ddurschlag

That's an interesting point. My assumption was that airflow was handled as part of temperature differential -- if you're talking about degrees different from ambient, good airflow keeps that ambient temperature down. Do you know of a good way to include fan information in the heat transfer calculation?

I'm trying to understand how a 2080 Ti with a 450+W draw can possible be cooled by its tiny little fin stack, when much (much!) larger sinks (e.g. two 12" chunks of https://www.heatsinkusa.com/12-000-wide-extruded-aluminum-heatsink/) would have an ambient differential of 50+ degrees to handle a similar load (according to the manufacturer's C/W). Am I misunderstanding the amount of heat these cards are putting out? Underestimating the surface area of their fin stacks? Missing some other detail? If it's relevant I'm considering a somewhat Stefan1024-style build (though I plan to have a single, large fan pouring air over all the sinks).