Name
AMD Ryzen™ 9 9900X
Family
Ryzen
Series
Ryzen 9000 Series
Form Factor
Desktops , Boxed Processor
Market Segment
Enthusiast Desktop
AMD PRO Technologies
No
Consumer Use
Yes
Regional Availability
Global
Former Codename
Granite Ridge AM5
Architecture
Zen 5
# of CPU Cores
12
Multithreading (SMT)
Yes
# of Threads
24
Max. Boost Clock 
Up to 5.6 GHz
Base Clock 
4.4 GHz
L1 Cache
960 KB
L2 Cache
12 MB
L3 Cache
64 MB
Default TDP
120W
Processor Technology for CPU Cores
TSMC 4nm FinFET
Processor Technology for I/O Die
TSMC 6nm FinFET
Package Die Count
3
Unlocked for Overclocking 
Yes
AMD EXPO™ Memory Overclocking Technology
Yes
Precision Boost Overdrive
Yes
Curve Optimizer Voltage Offsets
Yes
AMD Ryzen™ Master Support
Yes
CPU Socket
AM5
Supporting Chipsets
A620 , X670E , X670 , B650E , B650 , X870E , X870 , B840 , B850
CPU Boost Technology
Precision Boost 2
Instruction Set
x86-64
Supported Extensions
AES , AMD-V , AVX , AVX2 , AVX512 , FMA3 , MMX-plus , SHA , SSE , SSE2 , SSE3 , SSE4.1 , SSE4.2 , SSE4A , SSSE3 , x86-64
Thermal Solution (PIB)
Not Included
Recommended Cooler
Liquid cooler recommended for optimal performance
Max. Operating Temperature (Tjmax)
95°C