Hi all...
I've recently built a multi-purpose hash rig with a Asus Rampage V motherboard and four NVIDIA GTX 970 cards (https://www.asus.com/nz/Graphics-Cards/T...970OC4GD5/). I am running the card at stock speed, not overclocked.
The benchmarks I've seen for the GTX 970, including one from epixoip, indicated I should see around 20000MH/s per card for NTLM. I'm seeing nothing even close to that performance. On straight brute force, the best I'm seeing is around 8200MH/s per card....this is at 99-100% Util, so the cards have work to do. Dictionary and rules brings the performance down to between 1000 and 2000MH/s, again at 99-100% Util.
What are the most likely reasons I would see such a performance differential? What, if anything, can I do to improve the performance?
Thanks in advance for your advice!
Betawave
I've recently built a multi-purpose hash rig with a Asus Rampage V motherboard and four NVIDIA GTX 970 cards (https://www.asus.com/nz/Graphics-Cards/T...970OC4GD5/). I am running the card at stock speed, not overclocked.
The benchmarks I've seen for the GTX 970, including one from epixoip, indicated I should see around 20000MH/s per card for NTLM. I'm seeing nothing even close to that performance. On straight brute force, the best I'm seeing is around 8200MH/s per card....this is at 99-100% Util, so the cards have work to do. Dictionary and rules brings the performance down to between 1000 and 2000MH/s, again at 99-100% Util.
What are the most likely reasons I would see such a performance differential? What, if anything, can I do to improve the performance?
Thanks in advance for your advice!
Betawave