16 gb 3333mhz

Atm I'm going to buy a r7 2700, but I am wandering if I should wait and buy a r7 3700 because the 3700x is supposed (don't know for sure) to hit th 5ghz mark with 12 cores, since the 2700 is £200 rn witch is a pretty good deal, I'm gonna be doing alot of gaming and video editing and...