These are the speed variation 1150/1700 и i=22 msi 280x gaming for drivers.
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13.12 - 5,45 mhesh/s
14.4 - 5,72
14.6 beta - 5,76
14.6 rc2 - 5,76
14.7 rc1 - 5,76
14.7 rc3 - 5,76
14.9 - 5,40
14.9.1 beta - 5,40
14.9.2 beta - 5,40
14.11.1 beta - 5,40
14.11.2 beta - 5,40
14.41 rc1 OpenCL 2.0 - 6,12
14.12 Omega - 5,40

after the dissolution 1170/1750 - 6,23 mhesh/s