Im getting 280h/s extra moving from linux to windows miner.
4 x 1060 = 948h/s i5 2500s all on x1 risers windows
on linux was 680h/s
100% cou usage in windows same as linux
2018-06-03 19:17:29,105 INFO - : 251.29 H/s : 233.79 H/s : 229.60 H/s : 222.85 H/s
2018-06-03 19:17:39,110 INFO - : 253.78 H/s : 237.86 H/s : 229.34 H/s : 222.13 H/s
2018-06-03 19:17:49,114 INFO - ========== REPORT ==========
2018-06-03 19:17:49,119 INFO - Total Hashrate: 942.06 H/s | Accept shares: 2 | Reject shares: 0
2018-06-03 19:17:49,122 INFO - : 248.24 H/s : 241.22 H/s : 226.55 H/s : 226.05 H/s
2018-06-03 19:17:58,480 INFO - Found a target, submitted.
2018-06-03 19:17:58,734 INFO - Share accepted.
2018-06-03 19:17:59,311 INFO - : 256.00 H/s : 240.38 H/s : 222.85 H/s : 227.05 H/s
2018-06-03 19:18:09,112 INFO - : 255.36 H/s : 234.06 H/s : 228.83 H/s : 225.30 H/s

EDIT: After burner slide your RAM to -502 MHZ it makes no differnce to hash rate , and power target 65-75.