For 99% of you reading this, the answer is most likely no, however, if you wish plan to do either: - Upgrade to an overclocked CPU in the future or - Use DDR5 RAM Then feel free to buy a Z690 over a B660, however, if you don't plan to do either of the above options then there are no benefits in picking a Z690 over a B660, not only will the results be the same but you'll also save quite some money.