OCCT

OCCT is an all-in-one tool to test the stability, performance and reliability of a PC. It combines stress tests, benchmarks, system monitoring and tuning in one application.

Stability tests cover the CPU, CPU and RAM together, memory, the graphics card (3D adaptive and VRAM tests), storage and power supply, with a Linpack test and a combined test. While a test runs, temperatures, voltages and fan speeds are monitored in real time. Benchmarks measure CPU, memory latency and bandwidth, and storage performance.

OCCT runs on Windows and Linux. The free edition limits each test to one hour. Supporter editions remove this limit and add stability certificates and test reports, and Pro and Enterprise editions are aimed at system integrators, IT departments and manufacturers.