DDR4 Memory these day are rarely runs at their default frequency (2666,2333) unless you buy a really cheap one. Most 3200/3600 memory are in fact overclocked(Ju

DDR4 Memory these day are rarely runs at their default frequency (2666,2333) unless you buy a really cheap one. Most 3200/3600 memory are in fact overclocked(Just the factory pre-configure the overclock setting with xmp) except for a few ones that are natively 3200(some memory from micron are natively 3200 at 1.2v).