During AMD's second quarter earnings call, CFO Devinder Kumar shed some light on the decline of demand from the cryptocurrency market. AMD estimates total blockchain-related revenue came in at about 6 percent of overall revenue in Q2 2018, down from 10 percent in Q1 2018:
Strong channel and data center demand drove year-over-year Graphics revenue increases. Sequentially Graphics revenue was down primarily driven by lower blockchain sales partially offset by stronger data center sales. We believe blockchain-related revenue declined from approximately 10% of our revenue in the first quarter to approximately 6% of our overall revenue in the second quarter.
AMD expects blockchain revenue will be down in the second half. For the full year, it's expected to account for a mid-single-digit percentage of AMD's total revenue.