[HELP] 2x16gb or 4x8gb RAM?

Hey guys, I just have found a nice sale for 32gb RAM for „only“ 109 bucks but it‘s 2x16gb. Is 2x16gb worse than 4x8gb or is there no difference? Even if 2x16gb is worse would you still buy that 2x16gb for that cheap price? (Corsair Vengeance)