AMD Radeon HD 6870 and HD 6850 GPUs Hit Markets
AMD has launched the Radeon HD 6800 series with the HD 6870 and the HD 6850, which unlike what you'd expect, are the next-gen replacements for the HD 5770 and the HD 5750, or the performance-mainstream market. The upcoming HD 6900 series, which is now rumored to arrive sometime before the end of the year, will replace both the HD 5800 and 5900 series, or the high-end performance market.
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How NVIDIA's efforts will compare with AMD's remains a very pertinent question, and for now however, until the HD 6900 series rolls out (the dual-GPU [Antilles] HD 6990 is now rumored to release only in Q1 2011), the GTX 580 definitely holds the crown of the "fastest DXll GPU on the planet", with much more grace than the GTX 480.