Fastmac today announced it has lowered prices on its top-rated G4 AGP processor upgrades by 30%. Upgrades from 1.4 GHz to 1.5 GHz now start at US$249. The company also announced a new “SuperGrade” bundle that features a 16x Double Layer SuperDrive and Mac OS X 10.4 for $99, representing a savings of over $100 if bought individually. “Tests have shown that our Motorola 7455-based G4 upgrades with Level 3 Cache provide 1/2 the speed of a 2 GHz G5 for just 1/8th the cost,” said Michael Lowdermilk, Business Development Manager for Fastmac Performance Upgrades. “Adding the SuperGrade bundle gives maximum performance with minimal cost.”