GraphicsGus writes "NVIDIA's GeForce 8800 line of graphics cards was already the fastest on the block and AMD (formerly ATI) has had no rebuttal since its launch in November. Apparently that still wasn't good enough for the NVIDIA as they announced the new GeForce 8800 Ultra today that tops their GTX part as the world's fastest GPU. PC Perspective has put the new card through a large battery of tests including Rainbow Six Vegas, Supreme Commander Oblivion and five other titles. And guess what? It wins them all. AMD better hope that R600 is the powerhouse we are all expecting, but at over $800 MSRP, the 8800 Ultra is still going to have a limited audience, to say the least."