If you're wondering what a gaming handheld powered by an Nvidia GPU might look and play like, one modder has the answer. This enormous handheld has a 12.5-inch 4K display and RTX 4090 laptop GPU, and can even run on its built-in battery, just not while gaming.While this beast could easily claim a spot on our best handheld guide based on the in-game performance we've seen so far, it's not exactly suitable as a portable gaming device, at least in its current form. Cramming an Nvidia GPU, even a laptop one, into a handheld was always going to require some compromise, be it on power, cooling, or size, and it appears that all three have been accounted for in this design. Continue reading Forget the Steam Deck, this gaming handheld has an Nvidia GeForce RTX 4090 in itMORE FROM PCGAMESN: Nvidia GeForce RTX 5090 review, Nvidia GeForce RTX 5080 review, Best graphics cards