The first 3080 performance leak, it may be taken down anytime so watch it while still available.
The tester speaks in Mandarin and the subtitle is also in Chinese but I guess it's not hard to figure what he is saying by looking at the numbers and the key words. Overall it has about 30% performance increase from 2080TI and 50% increase from 2080S.
The actual test starts at about 07:00, enjoy.