iPhone 8 Subjected to Durability and Speed Tests

why would they mention strongest glass if its same as iphone 7?

As they say, there are lies, big lies and statistics. I would say that the test in geekbench responds well to A11 Bionic but anything else may not be as efficient. I would even go as far as to say that the CPU has been tailored for geekbench as you don't see that kind of difference in different tests.

You have to realize that Apple probably ensured that GeekBench would use all six cores at once but in reality only a couple of those cores will be used in actual real world usage. It will work like Big.Little. In android, usually four cores are always being used unlike iOS. The two high performance cores on the new iphones will do the grunt of the most stringent work while the low performance efficiency cores will be active for everything else. Think of the battery savings you need on your phones....you guys will never see all six cores running at once to get your so-called GeekBench scores (GeekBench app will be the only way you see it). Real World usage is the true defining factor.

Interestingly enough, there was a recent update to the GeekBench iOS app which could lend you to concluding that Apple and GeekBench may have worked hand in hand to ensure these results are taken at face value.