5ghz is absolutely nothing in the benchmarking world. 980x cpus can generally reach 6ghz cooled by liquid nitrogen, some are close to 7ghz. Single Stage Phase Change cooling (what is pictured) is used by many to rough in an overclock and get familiar with a given chip, but few people use it for their final results as it doesn't get nearly cold enough. Dry ice gets closer, but nothing beats LN2 for 980x cpus.
This is really not very impressive.