While GPUs are not required to run OmniSci, we really recommend GPU infrastructure for OmniSci Free to get the most optimal and complete experience possible with OmniSci today. You can start small though, with single GPU instances in the cloud, using our AWS marketplace images. If you're okay living without some of the key GPU-enabled OmniSci features including our GPU-rendered geocharts, you can run OmniSci quite well on your Mac with our Mac Preview, or on any CPU server or workstation with at least 8GB RAM.