CPU Free BenchMark is a CPU benchmarking tool that tests CPUÂ´s registries, FPU, and ALU. Project has been abandoned.
Each test is built based on some equations & operations depending on the test.
Every major test contains three identical tests. For every identical test, the seconds and milliseconds are calculated. At the end of a major test, an arithmetic average is made from the seconds & milliseconds times saved from those three tests. So if u get a wrong time at a "mini"-test the other two can make the error be ignored.
The program was compiled with no optimization (speed, floating-point), so tests cannot be in favor of a particular processor type.