Originally Posted by Darkwizzie
I actually bought the largest tube of Conductonaut to delid myself in the future...
The downside for us is that the cost of delidding is factored into the purchase whether we like it or not. The difference between now and 2 years ago is that delidding kits are now the norm. In the days where most people had to use a razor blade things were riskier. On the other hand for the purposes of binning there is more than one reason why including delidding could make sense from the seller's perspective.
It's a little vague what stress test is actually being used now from reading the site on a page like this (https://siliconlottery.com/collections/frontpage/products/7700k52g
So compared to the past that 5.2ghz binned chip is like 5.15? 5.25? of the old times?
Even with the presence of delid tools during Kaby Lake, the vast majority of processors sold were delidded. Since delidding helps some chips a lot, and others not so much, it helps us nail down some more exact results by testing after delidding.
For another perspective from our side, I've had three customers return broken 7700Ks this year from failed delid attempts. One was a razor scratch, one was a complete demolish from a vice, and one person put the CPU in the wrong orientation in the rocket delid tool and tore off bottom components. I have to then fight disputes with customers wanting refunds when clearly they violated our warranty terms.
We are using a wide variety of stress tests (including P95, LinX, and the likes) along with leaving in some headroom. Processors should successfully run any software used. A 5.2GHz chip now is somewhat comparable to a 5.15-5.225GHz chip of the past. It's not exactly a 1:1 comparison scenario, since across many stress tests processors bin differently than just an hour of Realbench. (One processor might be really good at Realbench, but bad at P95 for example.)