Mayor__Defacto t1_j6lr02x wrote
Reply to comment by WeirdGamerAidan in ELI5: Why do computers need GPUs (integrated or external)? What information is the CPU sending to the GPU that it can't just send to a display? by WeirdGamerAidan
To add to what FenderMoon said, think of being assigned to write out a sentence on a blackboard 50 times. A CPU, you, can only write one letter at a time, because you only have one writing hand. You can think of a GPU as having basically, 50 hands, so it’s able to write out all 50 lines at once, as long as they’re all doing simple tasks. So the CPU instead tells the GPU what letter to write next, rather than spending its time writing out letters.
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