Please share your speeds of
R9 280X (R7970) 3GB 384 BIT GDDR5
AMD Sapphire R9 280X VaporX Edition
XFX Double Dissipation R9 290 4GB 512 Bits OC
Thanks
R9 290 4GB 230 H/s
All stock
Try 1100 Core and 1125 Mem.. My ref cards do 250-255
Have you raised the memory frequency to 1250? Does it make any difference? I heard the Equihash is memory sensitive.
I did, but it didn't make any difference for me.