3DMark is a computer benchmarking tool created and developed to determine the performance of a computer's 3D graphic rendering and CPU workload processing capabilities.
Furmark is a small OpenGL benchmark and graphics card stability tester that is very popular with hardware enthusiasts, overclockers and gamers that has the capability to heat up the grahics card much more than many mordern stress testing utilities.
The ancient and famous pi calculating software made in 1995. This software is used for the benchmarking of the single-thread performance of x86 CPU even in nowadays.