The rumour comes by way of Yuri Bubliy, (@1usmus), the person behind the ClockTuner for Ryzen and DRAM Calculator for Ryzen utilities for – you guessed it – AMD’s Ryzen CPUs. According to Bubliy, he allegedly discovered the existence of a 10-core Ryzen CPU within the AGESA 1.0.8.1 firmware of the Ryzen 4000 series lineup.

10 core’s processors – it’s real 🙂@AMDRyzen @AMD #Ryzen — Yuri Bubliy (@1usmus) September 7, 2020 If the existence of a 10-core Ryzen CPU is true, the important question of why AMD is doing this would naturally arise. As it stands, there has been no 10-core variant the CPU line since its inception, and so far, even it’s top of the line variants from each generation has gone from 8-cores, to 12-cores, to 16-cores. One possible explanation behind the alleged 10-core’s existence is that AMD could be planning on making a cheaper competitor to Intel’s current 10-core Comet Lake-S powerhouse, the Core i9-10900K.

By the flow of that theory, this could very mean that the new 10-core Ryzen may officially be called the Ryzen 7 4800X, while the 8-core variant could take on the name Ryzen 7 4700X. Alternatively, there is the possibility that the next-generation 8-core CPU will become a permanent member of the Ryzen 5 lineup, with the 10-core formally becoming the new king-of-the-hill for the Ryzen 7 series. As always, this is all merely speculation, so take this news with a grain of salt until the official launch. (Source: Yuri Bubliy via Twitter, Techspot)

AMD Ryzen 4000 Series Lineup May Feature 10 Core Desktop CPU - 91