PCMark

PCMark is a computer benchmark tool developed by UL (formerly Futuremark) to test the performance of a PC at the system and component level. In most cases, the tests in PCMark are designed to represent typical home user workloads. Running PCMark produces a score with higher numbers indicating better performance. Several versions of PCMark have been released. Scores cannot be compared across versions since each includes different tests.
Controversy.
In a 2008 "Ars Technica" article, a VIA Nano gained significant performance after its CPUID changed to Intel. This was because Intel compilers create conditional code that uses more advanced instructions for CPUs that identify as Intel.