I am looking at several CPUs, the i5-3470k, 3570k and 2500k. At this moment, the 2500k is about the same as a 3470k in pricing, so I don't think I'd get that. Is the 3570k just a 3470k but with a .2GHz higher clock speed? I put "and pricing" because I needed 3 words, and it had to be coherent and relevant.