Monday, November 13th 2023
AMD Readies Even More Derivatives of the 4 nm "Phoenix" Processor Silicon
AMD's "Phoenix" monolithic processor silicon drives the company's Ryzen 7040 series mobile processor lineup, and possible some of its upcoming Ryzen 7000G desktop processor models. It is the first chip from the AMD camp to feature an AI accelerator, besides up to 8 "Zen 4" CPU cores, and a large iGPU based on the latest RDNA3 graphics architecture, with up to 12 compute units, the latest display I/O and media acceleration capabilities. Over the course of its lifecycle, AMD realized that it can't use the nearly 200 mm² silicon built on the expensive 4 nm node to power lower-end processor SKUs, and so developed the smaller 137 mm² "Phoenix 2" silicon that lacks the AI accelerator, has a smaller iGPU with just 4 compute units, and a unique hybrid CPU with 2 "Zen 4" and 4 "Zen 4c" cores. We're now hearing that the company is designing even more derivatives.
The PCI ID Repository discovered two new IDs believed to reference the iGPU models of "Phoenix 3" and "Phoenix 4" chips. At this point we have no clue what the two chips could be, and what the mixture of their CPU, iGPU, and AI accelerator components could be, especially given that AMD is able to carve out Ryzen 3 SKUs from "Phoenix 2." We speculate that "Phoenix 3" and "Phoenix 4" could reference rebranding such as "Escher," although it could even be entirely new chips with different combinations of "Zen 4" and "Zen 4c" cores.
The PCI ID Repository discovered two new IDs believed to reference the iGPU models of "Phoenix 3" and "Phoenix 4" chips. At this point we have no clue what the two chips could be, and what the mixture of their CPU, iGPU, and AI accelerator components could be, especially given that AMD is able to carve out Ryzen 3 SKUs from "Phoenix 2." We speculate that "Phoenix 3" and "Phoenix 4" could reference rebranding such as "Escher," although it could even be entirely new chips with different combinations of "Zen 4" and "Zen 4c" cores.