The IBM 11K0864 is a powerful processor card that features a 1-way 400MHz POWER3-II processor equipped with a 4MB L2 cache. This configuration is designed to boost performance and efficiency in demanding enterprise computing environments. The inclusion of a substantial 4MB L2 cache allows for quicker data access and processing, reducing bottlenecks and significantly improving application execution times. The 400MHz clock speed ensures that the processor can handle a wide variety of tasks with ease, from complex calculations to data-intensive processes. This processor card is built to support high-performance computing tasks, including database management, application development, and large-scale scientific computations. With its advanced features and robust design, the IBM 11K0864 is an excellent choice for upgrading IBM servers and workstations, providing them with enhanced capabilities to meet the needs of modern computing tasks.