I want to build a new pc, but ram is really expensive, especially where I live, where a 16gb ram kit costs about 95€. However, I can save about 20€ by buying an 8gb ram stick and a 4gb ram stick (12gb total), both of which are kingston hyperx furry, clocked at 2666mhz. The only thing that's different, other than the capacity, is the Cas latency (16 for the 8gb stick and 15 for the 4gb stick). Is it worth it or is it gonna cause issues?