PC microprocessor sales climbed to $10.9 billion in the fourth quarter of last year, up 1.8 percent sequentially, and up 14.2 percent.
IDC reports that for the entire year, PC microprocessor sales jumped by 13.2 percent to more than $41 billion. Much of the increase was due to higher average selling prices, which added about 9 percent.
Both Intel and AMD were able to gain market share in individual market segments, but it was AMD that came out on top overall. Intel ended the year with 80.1 percent share, down 0.6 points from 2010, while AMD gained 0.7 points to 19.7 percent and Via dropped 0.1 points to 0.2 percent share.
According to IDC, Intel suffered a 2.6 point loss in the mobile segment (down to 83.8 percent), as AMD added 2.7 points bringing it to 16.0 percent. AMD lost in the server and workstation segment where it is now at 5.5 percent, which was down 1.5 points. Intel is overwhelmingly dominant with 94.5 percent (up 1.5 points). In desktop processors, Intel came in at 73.8 percent (+1.7 points), while AMD was down 1.6 points to 26.0 percent.
Other than that, Intel are what I need as their performance is much higher
For example, in this linked review, Toms reconed this i3-2100 has a minimum framerate 18% higher than the AMD FX-4100
http://www.tomshardware.com/reviews/fx-4100-core-i3-2100-gaming-benchmark,3136-9.html
As we can see from the price of these 2 the AMD is £89
http://www.overclockers.co.uk/showproduct.php?prodid=CP-314-AM&groupid=701&catid=1967&subcat=1942
And the intel is £94
http://www.overclockers.co.uk/showproduct.php?prodid=CP-367-IN&groupid=701&catid=6&subcat=1671
Worth the extra £5? I'd say so.
AMD had' not changed it's socket for a long time (and some will say that's a faulty way), and upgrading is still (sometime) more efficient than buy a whole setup, as upgrading from a old 250 euro setup is good but putting aside some expensive parts (love my Asus Crosshair ROG) which is performing even with old components (CPU, memory) better than mid to high level category new components, this is what is called bang for your money.
I'm still trying to get an 6 core AMD cpu and a new gfx to make my rig ready to stand for a fight for at least 2 to 3 years.
For a purchase, charts and performance test aren't always as beneficial as they look like and the only thing that you have to do is research more than the average time the product that anyone wants.
For a new rig, Intel is often a good buy but that doesn't mean that you will not have to upgrade anytime sooner or (later) for the fact.
AMD had for a long time supported legacy and I sure as hell support them if they can give me less troubles for my wallet, if Intel could bring more stability on their market a switchover will always be plausible. And remember that a customer is the one that is choosing to power up a market share not a company.