Also will be interested to see the benchmarks of the integrated GPU vs. discreet GPU performance.
If they're "only" claiming 2x over anyone else' integrated, then it's not going to be all that interesting to compare integrated vs. discreet. By comparison here the 2060 Max Q is around 4x faster than the Vega 8 in the 4800U.
Although that 2x faster than anyone else's integrated also has some really big question marks on the claim. The fine-print on that claim includes:
"Integrated GPU is defined as a GPU located on a monolithic silicon die along with a CPU and memory controller, behind a unified memory subsystem"
Which sounds a bit weasel-y like it's trying to specifically exclude what's commonly thought of as integrated graphics like the two-die approach in Tigerlake. Which how the product is packaged shouldn't really matter?
There's no claim of any 5-6x faster than previous there. It says "fastest integrated" (and in the fine print that integrated is specifically unified monolithic die, eliminating chiplet-style products), and then also "M1 delivers significantly higher graphics performance than the very latest PC laptop chip — for up to 2x the graphics speed."
So take the 4800U, which has among the fastest commercially available integrated graphics in a monolithic die, and double the GPU performance. If you needed a discreet GPU in your laptop previously this probably won't change that.