This is the latest report from Jon Peddie Research on the GPUs used in PCs. It is reporting on the results of Q1'19 GPU shipments worldwide.
AMD showed a 21% gain in desktop discrete GPU shipments in Q1’19. The PC GPU market decreased year-to-year by -10.7%, sequentially GPU shipments decreased -18.6%
Overall GPU shipments decreased -18.62% from last quarter, AMD shipments decreased -4.6% Nvidia decreased -12.7% and Intel's shipments, decreased -22.5%.
AMD's market share from last quarter increased by 2.3%, Intel's decreased -3.4%, and Nvidia's market share increased by 1.10%, as indicated in the following chart.
Year-to-year total GPU shipments decreased -10.7%, desktop graphics decreased -21%, notebooks decreased -3%.