Core 2 Extreme QX9775 is a desktop processor from Intel released on 24 March 2008, and it is in end-of-life production status now. It belongs to Core 2 Extreme family and has a Yorkfield architecture. This processor is built on Intel Socket 771, and uses unknown PCI express connection. 45 nm process is used in production.
Processor has 4 cores and 4 threads, with the base frequency of 3.2 GHz. It has DDR2 memory support. As for the cache, it supports L1 64K (per core) and L2 12MB (shared).