Air resistance through a radiator is dependant entirely on surface area. Essentially what this means for the Admirals is that the monsta (with the most surface area per fan) is going to be best suited for high speed fans and the other thinner ones for low speed. This is of course unless they are varying the density of 'fins' on the tubes, but I have yet to hear mention of that.
Also unless they have managed to break the laws of physics the rate of heat transfer from radiator to air for a given surface area isn't going to be any different to current rads, meaning it's going to perform pretty much the same as traditional style radiators. However due to the large gap between the fan mounts and the actual core of the radiator there may be a performance increase since the extra space will essentially act as a shroud.
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