Repasting your GPU might not fix overheating - Here's why
Reapplying thermal paste may not be the cure-all for heat issues.

Applying fresh thermal paste to an aging graphics card is a fantastic way to lower its operating temperature, but that might not necessarily fix overheating and thermal throttling issues. The thermal paste is responsible for transferring heat from the GPU die to the heatsink, but several other factors could also significantly impact your graphics card's temperature.