13th Generation Intel® Core™ and Intel® Core™ 14th Generation Processors

Datasheet, Volume 1 of 2
Supporting 13th Generation Intel® Core™ Processor for S, H, P, HX, and U Processor Line Platforms, formerly known as Raptor Lake, Intel® Core™ 14th Generation Processor for S, HX, and U Processor Line Platform, formerly known as Raptor Lake Refresh and Intel® Xeon™ E 2400 Processor, formerly known As Raptor Lake–E

ID 743844
Date 03/25/2024

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Document Table of Contents

PCI Express* Architecture

Compatibility with the PCI addressing model is maintained to ensure that all existing applications and drivers operate unchanged.

The PCI Express* configuration uses standard mechanisms as defined in the PCI Plug-and-Play specification.

The processor PCI Express* port supports Gen 4 at 16GT/s uses a 128b/130b encoding and Gen 5 at 32 GT/s uses a 128b/130b encoding

S/HX/S Refresh/HX Refresh/E-Processor Line: The 4 lanes port can operate at 2.5 GT/s, 5 GT/s, 8 GT/s or 16 GT/s.

S/HX/S Refresh/HX Refresh/E-Processor Line: The 16 lanes port can operate at 2.5 GT/s, 5 GT/s, 8 GT/s, 16 GT/s or 32 GT/s**

H/P/PX/U/U Refresh -Processor Line: Each of the 4 lanes ports can operate at 2.5 GT/s, 5 GT/s, 8 GT/s or 16 GT/s.

H-Processor Line: The 8 lane port can operate at 2.5 GT/s, 5 GT/s, 8 GT/s, 16 GT/s or 32 GT/s**

PX-Processor Line: The 8 lane port can operate at 2.5 GT/s, 5 GT/s, 8 GT/s, or 16 GT/s**

The PCI Express* architecture is specified in three layers – Transaction Layer, Data Link Layer, and Physical Layer. Refer to the PCI Express Base Specification 5.0 for details of PCI Express* architecture.