Toppc achieved a frequency of 5500MHz with CL14-14-14 timings and LN2 cooling.
Just last year, one week before Computex 2016, the renowned Taiwanese overclocker, Toppc, broke the DDR4 5GHz barrier using G.SKILL memory and MSI Z170I GAMING PRO AC motherboard. A year after, he raise the bar once again and became the first ever to push DDR4 speed to 5.5GHz under liquid nitrogen cooling. This tenacity demonstrates his overclocker’s spirit of pursuing faster speed and greater performance of the latest computer hardware. This record has been validated by HWBOT. For more information, please refer to the following link and image: http://hwbot.org/submission/3569827_toppc_memory_frequency_ddr4_sdram_2750_mhz
“DDR4 5.5GHz has been our next target after we achieved DDR4 5GHz last year. We are extremely excited to finally make it happen together with Samsung components, MSI X299 motherboard, and Intel Core X-series processor,” says Tequila Huang, Corporate Vice President, G.SKILL International. “We are seeing amazing overclocking potential for these newly released hardware and we believe that more overclocking benchmark records will be achieved very soon by professional overclockers worldwide."