Table schema:
CREATE TABLE table_name_5 (max_fps VARCHAR, mpix VARCHAR, frame_size VARCHAR)

Question: 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"