Market intelligence firm Mercury Research published its findings on the x86 processor market towards the end of 2019, in which AMD has posted growth in all segments (not counting IoT or semi-custom). AMD held 18.3 percent of the desktop x86 processor market, according to the report. a 5-year high. The company's EPYC line of server processors face a more uphill battle against enterprises' entrenched brand loyalties to Intel. The company holds 4.5 percent of the server processor market, but growing 0.2 percent points versus the previous quarter, and 1.4 percentage points vs. the previous year. The last time AMD held such a market share in the server x86 processor market was in Q3-2013.AMD's mobile processor market share may come as a surprise to some. According to Mercury Research, the company holds 16.2 percent of the mobile x86 processor market, which is almost as much as its desktop market. This is probably propelled by the popularity of AMD APUs and low-power CPUs in the cost-effective notebook market segments. AMD is now eyeing higher market segments with its Ryzen 4000 "Renoir" processors that make landfall this year. AMD is growing faster in the mobile space than desktop, with 1.5 percentage points growth in just Q4, and 4 percentage points year-over-year. AMD's mobile market share was this high back in Q2-2013. Mercury Research pins AMD's overall hold over the x86 market at 15.5%, averaged on all segments, minus semi-custom and IoT.