The Low Cost Visualization (LCV) Project team at the Institute for Simulation has developed a prototype Modeling and Simulation (M&S) Benchmark Suite for testing 3D image rendering and realtime simulation capabilities of Low Cost Visualization Systems, i.e. PC-based computer systems capable of rendering 3D images and costing several thousand dollars. Previously reported research led to a focus on four OpenGL-based public domain benchmarks running under Windows NT. From these four, we selected scenario tests most resembling real-time simulation applications in scene complexity (terrain, culture, moving models and viewpoint, level of detail control, special effects, &c) and graphics rendering parameters (smooth shading, antialiasing, texture mapping, double buffering, transparency, hidden surface removal, &c). In addition, we included primitive tests designed to measure the maximum performance capabilities of an LCV system. Finally, we selected tests to evaluate the rendering quality of LCV systems, which turns out to be a matter of fundamental importance. We describe the M&S Benchmark Suite and analyze data produced by running it on nine different LCV systems. While the primary goal in testing was to verify the consistency and usefulness of the suite, our results reveal insights into performance capabilities of LCV Systems and software that runs on them. We also show how we revised the prototype M&S Benchmark Suite as a result of what we learned, and indicate future research directions in the LCV Project.