While both AMRAP (As Many Rounds As Possible) and HIIT (High Intensity Interval Training) are high-intensity workouts, they differ in structure. An AMRAP involves performing a specific set of exercises as many times as possible within a given time frame. On the other hand, HIIT involves short, intense bursts of exercise followed by brief recovery periods. Both methods can effectively improve cardiovascular health, increase strength, and promote fat loss. The choice between the two often comes down to personal preference and fitness goals.