Explore a cutting-edge GPU-accelerated dynamical spacetime GRMHD code called GRaMX in this 39-minute talk presented by Phillip Moesta at the 2023 North American Einstein Toolkit School and Workshop. Delve into the innovative features and capabilities of this new computational tool designed for general relativistic magnetohydrodynamics simulations. Gain insights into how GRaMX leverages GPU acceleration to enhance performance and efficiency in modeling complex astrophysical phenomena. Learn about the code's potential applications in studying dynamical spacetimes and its integration within the Einstein Toolkit framework.