OPAL-RT offers a wide range of simulator platforms to meet all current industry needs and forthcoming challenges. All simulators are based on a modular and flexible design and are fully customizable and expandable for specific I/O requirements. This document compares all OPAL-RT's simulator platforms: OP4605XG2, OP4610XG, OP5707XG2, OP5020XG2, OP5025XG2 and OP5033XG2.