I have a question regarding listed speeds of ddr4 memory. I have read that everything over 2400mhz is in fact OC memory. So if I am taking that right, if you buy a 3200 kit it's been tested by the man to run at that speed oc'd. My question is this, so is 3200mhz memory just overclocked 2400mhz or does it have better chips power phase etc???