PSA: check your thermal paste. I've had my Windforce OC 2080ti since launch.
I noticed that it's thermal performance degraded heavily over time. I took apart the gpu and noticed that the thermal paste has completely dried up and crusted over. Like old toothpaste. I had to use my nail to chisel it off the die and heatsink. I'm disappointed at the level of quality for a 1000+ card.
I replaced it with some cheap paste and it's about 5c cooler now. I'll take it apart again and put Kyro on it and see how that goes.
Even then the heat dissipation of the stock fans is quite poor and the heatsink is just not good enough. This heatsink, like any heatsink, has a thermal limit that after while it's efficiency falls off a cliff and the fans start doing a scream of death trying to keep it all together. It's useless though because once a certain amount of heat is built up the heatpipes more or less fail and the card will thermal throttle routinely in extended sessions.
Along with the paste swap, I would set a custom voltage frequency curve that keeps your temps down below 80c and under a peak of 300w for extended sessions. The stock heatsink and fans can't dissipate more than 260/270w of sustained running. You'll need MSI afterburner for that.
A custom curve is not different than overclocking your cpu with a fixed vcore and frequency. The only difference is here as the card will still throttle down in steps as temps rise. There's no way to disable that part outside of keeping the core cool.
There Is *NO* fix for the heatsink/fan issue so if you really want low temps, get a AIO on it with a G12 or a custom loop. Thankfully with GPU dies being massive and thus greater surface area, keeping it cool even with a cheap AIO is more than enough and you don't need a high end water cooling setup at all.
In short, replace the stock thermal paste and set a custom frequency/voltage curve. You'll be happier for it for sustained gaming sessions for GPU intensive games.
@GIGA-Man I can't say that I'm a happy customer when such penny pinching happens on the paste for such an expensive card. In contrast, when I removed the cooler of my 2600k after many years of continuous use, the paste was still soft on both ends.