A 40nm 16-core 128-thread SPARC® SoC processor

This fourth generation UltraSPARC T3 SoC processor (code named Rainbow Falls) implements sixteen 8-threaded SPARC cores to double on-chip thread count and throughput performance over its previous generation. It enhances glueless scalability to enable up to 512 threads in a 4-way system configuration. The 16-Bank 6MB L2 Cache, the 512GB/s hierarchical crossbar and the 312-lane SerDes I/O of 2.4Tb/s, support the required high bandwidth. This SoC processor integrates a memory controller, PCIE 2.0, 10Gb Ethernet ports, and support for coherency. Multiple clock and power domains optimize performance and power for the SoC components. Extensive power management features, from architecture to circuit techniques, minimize both active and idle power. The 377mm² die includes 1 billion transistors in a flipchip ceramic package with 2117 pins. The chip is fabricated in TSMC´s 40nm high performance process with 11 Cu metals and four transistor types.