or so AMD estimates.

Article

I wonder what VIA's market share in x86 is, im willing to bet somewhere on the order of 5-10%

It's nearly nothing in the US but i think they're doing quite well over seas. VIA is more into the embedded microprocessors anyway~