The GPU you see above is my recently purchased new GIGABYTE GeForce RTX 2080 TI. Making custom changes like water cooling, thermal paste and pad can be risky, because your warranty on the card becomes nullified.
So I ask, would you risk losing your GPU warranty to apply better thermal paste and pad on your GPU?
Aftermath, the readings on GPU temperature against the clock work improved.
I am thinking a thermal paste and pad can cost about $40 - $60 USD (depending on the brand and its quality)