Forget value. Which will perform better or will the be the same in a Maximus IX Formula and i7 7700K: Kingston Hyper X Predator 32gb (4x8gb) DDR4 C15 3000Mhz OR Corsair Vengeance 32gb (4x8gb) DDR4 C14 2400Mhz?
Get 3000mhz I watched a few benchmarks where the faster ram can net you an extra 8 fps given you have nice gear to handle it. I have the same cpu and mobo as you I got 32g of gskill 3000mhz and my pc is stupid fast.