AMD achieved a marketshare of 21.4 percent in the fourth quarter of 2005, a market research report from Mercury Research concludes. This is the highest market share for AMD against Intel in years.
The chipmaker's share grew from 17.7 percent in the third quarter, on strong gains in all three of those segments. Mercury Research's principal analyst Dean McCarron confirmed the numbers, which were provided by AMD, but declined to confirm Intel's market share during the fourth quarter until the final numbers are released next week.
However, Intel and AMD accounted for 98.6 percent of the x86 processor market in the third quarter, making Intel's share numbers simple to estimate. Assuming Intel and AMD kept 98.6 percent of the market in the fourth quarter, Intel's market share would have been around 77 percent.