I know this is a really seless question because almost al hermal paste is th same, but I used the stock paste that came with my Gigbyte Cooler, whats the difference between that and the stock Intel and AMD paste, as well as the other"branded" paste.
Is it all the same or is the formulation different?
often its just a few degrees
i've used thermal paste from AMD, Rosewill, Coolermaster, among others. "brand" names like artic silver 5 and Antec Silver. Currently I have IC diamond in one PC, Antec Silver in another. Going from the stock paste to Antec Silver, my CPU temps dropped 2-3c. From Antec Silver to IC Diamond they dropped 1C.
If your temps are withing normal range, then stock thermal paste is fine.