PA-8700
The PA-8700 (PCX-W2), code-named Piranha, is a further development of the PA-8600. Introduced in August 2001, it operated at 625 to 750 MHz. Improvements were the implementation of data prefetching, a quasi-LRU replacement policy for the data cache, and a larger 44-bit physical address space to address 16 TB of physical memory. The PA-8700 also has larger instruction and data caches, increased in capacity by 50% to 0.75 MB and 1.5 MB, respectively. The PA-8700 was fabricated by IBM Microelectronics in a 0.18 µm silicon on insulator (SOI) CMOS process with seven levels of copper interconnect and low-K dielectric.
Read more about this topic: PA-8000