Jag försökte leta upp svaret på denna fråga, och närmaste som jag kom var Igorslab som använde egna modifikationer som går lite utöver det vanliga (I guess, går att läsa om hela händelseförloppet i artikeln). Slutsatsen är exakt det som du letar efter:
"Everything that the manufacturers themselves can still modify in the BIOS to adapt the cards can also be done with the MorePowerTool. And this is exactly where the advantage is obvious, because on the one hand you don’t have to risk a BIOS to flash and on the other hand you can adapt the card to your individual needs. So a Radeon RX 5700 XT with only 160 watts limit and adjusted Ampere and fan values can still act faster than a RX 5700 at Stock, but can act much more efficient and quieter.
However, if you take a Radeon RX 5700 as your optimization target, you’ll end up in regions where a RX Vega 64 will sink into the ground with shame. Because there is still a lot of savings potential, even if the chips are clearly worse. Is it all worth it? Certainly, because you don’t risk the hardware just once, except for a lot of time invested in tinkering and trying it out. Unless you are too stupid. But that’s almost impossible."
