Specification Sheet

ManualsBrandsIntel ManualsCPU ProcessorsIntel Core i9-9900X X-Series Processor 10 Cores up to 4.4GHz Turbo Unlocked LGA2066 X299 Series 165W Processors (999AC5)

Datasheet, Volume 1 of 2 3

Contents

1 Introduction ..............................................................................................................7

1.1 Processor Feature Details .....................................................................................8

1.2 Supported Technologies .......................................................................................9

1.3 Interfaces ..........................................................................................................9

1.3.1 System Memory Support ...........................................................................9

1.3.2 PCI Express* ......................................................................................... 10

1.3.3 Direct Media Interface............................................................................. 11

1.3.4 Platform Environment Control Interface (PECI) ...........................................12

1.4 Power Management Support ............................................................................... 12

1.4.1 Processor Package and Core States........................................................... 12

1.4.2 System States Support ...........................................................................12

1.4.3 Memory Controller..................................................................................12

1.4.4 PCI Express* ......................................................................................... 12

1.5 Thermal Management Support ............................................................................ 12

1.6 Package Summary............................................................................................. 13

1.7 Terminology ..................................................................................................... 13

1.8 Related Documents............................................................................................ 15

2 Interfaces................................................................................................................ 17

2.1 System Memory Interface................................................................................... 17

2.1.1 System Memory Technology Support ........................................................ 17

2.1.2 System Memory Timing Support............................................................... 17

2.2 PCI Express* Interface....................................................................................... 17

2.2.1 PCI Express* Architecture ....................................................................... 17

2.2.1.1 Transaction Layer ..................................................................... 18

2.2.1.2 Data Link Layer ........................................................................ 18

2.2.1.3 Physical Layer .......................................................................... 19

2.2.2 PCI Express* Configuration Mechanism ..................................................... 19

2.3 Direct Media Interface 3 (DMI3) / PCI Express* Interface .......................................19

2.3.1 DMI3 Error Flow ..................................................................................... 19

2.3.2 Processor / PCH Compatibility Assumptions................................................ 20

2.3.3 DMI3 Link Down..................................................................................... 20

2.4 Platform Environment Control Interface (PECI) ...................................................... 20

3 Technologies ........................................................................................................... 21

3.1 Intel

Virtualization Technology (Intel

VT).......................................................... 21

3.1.1 Intel

VT-x Objectives ............................................................................ 21

3.1.2 Intel

VT-x Features............................................................................... 22

3.1.3 Intel

VT-d Objectives ............................................................................ 22

3.1.3.1 Intel

VT-d Features Supported.................................................. 23

3.1.4 Intel

Virtualization Technology Processor Extensions ................................. 23

3.2 Security Technologies ........................................................................................ 24

3.2.1 Intel

Advanced Encryption Standard New Instructions

(Intel

AES-NI) Instructions .................................................................... 24

3.2.2 Execute Disable Bit................................................................................. 24

3.3 Intel

Hyper-Threading Technology (Intel

HT Technology)....................................24

3.4 Intel

Turbo Boost Max Technology 3.0................................................................ 25

3.4.1 Intel

Turbo Boost Operating Frequency ................................................... 25

3.5 Enhanced Intel SpeedStep

Technology ............................................................... 25

3.6 Intel

Advanced Vector Extensions (Intel

AVX) ...................................................26

4 Signal Descriptions.................................................................................................. 28

4.1 System Memory Interface................................................................................... 28

4.2 PCI Express* Based Interface Signals...................................................................29