Mac users interested in Gputest snow leopard generally download:
Control the consumption of GPU output in your system when running demanding programs by viewing the status of your processing unit via the application. It features an option to identify and switch between multiple GPUs when performing multiple tasks.
GpuTest is a cross-platform (Windows, Linux and Max OS X) GPU stress test and OpenGL benchmark. GpuTest can also be launched from the command line under every operating systems. Scores are saved in a convenient CSV file. A sample file with all command line parameters is provided in the zip file.
NovaBench is a benchmarking utility to help you evaluate your Mac's capabilities by running various types of tests. The program might come handy if you purchase a new computer and want to see how well it performs under heavy processing demands. You can run all of the tests at the same time or execute the tasks individually.