Before you rush to judgement, remember that iPhone has much lower resolution. This helps "performance" a lot even in the tests like this. BTW, I believe Note 7 allows users to set resolution different from the display's native resolution (just like computers do). It would be interesting to set iPhone's resolution and re-run the test.
Yes, it helps performance in terms of frames per second. It does not help performance in this test though. CPU and access to storage and memory are the most important factors.
The only way resolution might have an impact here is if game developers tailor game assets to those screens. But I think that's not very plausible given the relatively low demand of such games on android flagships with 4k displays.