
Back when Nivida's RTX 4090 mobile GPU was the latest hotness for laptops, we took the view that it didn't actually make sense compared to the cheaper RTX 4080. That's because it was often constrained by the limited power budget of mobile form factors. Well, it turns out the laptop RTX 4090 is quite the beast when unshackled from such constraints courtesy of shunt modding, releasing up to 35% more performance and thereby beating typical examples of laptops powered by Nvidia's latest RTX-5090 mobile chip.
Our case study here is a Redditor who goes by the handle thatavidreadertrue and an Asus ROG Zephyrus M16 laptop. Apparently, thatavidreadertrue thought the Zephyrus's impressive three-fan setup could go beyond the laptop's official 150 W rating, perhaps with a dash of PTM, or a phase-change thermal pad to replace the factory thermal paste. Oh, and some shunt modding.