A:Answer OP, please ignore the Best Buy answer as it is inherently WRONG! This laptop comes with an i9 processor which has 6 cores and can run 12 threads, in layman's terms, it's gonna use some juice. Further, the 1080c GPU is overclocked, as well as the CPU, if you wish to do so and thus further decreases the battery life.
Not to mention, the laptop is extremely heavy. So I wouldn't worry about portability.
Also thank you "well informed best buy employee" for not mentioning the fact that the customer can purchase a external GPU, for less than $200 and THEN PLUG IT INTO ANOTHER SCREEN.
I short OP, this employee has no idea what they are talking about.
The real answer is it is a 1080p 60hz panel to reduce Best Buy's costs.