5700xt base frequency is 1605Mhz. Game frequeency is 1755MHz. Boost is 1905 MHz under some contitions. Above that is very rare. In order to achive more than 1905 and I dont think is needed, you have to set the clocks higher and power limit at 50%. Also temp and gpu usage is a factor to achive 1905+. 5700xt is adjusting its frequency all the time. Dont expect contant frequency boost.