With every single day that passes, the war between AMD and Nvidia seems to be escalating to new heights as soon after Nvidia issued a press release claiming the GTX 590 is the world's fastest graphics card, AMD responded by disputing this allegation and challenged Nvidia to prove this is indeed the case. “The AMD Radeon HD 6990 achieved the highest default single graphics card score of X3303 using the industry standard 3DMark 11 benchmark. “And when we launched it, we issued a press release in which we proudly called it the 'World’s Fastest Graphics Card' and fully disclosed the basis upon which we made that claim,” said Dave Erskine, senior public relations manager for Graphics Desktop at AMD in a blog post. “Yesterday our competitor also issued a press release, announcing the launch of what they claim to be the 'World’s Fastest Graphics Card'– the Nvidia GTX 590. “So now I issue a challenge to our competitor: prove it, don’t just say it. Show us the substantiation,” concluded AMD's representative. Both the GTX 590 and the Radeon HD 6990 are dual-GPU graphics cards and were built in order to be used in high performance gaming systems as they easily support high-resolution and multi-monitor gaming. Although the GPU architectures that were used by the two companies in their flagship products are completely different, most reviewers tend to agree that the cards perform about the same and that choosing the right solution comes down only to the games that one is going to run, as each architecture has its strong and weak points. In addition, both the GTX 590 and the HD 6990 have an MSRP of $699 and the only real strong point that Nvidia's GPU has over its competition is its quieter cooling solution.