Half life 2 is no doubt the most anticipated PC game of all times.

Characters - Advanced facial animation system delivers the most sophisticated in-game characters ever seen. With 40 distinct facial "muscles," human characters convey the full array of human emotion, and respond to the player with fluidity and intelligence.

Physics - From pebbles to water to 2-ton trucks respond as expected, as they obey the laws of mass, friction, gravity, and buoyancy.

Graphics - Source's shader-based renderer, like the one used at Pixar to create movies such as Toy Story® and Monster's, Inc.®, creates the most beautiful and realistic environments ever seen in a video game.

AI - Neither friends nor enemies charge blindly into the fray. They can assess threats, navigate tricky terrain, and fashion weapons from whatever is at hand.

To measure performance we used the Video Stress Test(VST) that is available in the CounterStrike:Source beta available through Steam. We set all the details to the highest level and each time changed the resolution from 800x600 up to 1600x1200.

As you already know, the resolutions at 800x600 and 1024x768 are CPU dependent so they don't give a true indication of a card's performance. The true value of a VGA card is best seen at higher resolutions. That is, at 1280x1024 and at 1600x1200 gaming resolutions. Nevertheless, similar fps were reported by the EAX1800 XT and N7800GTX, though the GTX TOP was the better of the two here...

With 4xAA and 8xAF, the scene clears up about who's the best. 136 fps at 1600X1200 is impressive from the 7800 GTX TOP, while 146fps at 1280x1024 is also good. The 7800 GTX TOP is the better card again.