Bolt Graphics tests Zeus GPU design on a 6mm² chip ahead of 2028 production
Bolt Graphics has powered on its first Zeus project silicon, a small test chip that the California startup says ran without issues. The milestone suggests its design can run on custom hardware, but the planned Zeus GPU remains years from production, with volume manufacturing not expected until 2028.
Made by TSMC on a 12nm process, the 6mm² test chip draws 1.4 watts, down from 35 watts for the FPGA used to prototype the design. It is designed to accelerate electromagnetic simulations; Bolt has not released performance figures, though it says the chip exceeded internal estimates. The separate Zeus GPU is planned for TSMC’s N5P process, with RISC-V cores, path-tracing hardware and expandable memory up to 384GB. Bolt’s claims of up to ten times the rendering performance of Nvidia’s RTX 5090 have not been independently tested, and it has not named customers.
In short
- Bolt’s first Zeus test chip powered on successfully.
- The planned GPU is not expected in volume production until 2028.
- Performance claims remain unverified, with no named customers.
Explained simply
GPUs are chips that handle large numbers of calculations in parallel. They are best known for graphics, but can also speed up scientific work such as electromagnetic simulations, which model how electric and magnetic fields behave.
Bolt Graphics is a California startup developing a GPU called Zeus. Its small test chip is a way to check parts of the design in custom silicon; the planned Zeus GPU is a separate, larger product that Bolt aims to manufacture in volume from 2028.
The test chip’s lower power use than Bolt’s earlier FPGA prototype offers one early indication about efficiency, but Bolt has not published performance results for it. The company’s claims about the future GPU’s rendering speed have not been independently tested, so its eventual performance and commercial prospects remain uncertain.
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Originally published by Engadget as “Bolt Graphics powers on its first Zeus GPU”.