Leveraging the SPARC architecture is a key component of the intellectual property portfolio that differentiates Sun from the system repackagers. Its relentless focus on design excellence in a single microprocessor architecture allows only Sun to offer its customers 15 years of binary compatibility and a tried and true 3rd generation 64-bit processor.UltraSPARC III Cu based systems offer customers investment protection already built in with CPU features including copper interconnect for improved signaling and best-in-class power consumption, shortened 90 nanometer gate length for faster performance, mixed speeds in a chassis, thermal and electrical footprint preservation enabling simple upgrade paths and industry-leading RAS. UltraSPARC III Cu based systems are optimized to meet, or exceed, customer expectations providing real-world performance and reduced Total Cost of Ownership (TCO).