I am upgrading my PC with a i7-7700k, an ASUS ROG Maximus IX Hero, and Corsair Vengeance LPX, but I don't know if I should buy 32gb (4x8gb) or 16gb (2x8gb). Both are 3000Mhz. Is it worth the extra $150 for the 32gb? I will be playing high quality games, sometimes while streaming. I wanted to know if i even need 32 or if 16 is plenty.