doing a slight thread necro, sorry everyone... but I have a question.

what is the main difference between the UD3 and the UD5 model, besides about 60 bucks+? I think the UD3 doesnt have the clear cmos button...

gigabyte UD3 Version

Gigabyte UD5 version in this review

basically, is it worth spending the extra cash that I could spend on ram or a bluray drive on this Mobo?