Features CPU Cores: 6 CPU Threads: 12 Base Clock: 3.6GHz Boost Clock: up to 4.1Ghz Windows 11 - 64-Bit Edition, Windows 10 - 64-Bit Edition, RHEL x86 64-Bit, Ubuntu x86 64-Bit *Operating System (OS) support will vary by manufacturer. The AMD Ryzen™ 4000 Series desktop processor contained in this package is compatible with AMD Socket AM4 motherboards when a compatible BIOS update has been installed. Please contact the manufacturer of your AMD Socket AM4 motherboard for guidance on how to update to the latest BIOS.