First-person shooters obsess over framerates. Thirty frames at 1080p. Sixty at 720p. Titanfall runs at 60 frames per second. Call of Duty: Ghosts also runs at 60fps. Battlefield 3 is practically playing with one arm tied behind its back at (gasp) 30 frames.
Never mind all that. Check this, shooter fans: the Slo Mo Guys fire a fully automatic assault rifle — an M4 — filmed by a camera that captures not 30, not 60, but 18,000 frames per freaking second. Obviously this is an apples to oranges comparison. Rendering video game graphics requires more processing power than a camera capturing framerates. I don't know, I'm not a scientist. But it's still entertaining to watch how many empty shell casings catapult out of the firing mechanism before the poor guy firing the gun even has time to blink.