Pentium III 866 is a desktop processor from Intel released on 1 June 2001, and it is in end-of-life production status now. It belongs to Pentium III family and has a Coppermine T architecture. This processor is built on Intel Socket 370, and uses unknown PCI express connection. 180 nm process is used in production.
Processor has 1 cores and 1 threads, with the base frequency of 866 MHz. It has unknown memory support. As for the cache, it supports L1 8K and L2 256K.
