AMD has registered the steepest single-quarter growth in server CPU sales in 15 years, for Q1-2021, according to Mercury Research data accessed by Tom's Hardware. "While we don't often discuss average selling prices, we note that this quarter saw unusually strong price moves for AMD -- as AMD shipped fewer low-end parts and more high-end parts, as well as shipping many more server parts, the company's average selling price increased significantly," said Dean McCarron of Mercury Research. Unfortunately, the growth in its EPYC server CPU sales also coincides with a drop in notebook CPU sales. It's also interesting to note here that AMD's Q1-2021 performance with server CPUs also coincides with a 20% drop in revenue for its Data Center Group, the business unit responsible for sales of its Xeon server processors.