Claymore's CryptoNote GPU Miner v9.5
280x - ~64% load ,have a day works,win8.1x64 ,15.12
280x - ~64% load ,have a day works,win8.1x64 ,15.12
If you set power limit to like -50% gpu usage will go to 100%, but hashrate wont change. (I used MSI afterburn)