Horsepower can make it go faster, but the major limitation is graphics memory. Graphics cards with under 12 GB of memory can’t handle the model (although I believe there are lower-memory optimizations out there), which means you need a pretty high-end dedicated graphics card on a PC. But because Apple Silicon chips have reasonably fast on-chip graphics with integrated memory, it can run pretty efficiently as long as your Mac has 16gb or more of RAM.