Review on Easycargo 10pcs Heatsink Kit with Thermal Conductive Adhesive Tape - Cooler Aluminum Heat Sink for Raspberry Pi 4, GPU, IC Chips, LED (25mmx25mmx10mm) by Lonnie Batch

I've added them to some key spots on the back of the RX 6900 XT to help dissipate heat without the fans constantly running like a jet engine. The adhesive seemed to hold well, but wasn't so strong that you couldn't peel it off if needed. But they didn't just fall or anything. I'm not sure how it will last long when placed vertically. Mine are in a horizontal position after installation, leaning against the top of the graphics card. This means that the adhesive is not stressed. During the stress test, the GPU's temperature was around 5-7°C lower than in the previous test.