Wile EIt really doesn't have everything to do with performance, it does have everything to do with marketing. Remember, the average user isn't likely to notice a difference between, and I'm just pulling an example out of my arse here, an AMD 3800+ X2 and say an Intel E6400 in computers with otherwise identical specs. For surfing and office apps, it just isn't that big of a deal. Gamers, enthusiasts, and a/v content producers are the only ones that will notice a huge difference. (AKA: The people frequenting this forum, and others like it) And last I checked, AMD still had the lead in energy efficiency and price, which can be a huge selling point for the average user. That's not even taking into consideration the OEM and Server markets. It will all boil down to nothing more than marketing strategy on AMD's part.

Wile EMarketing also goes beyond the adds you read in magazines and see on tv. It reaches into the corporate world as well. I'm still saying that if they market themselves properly, 30% is achievable, regardless of processor performance.