In general, there are three types of service models of cloud computing namely IaaS (Infrastructure-as-a-Service), SaaS (Software-as-a-Service), and PaaS (Platform-as-a-Service). However, the cloud-based render farms often are delivered as SaaS vs IaaS models. This article details the difference between SaaS and IaaS as well as giving the list of which SaaS vs IaaS render farm is suitable for you.