3 ms·
It's mostly the audio clock that is suspectible to drift. Everything except the audio subsystem is derived from a single master clock, so even if the master clo
by NobodyNada 1y ago
It's mostly the audio clock that is suspectible to drift. Everything except the audio subsystem is derived from a single master clock, so even if the master clock varies in frequency slightly, all the non-audio components will remain in sync with each other.
That means the 2 clock cycles could theoretically make an observable difference if they cause the CPU to miss a frame deadline and cause the game to take a lag frame. But this is rather unlikely.
- BearOso 1y agoThe CPU has shown some variation, but yes, it's the APU that has a ceramic clock source that isn't even close to the same among units. Apparently those ceramic resonators have a pretty high variation, even when new. When byuu/near tried to find a middle-ground for the APU clock, the average turned out to be about 1025296 (32040.5 * 32). Some people have tested units recently and gotten an even higher average. They speculate that aging is causing the frequency to increase, but I don't really know if this is the case or if there really was that much of a discrepancy originally. It does cause some significant compatibility issues, too, like with attraction mode desyncs and random freezes.