I did some further tweaking to see what kind of speed I could safely get out of a single r9 290. So far it isn't too bad. I had to run a bit slow for a couple hours, and thought I would just see about pushing it to make up for lost time.
taking my avg stats over the last 50 mins (since I started tweaking the settings for speed, I am turning up an avg rate of 111.8%. The actual interesting part is my temps. The gpu is staying at or below 70C, and the vrms are staying at 90C. The power usage is 209.7W. So, a 16% increase over stock settings with only 8 W more power usage.
It will be interesting to see what I get from the 290x when it arrives.
But to be honest, I don't understand how this is possible. Perhaps you can share more details? Brand of the card, operating system, driver...
Maybe it is already R9 290
X? :-)
I have Sapphire R9 290 TriX and that's a reference 100%. But somehow your R9 290 is 11.8% faster. ?!
This same card only does 7.68 MHS on Wolf0 miner. So your 9.6mhs is also quite an achievement!
It is an XFX R9 290A EDBD. I am running on Win 8.1. And I am using Catalyst 15.7. The system is based on an Intel Core i7-5820K Haswell-E, and has 32GB of DDR4 RAM. Honestly, I think I just found the sweet spot that my gpu prefers. I just checked it, and it has been cranking on these settings for 17 hours without any issues. Better yet, my displayed avg was slowly catching up with what xpool was reporting (> 10 Mh/s).