That is an absolutely insane amount of power for 7nm. We all thought Navi 5700XT was insane with 200 Watts power (not TDP at that)
What I find really curious is, if it runs that hot, WHY USE A SINGLE FAN? Are we returning to leaf blower designs again? More fans = more airflow = better temps/less noise.
Fd = Cd * Area * (V1/V0)^2
(force of drag = Coefficient of Drag * Area * (velocity 1 / velocity 0)^2)
Basically stated if you have one fan and move the same amount of air by volume, you have to double the velocity. Thus the amount of force you have to put into a fan to pump that air to those speeds exponentially increases. (And why you hear nothing but noise on really small 40mm fans trying to be effective.) This is one of the rare strengths liquid cooling has. You can use multiple fans, and a larger surface area to spread out the load of heat and forces.
As a general rule: double the fans at 1/2 the speed is usually preferable because you get similar air flow with good pressure, and less noise overall. This however does have limits as bearing noise and static pressure losses may work against you.
What's also curious is the use of an axial fan as opposed to a centrifugal/squirrel cage fan typically found on blower designs. If you have to push air through a lot of fins, there's a high drag factor, and you need static pressure. This is an axial fan's weak point. Axials are more about velocity than pressure. (Not that you can't make them high pressure. It's just harder to do with multiple sweep blades and higher RPM.) Centrifugal fans are much more efficient in this regard.