Because some of them aren't. For example, result #4. Stock 4850 MHz for a 5800X and it scores over 1800: https://browser.geekbench.com/v5/cpu/4665766.gb5 https:

Because some of them aren't. For example, result #4. Stock 4850 MHz for a 5800X and it scores over 1800: https://browser.geekbench.com/v5/cpu/4665766.gb5 https://browser.geekbench.com/v5/cpu/4665766.gb5 Also notice this result is using clang9 while the MacBook results are using clang12. I assume clang12 has more and better optimizations.