Different generations of chips, or various cheap clone chips, sure. Within one generation, evidence of significant differences seems weaker. Sure, manufacturin

Different generations of chips, or various cheap clone chips, sure. Within one generation, evidence of significant differences seems weaker. Sure, manufacturing had loose tolerances, you could end up with a "faulty" chip, but most SIDs sounded the same. You could also end up with a 6510 that crashed after 30 minutes. https://www.youtube.com/watch?v=yadWu7hs4MU https://www.youtube.com/watch?v=yadWu7hs4MU https://www.youtube.com/watch?v=n73-ipWMCCY https://www.youtube.com/watch?v=n73-ipWMCCY