Looks a lot like a non-reference HD 4850
As all partners, Sapphire has also decided to announce its own HD 4830 today. The card uses Sapphire's blue PCB in combination with non-reference cooling which we had a chance to see previously on Sapphire HD 4850 cards.
The similarity isn't something new, as the RV770LE GPU that goes on the HD 4830 cards is pin compatible with the previous HD 4850 PCB, thus many partners decided to use their own PCBs. The Sapphire HD 4830 card features 640 stream processors and works at reference 575MHz for the core and 900MHz (1.8GHz effective) for 512MB of GDDR3 memory. Same as the previous HD 4850, this one also features a 256-bit memory interface.
Here is a picture of that new card.
