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Half Life 2:  Episode One

There's a wonderful new team dynamic at work in Episode One, thanks to the fact that Alyx battles alongside you throughout most of the episode. After playing on your own throughout Half-Life and Half-Life 2, it's refreshing to have a companion by your side, and Valve takes advantage of this by throwing you into situations where you must rely on teamwork to survive. Alyx is a capable assistant (perhaps almost too capable, since it's pretty tough to kill her off, and she seemingly has unlimited ammo), and she's often the difference between victory and defeat in many encounters, as she'll cover your back while you're busy trying to sort out the puzzle. Visually, Episode One introduces a lot of subtle improvements and enhancements in the Source engine, keeping it in line with video-card developments over the past couple of years. The new high-dynamic range lighting technology (seen only if your video card supports it) makes a big difference, as the outdoor scenes look a lot better, while indoor scenes feature impressive shadowing and atmosphere at times. Some of the textures in the game have been increased considerably, notably on Alyx and the other main characters, and the game looks incredibly sharp and with some pretty impressive HDR implementation.

Four AA samples and 16 levels of anisotropic filtering are enabled here with every possible IQ setting at high.

Crossfire yields very fine scores on both cards. The X1950 Pro at 2560x1600 however consistently crashed. No results in that mode.