Home/Processors/AMD Ryzen 9 3900XT
AMD Ryzen 9 3900XT
AMD Desktop CPU

AMD Ryzen 9 3900XT

48B
Cores12
Threads24
Boost Clock4.7 GHz
TDP105 W
SocketAM4
Process7 nm
⇄ Compare with…

Benchmarks

Cinebench 2024 Single-Core74
Cinebench 2024 Multi-Core1050
TDP105 W
Cache L364MB
Cinebench 2024 (Single)74
Cinebench 2024 (Multi)1050
Geekbench 6 (Single-Core)1680
Geekbench 6 (Multi-Core)10,907
Passmark CPU (Single-Core)2742
Passmark CPU (Multi-Core)32,469
Blender CPU276.02

Full specifications

GeekBench v6

File compression
1040 MB/sec
Clang compilation
111.3 Klines/sec
HTML 5 Browser
217.5 pages/sec
PDF Renderer
335.3 Mpixels/sec
Text processing
143.6 pages/sec
Background blur
32.4 images/sec
Photo processing
74.9 images/sec
Ray tracing
26.4 Mpixels/sec

PassMark

Integer math
99.5 GOps/sec
Floating point math
58.4 GOps/sec
Find prime numbers
212M Primes/sec
Random string sorting
48.1M Strings/sec
Data encryption
28.6 GBytes/sec
Data compression
451.3 MBytes/sec
Physics
1758 Frames/sec
Extended instructions
28.5B Matrices/sec

Performance Per Watt

Cinebench 2024 / Watt
10 PPW
Geekbench 6 Multi / Watt
103.9 PPW
Passmark CPU Mark / Watt
309.2 PPW
Blender / Watt
2.63 PPW

General

Vendor
Amd
Released
July 7, 2020
Type
Desktop
Instruction Set
x86-64
Codename
Zen 2 (Matisse)
Integrated GPU
No
Intel Equivalent
- Intel Core i9 9900K

CPU

P-Cores
12
P-Threads
24
Base Frequency (P)
3.8 GHz
Turbo Boost Frequency (P)
4.7 GHz
Total Cores
12
Total Threads
24
Bus Frequency
100 MHz
Multiplier
38x
L1 Cache
64K (per core)
L2 Cache
512K (per core)
L3 Cache
64MB (shared)
Unlocked Multiplier
Yes

Package

Transistors
3.8 billions
Fabrication Process
7 nm
TDP (PL1)
105 W
Socket
AM4
Peak Temperature
95°C

Memory Support

Memory Types
- DDR4-3200
Max. Memory Size
128 GB
Memory Channels
2
Max. Memory Bandwidth
47.68 GB/s
ECC Support
Yes

Misc

Official Site
AMD Ryzen 9 3900XT official page
PCI Express Version
4.0
PCI Express Lanes
24
Technologies
- Compute: BMI1, BMI2, F16C, SHA - Performance: Precision Boost 2, SMT, XFR 2 - Virtualization: AMD-V - Security: EVP, SMAP, SMEP

Specifications compiled from NanoReview. Last updated 2026-09-29.

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