CREATE TABLE table_name_5 (max_fps VARCHAR(255), mpix VARCHAR(255), frame_size VARCHAR(255))
What is the max fps of a camera with mpix larger than 8.4 and frame size of 4k 16:9?
    
SQL: SELECT COUNT(max_fps) FROM table_name_5 WHERE mpix > 8.4 AND frame_size = "4k 16:9"