The HPSC Risc-v CPU is described in the white paper pdf at https://www.nasa.gov/game-changing-development-projects/high-performance-spaceflight-computing-hpsc/

The HPSC Risc-v CPU is described in the white paper pdf at https://www.nasa.gov/game-changing-development-projects/high-performance-spaceflight-computing-hpsc/ https://www.nasa.gov/game-changing-development-projects/high... I don't get how they want to solve high performance with radiation hardening, which requires slow performance. They'll use 12nm Global Foundries CPU dies and DDR4 RAM, which is far from radiation hardened. So it looks like it's enjoying fault tolerance. Which started with the shuttle program, using many off the shelf fast CPU's and RAM, observing each other, instead of slow hardened CPU's and RAM.