Performance: 2 Teraflops
VRAM: 1 GB or 2 GB
Originally Posted by Nordic Hardware
The name of the Evergreen family remained a well kept secret as long as it stayed within AMD. When AMD decided to tell partners what the new name would be it didn't take long before the information leaked. VR-Zone was quick to snap up the information supplied to partners and it clearly states that Cypress will become Radeon HD 5800, where Cypress XT becomes HD 5870 and Cypress Pro becomes HD 5850. No performance specifications were mentioned in the first post.
However, in a related discussion it was revealed by CJ that the series will sport performance equal to 2FTLOPS. If the individual shader performance remains about the same we would expect the specifications to be around 1600 shaders and 80TMUs (speculation). The bus is back to 256-bit, and not the odd numbers we heard rumors of before, and the memory amount is 1GB, 2GB with pimped up versions coming later.
The new Eyefinity technology deserves to be mentioned too. It will enable users to use up to three displays with a single card.
Sources to Donanimhaber have informed them of the prices of the Radeon HD 5800 series. The faster Radeon HD 5870 is said to be priced at $299, while the slightly slower HD 5850 will be priced at $249. This is pretty much the same as the launch of the Radeon HD 4800 series. Once again AMD is aiming for the sweetspot in terms of Price/performance with a single GPU rather than raw performance.