Well APUs aren't just about gaming, a message that AMD has been trying to push out for a long time, even if HSA remains a sad and unfullfilled promise still.
And not even 3D is all about gaming, advanced visualization profits from it as well.
Personally I just love looking at Google Maps in the "earth mode" with Globe View enabled and satellite data being rendered into 3D by some nifty AIs.
Unfortunately my favorite browser, Firefox there does much worse than Chromium based ones like Brave but instant response to shifts, zooms and rotations on a 4K screen are possible with these beefier iGPUs. BTW it does much better then the orignal standalone Google Earth application, which evidently never got the really smart code. And it fully puts µsoft's FlightSimulator to shame, both in terms of map quality and 3D performance... but that's another story.
Intel has long suffered from the same attitude as you, thinking that iGPUs don't need or systematically can't really offer great 3D performance, because the required RAM bandwidth simply isn't there.
And AMD then has jumped the gun on Intel two times, a) by offering APUs that did offer much better iGPU performance at similr prices (e.g. Kaveri) and b) by allocating iGPU silicon real-estate to CPU cores instead, doubling core vs. Intel at the same process size and price point (Zen 1/2/3).
It was only on behest of Apple demanding better iGPU performance that Intel started their Iris Plus/Pro souped up 48/96 vs. the normal 24EU iGPUs which put 64/128MB of EDRAM on the die carrier to achieve the bandwidth required to make use of the extra GPU cores.
I have hardware from all these generations. E.g. a Kaveri A10-7850K with 512 SMs that required optimal DDR3-2400 DIMMs to benefit and did only marginally better than the 384 SM variant because it was starved for bandwidth.
It was pretty awsome to see how that at 90 Watts almost exactly matched the performance of my Iris Plus equipped Skylake i5-6267U dual-core with HT 48EUs, 64MB EDRAM and DDR3-1333 RAM at 28 Watts both in CPU and GPU workloads.
My Tiger Lake NUC with 96EUs and my Ryzen 5800U based notebook both manage to do without EDRAM and only get slightly better RAM bandwidth but evidently manage to get a lot more GPU power out of the extra SMs.
I don't know if its vastly bigger caches or software drivers that know how to use them in such a way that only the final render has to suffer from the relatively low bandwidth of their DDR4/5 frame buffers. Where 48EUs on a Gen8 NUC with the bigger Iris Plus only offered 50% uplift of performance vs. the 24EU NC Gen10 iGPU, the 96EU iGPU on the Gen11 NUC reached 4x the performance of the 24EU variant or linear uplift.
On GPU workloads or games Tiger Lake was around 20% faster than the 5800U, so the iGPU update on the 6800U should definitely help to bring overall leadership in the 15-28 Watt class of laptops without a dGPU.
And for the 7000 series APUs AMD is repeating the promise it used to make for Kaveri: a reasonable gaming experience, only this time at 1920x1080 when it was 1280x720 on Kaveri.
At 4k even my RTX 2080ti in combination with a Ryzen 9 5950x is hopelessly overtaxed most of the time, but it's really there only to run CUDA not games.
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