Some marketing slides with the specifications of the ATI Radeon HD 5830 graphics card were leaked, you can check it out over here. These cards are expected to be launched on Thursday.
A set of company slides sourced by IT168.com shows the GPU's specifications are in tune with what we expected. The HD 5830 is based on AMD's Cypress 40 nm GPU. It has 1120 stream processors, a 256-bit wide GDDR5 memory interface, 16 ROPs, 56 TMUs, and clock speeds of 800 MHz (core) and 1000 MHz (memory). The memory bandwidth on the card is 128 GB/s, on par with that of the Radeon HD 5850. The core clock speed is slightly higher, too.
With a GPU of these specifications, AMD targets the market price-range of $200-$250, where there's room for a DirectX 11 generation graphics card to be positioned between the Radeon HD 5770 and Radeon HD 5850. The maximum board power of the card is slightly higher than that of the HD 5850, but we think that's because reference designs - if there are - might not use high-grade digital PWM circuitry. That typically shouldn't affect overclocking headroom a big deal.