The Asus ROG Ally has received a ton of software updates over the past few months. Among them was the ability to allocate more VRAM via the BIOS. This should help squeeze a bit more performance out of the handheld. However, a modder has taken it to an entirely new level and upgraded the physical memory modules.
SlickBuys Mods and Repairs swapped out the Samsung LPDDR5 6400 memory modules with similar LPDDR5X 7500 variants. The initial part of the process involved simply desoldering and replacing the memory modules. It should come easily to professionals, less so to newbies. The latter part involved desoldering, reprogramming, and resoldering the BIOS chips to recognize the new LPDDR5X memory.
Unfortunately, SlickBuys Mods and Repairs has not posted any benchmarks with the modded Asus ROG Ally (US$799 on Amazon). There should be a remarkable performance improvement solely due to the increased memory bandwidth. A BIOS mod should also allow gamers to allocate more VRAM, although the returns will be diminishing after a point.
Those willing to risk their warranty (and potentially the whole ROG Ally) for a performance boost can do so by visiting third-party repair outlets located in the US, Canada and China. A DIY kit is in the works and will be available for purchase soon.