Nordic Hardware heard rumors that AMD may introduce a Radeon HD 5950 graphics card in Q1 2010.
AMD is said to use the crippled Radeon HD 5850 Cypress GPU with 1440 stream processors operating somewhere around 650MHz to 675MHz. The memory clock frequency is said to be between 3600MHz and 4000MHz.
The card is more or less a dual version of Radeon HD 5850 and will ship as another weapon against NVIDIA's Fermi architecture, also launching in Q1. As with all rumors, consider it with a pinch of salt.