14 hours compared to 13h for a similar intel based laptop. Not really that impressive. Correct me if I’m wrong, but most of the power consumption comes from the screen anyways.
It's impressive for AMD - they have had a not so stellar history with overheating, battery killing laptop CPUs. Also that's with 8C/16T as opposed to 4C/8T on Intel.
But... 20% cheaper. 50% faster in multi-threaded tests, 20% faster in single-threaded tests.