Nadav Ziv Profile picture
May 19, 2020 4 tweets 2 min read
How can PS5 clocks be both fixed and variable? Diff Jobs tax diff areas of the GPU, diff areas of the GPU generate diff levels of heat. On PS4 clocks are fixed, so job1 and job2 run always at the same clock, but while job1 generates little heat, job2 makes the PS4 run hot.
1/4 U4 uses job1 a lot so it runs quietly while GOW utilizes job2 a lot so it runs like a jet. On consoles, developers need fixed clocks because they want predictable behavior. On PC, when the GPU heats, its' clocks drop, but a console can't do that, it needs to be predictable.
2/4