CREATE TABLE table_name_47 (maximum_fps VARCHAR(255), least_compression_at_maximum_fps VARCHAR(255), height VARCHAR(255), least_compression_at_24_fps VARCHAR(255))
What is the maximum fps HDRx with a height larger than 1080 with a compression at 24 fps of 6:1 with a compression at maximum fps of at least 7:1?
    
SQL: SELECT maximum_fps AS HDRx FROM table_name_47 WHERE height > 1080 AND least_compression_at_24_fps = "6:1" AND least_compression_at_maximum_fps = "7:1"