[mdasen]

The evidence is that Geekbench isn't biased towards Apple Silicon given that other benchmarks agree.

For example, AnandTech runs a bunch of SPEC CPU benchmarks and found that the Apple A15 was a lot faster than the Qualcomm Snapdragon 888 or Exynos 2100 (all 2021 processors): https://www.anandtech.com/show/16983/the-apple-a15-soc-perfo.... You can check the second page for graphics benchmarks.

Apple has been making their own CPU cores for a while while Qualcomm and Samsung are both using the ARM-designed cores. In the case of the above benchmarks, both the Snapdragon and Exynos are using the Cortex-X1 cores from ARM. Google's Tensor processor also uses ARM's X1 cores. Newer Snapdragon processors like the 8 Gen 1 and 8 Gen 2 have used X2 and X3 cores.

Apple's ability to produce their own CPU designs has been a big win for them, especially for single-core performance (really important for the majority of what people do with their phones including web/javascript) and for power efficiency (really important for the vast majority of time when users might be using their devices, but not in a taxing way).

Apple's custom CPU cores give them a real advantage.