I get 28.2-28.3 with sgminer (kernel 4.10.5/AMDGPU-Pro 16.60). With Claymore ~28.9Mh. Sgminer should be just as fast once I finish tuning it (or worst case wait for Wolf's Polaris-tuned ethash kernel).
With the ref-style Sapphire should should be able to get over 2000, maybe even 2100 if you mod the 1500 strap.
Thanx again! It seems to work 2140/2025 (0.9v/0.95v), gives 29mhs on claymore and some mem errors in hwinfo64 ((
1500 strap modded with your online cgi tool ))
Wonder if someone tried Uber-mix extreme v2 timing from overclock.net ?
It is for samsung 8gb a guess
~236GB/s (~214GB/s Stock) +10% (OclMemBench)
1375 - 1500 - 1625 Mix
No EDC Errors Mem@2100Mhz (1000mv) / Core @1350Mhz
777000000000000022CC1C00AD615B41C0570E152DCB74090068C7000B031420FA8900A00300000
01E123A46DB354019