not at all, you have to spend money for faster hdd, ram, and bus. phoenix is not using the gpu not because we don’t know how to do this, but because the calculations are not the weak point, the data transfer is.
depending on the scene, you can hit the hdd bandwidth, the ram bandwidth/capacity or the bus bandwidth, the cpu is hit only in very small simulations (about 1M cells), that are practically not used for production.