Intel's marketshare rose to 81.2 percent, up from 80.0 percent in Q2 2008 and 76.2 percent a year ago. AMD's marketshare dropped from 18.8 percent in Q2 2008 to 17.7 percent in Q3 2008. A year ago, AMD's marketshare was 23.0 percent but the chip maker has gradually been losing ground as its chips aren't competitive enough compared to what Intel has to offer. According to Mercury Research, one of the reasons for AMD's share decline was their comparatively weaker mobile mix. Notebooks and netbooks are getting more popular and AMD doesn't have what it takes to compete against the Centrino platform or the Intel Atom processor.
Taiwanese processor maker VIA also lost some marketshare, it was down to 1.1 percent from 1.3 percent a quarter ago, but still up from 0.8 percent a year ago.