Today Bit-Tech got the first benchmarks on the web of Half Life 2: Lost Coast. They've tested on various high end pieces of kit, and they've also worked out the performance hit you take for enabling HDR. They have comparison screens between Nvidia and ATI cards, and they also have an awesome preview video of the level that they have cut together. Unmissable for any Half Life 2 fan!
"To our eyes, there is no discernable visual difference between ATI and NVIDIA cards. Although we understand that they are rendering differently internally, as far as we can see, there is absolutely no difference in the quality of the output. The image on the left is a scene rendered on a NVIDIA GeForce 7800 GTX on the left, and an ATI Radeon X850 XT on the right. Both are at 4x / 16x. If you can spot a difference in quality, let me know!" Read on over at Bit-Tech.