In the first quarter of 2026, AMD achieved significant milestones across the x86 CPU market, recording record-breaking revenue shares in both server and client segments according to data from Mercury Research. While Intel maintained its dominance in total unit shipments, AMD's ability to command higher prices for its premium processors allowed it to capture a larger portion of the market value. AMD's server business saw the most dramatic growth. The company's server CPU unit share rose to 33.2%, an increase from 28.8% in the previous quarter. More notably, its server revenue share skyrocketed to a record 46.2%, up 5 percentage points from the prior quarter. This indicates that AMD now generates nearly half of all x86 server CPU revenue while shipping roughly one-third of the units. The disparity between unit and revenue share highlights the higher average selling prices of AMD's EPYC processors and their growing adoption in hyperscale cloud providers, enterprise deployments, and AI infrastructure. Intel remains the leader in server shipments with a 66.8% share, but its dominance is eroding as AMD expands its footprint. In the client market, the results were mixed but showed a strategic shift toward profitability. AMD's overall x86 CPU revenue share reached 38.1%, solidifying its financial standing despite holding a smaller portion of total units. The mobile segment was a standout area for AMD, which recorded its strongest quarter ever with a mobile CPU unit share of 28.3% and a revenue share of 28.9%. These figures represent consistent year-over-year growth, driven by expanding availability and success in business and commercial notebook segments traditionally dominated by Intel. Intel retained the majority of the mobile market with a 71.7% share, down from 77.5% a year ago, but the gap is narrowing. Desktop performance presented a different picture. After a record holiday quarter, AMD's desktop CPU unit share dipped to 33.2% in Q1 2026, down from 36.4% in the previous quarter. Intel regained some ground, increasing its desktop share to 66.8%. However, AMD's desktop revenue share remained robust at 37.6%, up 3.2% from the previous year. This suggests that while AMD lost some volume, it maintained strong sales of high-margin premium Ryzen processors. Intel continues to control the vast majority of the client market, holding a 70.4% unit share and nearly 69% of client CPU revenue. Looking ahead, the competitive landscape will likely intensify with Intel's upcoming launch of Nova Lake processors for client systems. While Intel retains shipment leadership and control over the bulk of the consumer PC market, AMD continues to strengthen its position in the most profitable segments of the x86 ecosystem. The first quarter of 2026 demonstrated that AMD is successfully challenging Intel's dominance not just through volume, but by capturing high-value enterprise and premium consumer opportunities.