As the owner of a 3950X system, I have to say this statement in the article is complete BS and whoever wrote it never even sued a 3950X system.
"Comparable processors like the AMD Ryzen 9 3950X (which has 6 more physical cores and 12 more threads) don't break a sweat under similar cooling, delivering sub-80 degree temps, even when overclocked."
Even with one of the better 360mm AIO's on the market, the 3950X still hits 82C under load. For example, here are the temperatures when running the Firestrike Extreme benchmark several times in a row, which isn't particularly CPU intensive.
EDIT: I'm now getting a message about not allowing links to photos so I also attached the photos.
You can see the CPU hit 79C under load in FireStrike. That's with a 360mm AIO with push pull fans, and an additional four 140mm fans in the case to improve cooling.
Attached is a 3950X running AIDA64 FPU workload and Furmark.
EDIT: I'm now getting a message about not allowing links to photos so I also attached the photos.
What's the CPU cooling in that screenshot? A custom open loop with a 360mm radiator and push pull fans, 280mm radiator with push fans, D5 pump, and Corsair CPU block. Yet the 3950X still hits 81C.
The 3950X is difficult to cool because of the CPU die layout. The hottest part of the CPU heat spreader is not at the center. So you either need a $130 Optimus CPU block, a $210+ EK Magnitude CPU block, or one of Der8auer's kits that allows you to mount your cooling solution 11mm off center.
If anyone thinks a 240mm AIO will properly cool a 3950X under demanding workloads, they think that a 3950X thermally throttling at 85C is acceptable or have absolutely no experience with the CPU. Hardware Monitor has reported a power draw of 208 watts in my system from the 3950X when its overclocked. That's well beyond the cooling capabilities of a 240mm AIO. In addition to that, I previously tried a Noctua NH-D14 to cool the CPU and it his 85C under load then the CPU throttled due to temperature.