From the original photos of the new heatsinks, which will complement the package of ~ 65W processors Alder Lake, seemed to use two different types of ribs. Thin, similar to Intel’s classic box coolers, which have been complemented by thick fins protruding to the level of the fan they line and whose radial flow they use. But that was a mistake. The strong fins on the lower model of the heatsink (RM1 designed for Core i7 / i5 / i3) are made of plastic, they do not dissipate heat, they only hold the LED ring.
However, in the case of the larger heatsink designed for 65W Core i9 processor models, the situation is different. In his case, the really strong / high ribs are made of metal and dissipate heat, but the passive part completely lacks the classic thin ribs. It consists purely of thick ribs, half of which end under the radiator and half rise higher, to the level of the fan.
However, no air flows from the fan to these upwardly projecting ribs, since the blade space is closed by a plastic ring from the rib space.
So it will certainly be interesting to see how these coolers work in practice.
So far, we have seen more detailed images of the RH1 (for Core i9), RM1 (for Core i7 / i5 / i3) heatsinks, but there are still no photos of the RS1 version that will be packaged for Penties and Celerons (right). According to the photo, it probably differs from RM1 by the absence of an LED ring.
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