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AMD Ryzen 9 3900XT

AMD Ryzen 9 3900XT

Ryzen 9 3900XT - desktop processor produced by AMD for socket AM4 that has 12 cores and 24 threads. The base clock frequency of the CPU is 3800 MHz, but due to Turbo Core technology, it can perform up to 4700 MHz. The size of the L3 cache is 64 MB. Please note that this chip doesn’t have integrated graphics.


Performance tests of AMD Ryzen 9 3900XT in benchmarks
Cinebench R20 (Single-Core)
Cinebench R20 (Multi-Core)


Ryzen 9 3900XT technical specifications


Vendor AMD
Released July 7, 2020
Launch price 499 USD
Type Desktop
Codename Zen 2
Socket AM4
Integrated GPU No


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


Transistors 19.2 billions
Fabrication Process 7 nm
TDP 105 W
Max. temperature 95°C

Memory support

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


Official site AMD Ryzen 9 3900XT official page
PCI Express Version 4.0
PCI Express Lanes 20


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