Summary and conclusion
First, let’s look at how much you have to invest in a degree delta between the ominous 110°C upper limit for GDDR6X (before thermal throttling) and the temperature level reached in my test setup. Even if the differences are smaller without the chiller, this doesn’t really change anything in relation to each other. The pad with 7 W/(m*K) wins clearly ahead of the surprisingly good SARCON pad with 11 W/(m*K). The other two pads are really just extras that either perform too poorly or are completely overpriced.
In the end, the one with the 7 W/(m*K) wins among the four reference pads, because it also cuts the best figure in terms of price. On the other hand, if you’re on the hunt for that last bit of performance, you’ll be happy with the pad and its 11 W/(m*K). If you don’t want to invest anything else, leave the respective original pads in the cooler, because it certainly won’t break, and if you don’t know where to put your money, sink it into the high-end, even if you don’t get any more added value for yourself compared to the second-placed pad. The provider will be happy because the turnover is right and the tax office finally has a real added value.
And what do we take away from this as knowledge? The suppliers of heat conduction pads should really buy more thoughtfully and make sure that there are still good alternatives between cheap junk and pressed gold dust. Then everyone will benefit from it. Alphacool will be giving this exact pad to the whole waterblocks soon, along with a 1 gram tube of Sub Zero. It is also reassuring that even on the huge GA102 there are still five applications á 0.2 grams. i am now waiting for all my ordered pads and it goes quasi Alphacool-free in the next round. Well, not quite, because I will also test the ominous pad with the 17 W(m*K). Which I’m not sure is going to do any good at all. But as we all know, hope dies last.
If there is a supplier of thermal pads reading along: For a test I only need a 1 mm pad with at least 100 x 100 mm area for the three runs including some reserve and the data sheet including proof of availability (Geizhals, Amazon etc.). The postal address is in the imprint, the contact details too. Your advantage is that I test the pads for you for free, but the disadvantage is the publication that will follow in any case, regardless of the result.
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