9. Half Life 2
Half life 2 is without doubt the most anticipated PC game of all time.
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.
As we have seen time and time again, gaming is a field where there is no rival for the AMD processors. The 3000+ reported around 25fps higher framerates than the P4 530, and 40fps and more over the Celeron processors.