Worldwide PC microprocessor shipments slowed notably in Q1 2008, resulting in sequential growth of -9.2% over Q4 2007. In YOY comparisons, overall unit shipments and market revenue grew by 25.7% and 15.9% respectively, according to IDC. Shipments of processors for desktop PCs led the slowdown in Q1 2008, with sequential growth of -11.9%. Processors designed for mobile PCs and servers faired slightly better, with growth of -5.9% and -6.0% respectively compared to Q4 2007. All three segments experienced solid YTY growth, however, led by a 42.8% increase in microprocessor shipments for mobile PCs.