The video of Quake 3 is laughable. The game is zoomed in by at least 75%, so all you see is a closeup of the wall- that's nowhere near the number of polys in an actual scene of the game! Note how you cannot see the weapon the player is carrying, the HUD, or anything like that. Just a zoom-in of the scenery STRAIGHT ahead. Texture quality is horrifyingly low, approaching solid colors on some textures with no detail. Geometry quality is also astoundingly low. The image somehow seems blurry itself, too. The skybox and animated skies seem to be turned off. All shaders are turned off. Lighting is very low quality, looks like fullbright (no lighting). Framerate is acceptable, but any measurement is useless when you can only see <10% of the scene.