![]() One of the keys to understanding what's required for tuning performance on the new Hawaii R9 290/290X cards is that AMD has built in safety protocols to keep the cards running "safely". I think if we could get voltage adjustments working, we might be able to improve on those results for a lot of cards, but we probably won't have that for a few more weeks if not months. R9 290 tends to be more like 750-800KHash on a lot of cards. ![]() There are a lot of 290X cards that seem to top out in the 800-850KHash range, and short of adding better cooling I'm not sure how much farther you can push them. In practice, the cards vary, sometimes wildly. Initial experience with the cards suggests that the Radeon R9 290 can hit up to 900KHash and the Radeon R9 290X can hit 1000KHash, but the key part of that is "up to". Over the past several weeks I've had a flood of comments and emails about R9 290/290X hashing performance when mining Litecoins (or any other scrypt-based cryptocurrency).
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