3 ms·

Related: discussion[0] of the article[1] mentioned here comparing C64/6502 and IBM PC/8088 performance. [0] https://news.ycombinator.com/item?id=38345672 https

• flohofwoe 3y ago
  I think there's an error in [1] though. On the 6502 the minimal instruction cycle count is two clock cycles, not one. It's correct though that a 6502 can do (and indeed always does) a memory access in each clock cycle, most of those are redundant "junk reads" though.