This isnt actually 100% true. If your a gamer and talking strictly gamer performance then maybe. But These cards arent built and used 100% for gamers. Ive owned a commercial IT company for 14 years now. I specialize in high performance builds for industry specific needs. Small part of my business but something a lot of companies in my region come to me for over the Dell's, HP's, etc. Engineering, CAD, 3D modeling, multi output video. None of that is gaming. The RTX 2080 Ti is the king of the roost by a long shot in a lot of these applications designed around the GeForce architecure. Now Solidworks, Surfcam, AutoCad, they prefer and run better on Quadro. No others come close, next best is the RTX 2080. Especially when Im building a custom video management server with video outputs to 14, 16, 18 4K (4096x2160) at 60 fps Ultra Short Throw projectors running different content on every projector utilizing DeckLink 4K Extreme distribution hardware.
When rendering video, which is what my daily office rig is built for, that rendering is offloaded to the GPU (RTX 2080 Ti) from the CPU and the rendering times are drastically shorter when this NVIDIA GPU hardware acceleration is utilized. Its not even close when rendering on the CPU vs high end GPU with 1080P and 4K rendering. Computer gaming is a small market these days when it comes to video card design. Some call dying due to consoles. Quardro designs and architecure trickle down to the GeForce lines and are utilized more for mining, cloud computing and rendering more than gaming these days.
Ive been watercooling high end workstations for 10+ years. Closed loop watercooling has come a long way and there is very little advantage temp wise these days running custom cooling loops vs high end closed loop systems unless your cooling SLI 2080's and a 8-14 core cpu and all have heavy overclocks.
I run a i9 9900KF @ 5Ghz 24/7 all cores with AVX, 32GB DDR4-4000Mhz memory, RTX2080 Ti, Asus ROG Maximus XI Code, Corsair 1200watt 80+ Platinum, Samsung nVME 970 Pro 1TB m.2 SSD and a Corsair H150i Pro and have no problems keeping load temps under TJ Max. Now Im also not gaming for hours a day, every day.
Here is a quick video I took of a job I flew out to MN and did back in February utilizing a custom video management server I designed and built for a chapel. 11 4K Ultra Short throw 4K projectors playing the same content or independent content on every screen. 2080 GTX TI /DeckLink gets it done. Anything else falls on its face. 1080 couldnt even get it done without stuttering.
Here's another client I did north of Denver in Greely, CO last December. 2 separate rooms, 2 independent systems.