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

Clock Topology

The processor has three reference clocks that drive the various components within the processor:

  • PCIe reference clock (PCTGLK). 100 MHz with SSC.
  • Fixed clock. 38.4 MHz without SSC (crystal clock).

PCTGLK drives the following clock domains:

  • PCIe Controller(s)

Fixed clock drives the following clock domains:

  • Display
  • Serial Voltage Identification (SVID) controller
  • Time Stamp Counters (TSC)
  • USB Type-C* subsystem