Intel® Core™ Ultra Processor

Datasheet, Volume 1 of 2
Supporting Intel® Core™ Ultra Processor for U/H/U-Type4-series Platforms, formerly known as Meteor Lake

ID Date Version Classification
792044 05/09/2025 Public
Document Table of Contents

Read Processor ID (RDPID)

A companion instruction that returns the current logical processor's ID and provides a faster alternative to using the RDTSCP instruction.

RDPID specifications and functional descriptions are included in the Intel® 64 Architectures Software Developer’s Manual, Volume 2. Available at:

http://www.intel.com/products/processor/manuals