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No announcement yet.
Using OpenCL with the radeon driver to print Bitcoins ? is this posible?
R6xx cards don't have the necessary hw to fully support the entire OpenCL API; it would be limited to a certain subset. R7xx can support OpenCL over the gfx pipeline. Evergreen is the first generation of hardware with a native compute pipeline.
The cheapest card to deliver good bitcoin performance (with the proprietary driver) is the 5830. The relative lack of ROPs doesn't affect mining. The most efficient dual-GPU card for mining is the 5970, and single-GPU card is the 7970, especially after undervolting the core and downclocking the memory.