Updates to this story
IDC said that sales of PC CPUs worldwide fell by 2.9 percent in the second calendar quarter compared to the first calendar quarter of 2011 and were flat compared to the second quarter of 2010.
Revenues for sales of PC CPUs amounted to $9.49 billion, falling four percent compared to the preceding quarter. Integrated graphics processors now account for over 60 percent of CPU volume.
AMD appears to have taken some market share from Intel. Market share for Intel was 79.3 percent, for AMD 20.4 percent. Intel was down 1.5 percent sequentially, AMD up 1.5 percent. The only other X86 CPU vendor, Via, had a market share of 0.3 percent.
And in the notebook space, AMD also gained ground although Intel still has the lion share with 84.4 percent, AMD 15.2 percent.
But in the lucrative server and workstation market, Intel had 94.5 percent share, up 5.5 percent sequentially. AMD only has 5.5 percent share of that market.
For desktops, Intel had 70.9 percent share and AMD 28.9 percent share.