Photos of an oversized prototype graphics card from AMD have appeared online, showcasing an engineering board equipped with what appear to be four Polaris-generation Radeon RX 470 GPUs. Shared on X by user GOK@GOKForFree, the massive red PCIe expansion card pairs four bare GPU dies in a 2×2 layout with a combined total of 32 GB of GDDR5 memory and four 8-pin power connectors. [1][2]
The board features an official AMD logo near the PCIe connector and lacks conventional heat spreaders over the dies. Memory chips arranged around each GPU point to 8 GB of VRAM per chip, though that allocation remains unconfirmed. Extensive power delivery circuitry, including numerous inductors and power transistors, runs across the board to handle the heavy electrical load. The physical PCB is exceptionally large, visibly taking up more space than a standard PC motherboard shown alongside it. [1]
The prototype originates from AMD's Polaris era, though the company never publicly launched or announced such a product. Notebookcheck notes that the original purpose of the experimental hardware remains unclear, with possibilities ranging from a high-density cryptocurrency mining card to internal research into multi-GPU layouts, power delivery, and parallel computing. [1][2]