The Unreal Engine meme primarily revolves around the massive leap in graphical fidelity provided by Epic Games' proprietary engine, particularly with the release of Unreal Engine 5. It often contrasts 'potato' graphics with 'UE5' graphics or uses the iconic intro logo to signify that a real-life video looks suspiciously like a high-end render. The meme is a staple in the gaming and tech communities, used to poke fun at the intense hardware requirements of modern games, the 'uncanny valley' effect in character models, or the sheer awe of Nanite and Lumen technologies. It has evolved from simple comparison shots to a meta-commentary on the blurring lines between digital environments and physical reality.