LittleTinyFrogs Forums" Your CPU communicates to the GPU 1 core to 1 core at a time." This is not true. Your CPU communicates with the command buffer (it fills it up), and then GPU cores (as many as it has) can access that command buffer and process commands. If your CPU can fill that buffer fast enough then you are good, if not then your application is CPU bound. There is no 1->1 communication as you say - there is 1->many communication. "None of this has to do with getting close to the hard
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