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Overview:
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Cyberpunk 2077 features an incredibly dense and action-packed world that places huge demands on CPU processingsomething that is pushed even further in the post-launch Episode Phantom Liberty. This talk dissects, in detail, a single CPU frame sampled from Phantom Liberty, in order to illustrate how the work for the various systems that drive the game are distributed across CPU cores in order to achieve 60 FPS gameplay in performance mode while updating one of the densest video game worlds to date. The process for how the team worked out their CPU budgets is described, as well as how they approached the challenge of balancing the desire to saturate CPU cores with useful work, and system update dependencies. Comparisons are made to CPU frames sampled in different gameplay situations to highlight the differences that can occur based on what is currently happening in the game.
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