[kaixi]

Safari is the best choice if you care about battery life. I literally get 2 extra hours of battery life when using Safari on macOS vs using Chrome.

What's incredible is that Chrome uses more CPU on Youtube than Safari. When playing the SAME video side by side.

[eppsilon]

Maybe something to do with hardware accelerated h.264 decoding? (Assuming YouTube serves VP8-encoded videos to Chrome users and h.264 ones to Safari users.)