A 32nm Westmere-EX Xeon® enterprise processor

The next-generation enterprise Xeon ® processor consists of 10 Westmere 32nm cores and a shared inclusive L3 cache (LLC) integrated on a monolith ic die, with link-based l/Os. This paper focuses on the innovations and circuit optimizations over the predecessor targeting idle power reduction, robust high-speed I/O links, and performance per watt improvements. The processor is implemented in 32nm CMOS using high-κ metal gate transistors and nine cop per interconnect layers.