13th Generation Intel® Core™, Intel® Core™ 14th Generation, Intel® Core™ Processor (Series 1) and (Series 2), Intel® Xeon™ E 2400 Processor and Intel® Xeon™ 6300 Processor

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.
Supporting Intel® Core™ 14th Generation Processor for S, HX formerly known As Raptor Lake Refresh.
Supporting Intel® Core™ Processor (Series 1) for U Processor Line Platform, formerly known As Raptor Lake refresh
Supporting Intel® Core™ Processor (Series 2) for H Processor Line Platform, formerly known As Raptor Lake Refresh.
Supporting Intel® Xeon® E 2400 Processor and Intel® Xeon® 6300 Processor, formerly known As Raptor Lake–E Refresh

ID Date Version Classification
743844 05/30/2025 Public
Document Table of Contents

PCI Express* Graphics (PEG) Group DC Specifications

PCI Express* Graphics (PEG) Group DC Specifications

Symbol

Parameter

Min

Typ

Max

Units

Notes1

ZTX-DIFF-DC

DC Differential Tx Impedance

80

100

120

Ω

1, 5

ZRX-DC

DC Common Mode Rx Impedance

40

50

60

Ω

1, 4

ZRX-DIFF-DC

DC Differential Rx Impedance

80

120

Ω

1

PEG_​RCOMP

resistance compensation

24.75

25

25.25

Ω

2, 3

Notes:
  1. Refer to PCIe* Interface for more details.
  2. Low impedance defined during signaling. Parameter is captured for 5.0 GHz by RLTX-DIFF.
  3. PEG_​RCOMP resistance should be provided on the system board with 1% resistors. COMP resistors are to VCCIO_​OUT. PEG_​RCOMP- Intel allows using 24.9 Ω 1% resistors.
  4. DC impedance limits are needed to ensure Receiver detect.
  5. The Rx DC Common Mode Impedance should be present when the Receiver terminations are first enabled to ensure that the Receiver Detect occurs properly. Compensation of this  impedance can start immediately and the 15 Rx Common Mode Impedance (constrained by RLRX-CM to 50 Ω ±20%) should be within the specified range by the time Detect is entered.