This GeForce RTX Copper Shim Mod Drastically Drops GDDR6X Temps By 46C
The GDDR6X memory used on high-end Ampere graphics cards runs at ludicrous clock rates, and as with any IC clocked to the ceiling, it gets super-hot. Well, DandyWorks was so concerned, in fact, that he decided to do something about it. Taking the card apart, he went through a painstaking process of modifying its cooling, first carefully applying insulating Kapton tape around the memory chips to protect them in the case that one of his extremely-conductive copper shims came loose.
After applying the tape, thermal paste, the shims, and then more thermal paste between the shims and the TUF GAMING card's special memory heatsink, he screwed it all back together and loaded up a stress test: Ethereum mining. Mining Ethereum is one of the most memory-specific workloads one can run on a GPU, so it makes a perfect stress test for his cooling mod.
As DandyWorks hopes, the results speak for themselves: while the card's memory hit 110°C almost immediately with the stock thermal pads, his modded card was still sitting pretty at 64°C even after nearly three hours of attempting to mint digital currency. That's an incredible drop in temperatures, so hats off to DandyWorks for a skillfully-executed GPU mod.
As for the practical benefits of the mod, well, they mostly have to do with extending the lifespan of the card. It's possible that DandyWorks could overclock the memory even further, but GDDR6X memory is not known to overclock particularly well—likely because NVIDIA has already pushed it to the ragged edge in the stock configuration.