 The design was the first Sun/Oracle SPARC processor with out-of-order execution and was the first processor in the SPARC T-Series family to include the ability to issue more than one instruction per cycle to a core's execution units.The T4 processor was officially introduced as part of Oracle's SPARC T4 servers in September 2011.Initial product releases of a single processor T4-1 rack server ran at 2.85 GHz.