While the 5 variant isn't yet available outside of the preview, you can of course spin a 4 up and run geekbench yourself. Plenty of people have and you can find them in the GB DB. And of course most people spin up their specific workload to see how it compares.

Core per core it pales compared to Apple's superlative processors, and falls behind AMD as well.

But...that doesn't matter. You buy cloud resources generally for $/perf, and the Graviton's are far and away ahead on that metric.