Bolt Graphics tapes out Zeus GPU test chip on TSMC 12nm FFC

Bolt Graphics has officially announced the successful tape-out of its Zeus GPU test chip based on TSMC's 12nm FFC process node. This architecture, which has undergone four years of FPGA testing and customer evaluation, is designed as a highly scalable compute platform targeting high-performance computing (HPC), AI, and professional rendering. 

The Zeus GPU(via Guru3D) is designed to scale across multiple configurations, including single-slot PCIe cards and massive 2U server systems. The entry-level “Bolt Zeus 1c26” single-chiplet model features 32GB of LPDDR5X memory and two DDR5 SO-DIMM slots, allowing for memory expansion up to 160GB within a modest 120W power envelope. For more intensive workloads, the dual-chiplet “2c26” variant offers up to 128GB of onboard LPDDR5X and four SO-DIMM slots for a total capacity of 384GB. This configuration is rated for 154 Gigarays of path tracing performance and 40 TFLOPs of FP16 compute at a 250W TBP.

Bolt Graphics' performance benchmarks place the Zeus GPU significantly ahead of Nvidia's RTX 5090. The company claims the 120W single-chiplet Zeus offers 2.5x the path tracing performance of a 575W RTX 5090, increasing to 5x with the 250W dual-chiplet GPU and 10x with the 4-chiplet GPU. In the HPC sector, Bolt reports up to a twelve-fold performance increase, while electromagnetic simulations reportedly see a 300x boost when comparing a quad-chiplet Zeus setup to a single RTX 5090.

While the hardware has reached tape-out, Bolt expects to begin mass production and achieve broad product availability only by Q4 2027. The company claims the Zeus platform can reduce total compute costs by up to 17 times compared to current market leaders, with a focus on performance-per-dollar efficiency.

KitGuru says: With Zeus promising to outperform an RTX 5090 in path tracing while using less than half the power in an older node, do you think we're seeing a shift toward “compute-first” GPU architectures that move away from traditional gaming-centric designs?

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