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Some good news for the AMD miners that want to mine SpreadCoin (SPR), there is a new fork of sgminer by girino (source) that increases significantly the performance for AMD OpenCL miners. We have compiled a windows binary from the source and on our test AMD Radeon R9 280X we’ve managed to get about 1.9 MHS with the new miner without overclocking the GPU. Increasing the intensity f the miner further than 20 could also help you get some more hashrate out of the GPU, do note however that this is a development version and it may not be very stable or problem free. While not quite as fast as Nvidia GPUs for mining SpreadCoin this is a good improvement over the previously available OpenCL miner. Have in mind that SpreadCoin (SPR) needs to be solo mined as it does not support pools, so you need to setup your wallet for solo mining and need to connect the miner to the wallet. This means no shares and you will know only when you find a block and that may take a while, depending on your luck, as the SPR difficulty is already quite high. Still, as we’ve got a request for a windows binary of the above OpenCL miner for AMD, you can download it from the link below and try what hashrate you will get with this performance improved miner.