Bolt Graphics Zeus a New GPU Architecture with Up to 2.25TB of Memory and 800GbE

Bolt Graphics Zeus Architecture We are not getting a full block diagram yet, but this is a RISC-V RVA23 out-of-order scalar core. There are then vector cores and accelerators. Something that is at least slightly reminiscent of some other startups we have seen is the use of RISC-V. Instead of building its own ground-up ISA, it can use RISC-V plus then add its own special sauce. It feels a bit like the Zeus 1c26-032 is a single chiplet part. We have DP 2.1a, HDMI 2.1b, and then some really neat features. Namely, there is a RJ45 BMC port as we have seen on DPUs, servers, and other components, but less commonly on GPUs. There is a QSFP-DD port for 400GbE, and two PCIe Gen5 x16 slots. Bolt Graphics can apparently do PCIe Gen5 / CXL 3.0 and Ethernet for a lot of flexibility. On the memory side, there is 32GB of LPDDR5X and up to 128GB of DDR5. The LPDDR5X here is being used because it is cheaper and higher capacity than either HBM3 or GDDR7. The Zeus 2c26-064/128 is the two chiplet module ... Read full article.