aorus 2070 super

hey guys , wondering if you could help me out. . . just got my new aorus 2070 super and the memory clock speed in game is actually lower then my old 1070. my factory oc 1070 would have an in game average of 2000.2 mhz and my 2070 super is getting 1750mhz. is this maybe becuse the new one is...