ELI5- why can movies make CGI human faces and movements that look 100% real and normal but video games always look fake even with large budgets?

Question

ELI5- why can movies make CGI human faces and movements that look 100% real and normal but video games always look fake even with large budgets?

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Answer 1

Movies have teams of artists that stress over every single frame of a film, and can spend days or weeks working on a single shot using farms of high-end rendering equipment. It’s an intensive process that takes much longer to produce than it takes to play out on-screen. A video game’s footage is ultimately created by a single consumer-grade computer that only costs a few hundred bucks and has to render a human face in real time, at one second per second, with no direct artistic intervention.