Uh. Thermal paste doesn't go on your GPU there dude. While you may be too inexperienced to know, the GPU has a heatsink on top of it just like a CPU does. The higher performance the thermal compound between the two the cooler the card will run. And a word of advice more PC than my original response, don't knee-jerk respond to someone as if they're stupid to avoid shoving your foot in your mouth in the future.