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Homebrew GPU Cluster Built with 8,192 RISC-V Chips

WireByte Staff · July 7, 2026

Electrical engineer bitluni has built a homebrew GPU cluster using 8,192 RISC-V chips, connected to custom-designed PCBs and controlled by 256 larger cores with FPUs. The project took six months to complete and can display a 320x200 QVGA resolution. The cluster was not intended to be built, but was made possible by a partnership with PCB design software firm Altium.

Key points

  • bitluni, an electrical engineer and YouTuber, built a homebrew GPU cluster using 8,192 $0.13 CH570 RISC-V MCUs and custom-designed PCBs.
  • The cluster is controlled by 256 larger cores with FPUs and can display a 320x200 QVGA resolution.
  • The project took six months to complete and was made possible by a partnership with PCB design software firm Altium.
  • bitluni described the cluster as his "nemesis" due to the significant challenges and setbacks he faced during the project.
  • The cluster's six-layer PCB design incorporates 32 rows of 32 chips and each CH570 chip runs at 100 MHz with 12 KB of SRAM.

Homebrew GPU Cluster Built with 8,192 RISC-V Chips

Electrical engineer bitluni has built a homebrew GPU cluster using 8,192 RISC-V chips, connected to custom-designed PCBs and controlled by 256 larger cores with FPUs. The project took six months to complete and can display a 320x200 QVGA resolution.

The cluster was not intended to be built, but was made possible by a partnership with PCB design software firm Altium. bitluni described the cluster as his "nemesis" due to the significant challenges and setbacks he faced during the project.

The six-layer PCB design incorporates 32 rows of 32 chips and each CH570 chip runs at 100 MHz with 12 KB of SRAM. The cluster's capabilities and performance are impressive, considering the DIY nature of the project.

This project highlights the capabilities of RISC-V chips and the potential for DIY computing projects. It also showcases the dedication and expertise of electrical engineers like bitluni who are pushing the boundaries of what is possible with custom-built hardware.

Sources

WireByte Staff — Editorial Team

The WireByte editorial team synthesises technology news from multiple primary sources, verifies the facts, and links every source. Articles are produced with AI assistance and reviewed under our editorial policy.