With the 7nm Zen 2 architecture, AMD has its most competitive product in many years. It will be interesting to see how the new Ryzen 3000 series helps AMD to recapture marketshare it lost to Intel over the past decade or so. So far, AMD has seen its desktop CPU markethare rise from the low teens to the high teens, according to statistics published by Mercury Research. In Q2 2019, AMD's desktop marketshare was 17.1 percent, flat versus the previous quarter and up 4.8 percent year-over-year.
Desktop share didn't change this quarter, but AMD has gained 4.8 points of share on year from both Intel and VIA, entirely due to Ryzen's growth. The flat share is due to both Intel and AMD having proportional lower shipments in the second quarter for differing reasons. Intel had supply constraints on low-end CPUs, and AMD was transitioning from Ryzen 2000 to Ryzen 3000 products and transitions usually cause a small dip as inventory is burned off and the new products ramp up. - Dean McCarron, Mercury Research
Tom's Hardware has an overview of the full Mercury Research report over here.