Important: Please ensure that your X570, B550 or A520 motherboard has been updated to the latest BIOS, either by using a Ryzen™ 3000 series processor or the BIOS Flashback system (if applicable). The Ryzen™ 5000-series processors will not work on these motherboards without the most current BIOS. X470 and B450 motherboard support varies - please check with your motherboard manufacturer for compatibility. All other chipsets are incompatible.   AMD Ryzen™ 9 5900X Twelve Core CPU     THE FASTEST IN THE GAME Get a competitive edge. With 12 cores and 24 threads, the AMD Ryzen™ 9 5900X has a boost clock of up to 4.8GHz and a whopping 70MB of cache. Decimate multi-threaded tasks like rendering and compiling, whilst still being able to game with the best of 'em!   3.7 GHz 4.8 GHz 12 / 24 105W AM4 Base Clock Boost Clock Cores / Threads TDP Socket   Advanced Technology     7NM PROCESSOR CORE TECHNOLOGY The AMD Ryzen™ 9 5900X has been designed using an industry-leading 7nm process. Utilizing "Zen 3" technology results in faster and more efficient processing to get everything done faster than ever before.   The Latest Features     PRECISION BOOST & PCIe GEN4 The latest technologies are at the palm of your hand with the AMD Ryzen™ 9 5900X. Drop the processor in to a compatible A520, B550 or X570 motherboard and experience features such as Precision Boost 2 and PCI Express Gen4.   The Ryzen™ 5000 Series   Processor Ryzen™ 9 5950X Ryzen™ 9 5900X Ryzen™ 7 5800X Ryzen™ 5 5600X Cores / Threads 16 / 32 12 / 24 8 / 16 6 / 12 Base Clock (GHz) 3.4 3.7 3.8 3.7 Boost Clock (GHz) 4.9 4.8 4.7 4.6 Cache 72MB 70MB 36MB 35MB TDP 105W 105W 105W 65W Cooler Not included Not included Not included Wraith Stealth