Aqua computers offers their blocks with a 925 silver option at about $100 more than the copper version. 999 silver would add cost, but should yield a 7% improvement over copper at 20c. I think 925 silver is 5% better at conducting heat than copper, but I haven’t looked it up recently.Whoa, a pure silver cold plate? That would seem to be expensive. I am going to guess 400 plus given the going rate of new copper blocks. I can maybe see that if you delidded and had nothing between the block and the die, otherwise there are too many variables for there to be meaningful gains, no? That is one reason I am leaning towards using that old gold block with a new build. Will I see a noticable difference if I spend 200 bucks on an Optimus block? Am I going to see 7-14 degree difference on a 3700x with a factory heatspreader? If the answer is yes, i may shell out. Looks wise, I have to be honest, that non-rgb supremacy gold is very similar. Its a square, tasteful block.
Given the best to worst blocks in the tech power up optimus review was 4%, switching materials would have a bigger effect than anything the different blocks did performance wise.