Hello, I need help with one doubt i have My cpu is an Intel Core i5-3570K 3.4Ghz if i install a memory up to 1600 like a 2133 or 2400 frecuency, do i have to OC my cpu to avoid bottleneck or get better performance of my computer?
Doubtful, depends on what you intend to do. If you plan on gaming invest in a higher end vid card.
Ram speed and cpu speed are separate for you. But ram speed is next to no difference in performance. You will be much better off by putting that money into a better gpu.