Editor's take: The new Radeon RX 6800M GPU in Asus's Strix G15 seems to suffer serious performance deficits with its stock RAM, as well as when outputting to its internal display. Both of these can be fixed relatively easily, but it's not a good start for the hardware-focused AMD Advantage initiative.
When is a GPU not that same GPU? When it's in a laptop!
Gaming laptop buyers are long-used to buying weaker versions of the graphics cards sold under the same name in the desktop space, with lower TDPs and fewer cores (even when not intended!)—but as well as those two factors, AMD's RX 6800M seems to be being tripped up by the rest of the laptop it comes in.
With the Asus ROG Strix G15 in review, YouTuber JarrodsTech found that the laptop had serious performance losses when using stock RAM and the laptop's own internal display in use. The ROG G15, like many other gaming laptops, incorporates hybrid graphics switching between the discrete GPU and the CPU's integrated graphics; this improves battery life but constrains bandwidth and eats into the CPU's power budget.
Nvidia's Advanced Optimus can force a discrete-graphics-only mode, but the G15 has no such option, meaning that it only reaches maximum performance when outputting to an external display. Furthermore, the loose timings of the manufacturer-provided memory also hurt performance further—previously also seen in the Ryzen-powered Lenovo Legion 5 Pro—and the effect of these two factors is rather shocking when put together.
Check out what the RX 6800M could have offered in the Strix G15 Advantage Edition if ASUS could get better RAM + allowed us to disable the iGPU
Buyer beware: Hardware configurations can eat up 25% of Radeon 6800M's performance