GPU-Z will provide you with the most detailed report on the inner-workings of the graphic card. It supports NVIDIA, ATI, and Intel graphic cards, also integrating data on display underuse.
If overclocking capabilities are present, be sure to get detailed info on that too. The GPU load test will help users verify the lane configuration of the PCI Express.
And the best thing about it is that whereas it can create backup files of the GPU’s BIOS, it comes in a portable version, and thus no installation is required.
From technology and memory type to clock, driver version, and temperature, you are sure to get a complete report on the performance of the in-use graphic card.