PA-8900
The PA-8900, code-named Shortfin, was a derivative of the PA-8800. It was the last PA-RISC microprocessor to be developed and was introduced on 31 May 2005 when systems using the microprocessor became available. It was used in the HP 9000 servers and the C8000 workstation. It operated at 0.8, 0.9, 1.0 and 1.1 GHz. It is not a die shrink of the PA-8800, as was earlier rumored. The L2 cache was doubled in capacity to 64 MB, has lower latency, and better error detection and correction on caches. It uses the McKinley system bus and was compatible with Itanium 2 chipsets such as the HP zx1. There were no microarchitecture changes, but the floating-point unit and on-die cache circuitry was redesigned to reduce power consumption, and each core subsequently dissipated approximately 35 W at 1.0 GHz.
Read more about this topic: PA-8000