Fwiw, 8 Gen 3 is rumored to be 3.2GHz at the baseline. So Apple will have a 15% clock advantage. Adjusting them for 3.2GHz, the A17 is at about 2400-2500.That comparison is not fair.
Snapdragon 865 was released in 2019 (november 15) vs 2019 (september 10) for apple's A13.
Snapdragon 8 gen 2 was released 2022 (november 15) vs 2023 (september 26) for apple's A17.
For a more accurate comparison you need to wait until november for the Snapdragon 8 gen 3.
I'm estimating 2200-2300 score (IPC + high freq increase), that would means the A17 is 'just' 28-30% faster.
Apple does not retain its perf advantages, apple cores are stagnant.
8 Gen 2 phones can hit the 2000’s, even at 3.2GHz iirc, so with a 10-12% gain I think probably 2200-2300 is about right. That’s what rumors show too.
Gap between the X4 and A17 will be like 10%. More interesting to me is power performance curves.