I know they do exist … but never seen it in real-life nor have AMD officially acknowledged it, until now.
Taken from TPU … Back in May, pictures surfaced of a curious-looking Micro-ATX motherboard featuring a so-called “AMD 4700S” SoC. At the heart of these boards were an SoC not unlike the one that powers the Xbox Series X, except that the integrated GPU is completely disabled, with no onboard display outputs. The board is very likely a means for AMD to harvest Xbox Series X/S SoCs with broken iGPUs. It now turns out that the board is an official AMD product, named “AMD 4700S 8-core Processor Desktop Kit.”
The board provides an 8-core/8-thread CPU based on the “Zen 2” microarchitecture, no iGPU, but a PCI-Express x16 slot that’s electrically PCI-Express 2.0 x4, a handful USB 2.0 and USB 3.0 ports, two SATA 6 Gbps ports, onboard 1 GbE LAN and 6-channel HD audio. The SoC comes with its own unspecified amount of onboard memory in the form of hardwired DDR4 memory chips surrounding it; there are no additional memory slots. The Xbox Series X SoC features a 256-bit wide memory bus, so it will be interesting to see if AMD has maximized it. AMD didn’t reveal pricing or availability information, although they way this is marketed, the board will very likely be available in the retail channel.