Cinebench is a benchmarking tool developed by Maxon that evaluates the performance of computer hardware, particularly CPUs and GPUs. It uses real-world rendering tasks based on the Cinema 4D software to measure how well a system can handle complex graphics and processing tasks. The results from Cinebench provide users with a score that reflects the performance capabilities of their hardware. This score can be useful for comparing different systems or components, helping users make informed decisions when upgrading or building a computer.