Hello,
I just bought Sapphire HD7790 for bitcoin mining, but having problems to correctly setup it. Many users and overviews reported, that thic card has mining speed around 240 MHash/s using OpenCL Miner (poclbm Guiminer).
http://media.bestofmicro.com/C/7/377575/original/Bitmining.pngBut when I use Guiminer, CPU usage is going to 100% and mining speed is 300 KHash/s. (I have selected Bonaire HW and unticked CPU affinity). Using CGminer I am not able to get over 195 Mhash/s using flags.
This card is new on market and only drivers I can use is original 13.5 for 7790 and 13.4. I am running win 7 32bit.
Does anyone have any experiences with this card? Can anyone tell me, how to setup OpenCL miner correctly?
Thanks very much and sorry for my English