TL;DR
Bitluni's latest project involves assembling a staggering 8,192 CH570 microcontrollers (MCUs) into a functioning graphics processing unit (GPU) prototype. Each MCU houses a QingKe 32-bit RISC-V core, operating at a maximum clock speed of 100 MHz. The idea is to dedicate one MCU per pixel, but scaling this up leads to significant hardware costs and power requirements, reaching around $2,000 for the components and consuming approximately 2 kW of power for a resolution close to QVGA (320x200).