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Giving some feedback on the SLI status after the beta 14762:
SLI works fine for me, using STL's solution: Quote:
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Interestingly enough, the fps depend on the level of utilisation %percent of the GPUs. Over sea I get the GPU utilisation% on both cards at 99% percent. Over ground there are variances but usually something between 65% - 75% would be a good mark. On the REPKA Server #islands (lot's of water) I have constantly 90-110fps, GPU utilisation at 85%-95%, GPU temp is at 85°C On the REPKA Server #Channel (simple ground set) I have constantly 70-80fps, GPU utilisation at 80%-90%, GPU temp is at 85°C On the REPKA Server #Channel (heavy ground set) I have 30-50fps, GPU utilisation at 60%-65%, GPU temp is lower The Black Death track seems to be very heavy, GPU Utilisation varies as the pictures below will show you: The biggest challenge was the GPUs temperatures, the first SLI setup brought the GPU temp to 92°C so I had to add an additional 120mm fan to push fresh air into the case and do some additional air flow optimisations which brought the temp at constant 99% GPU utilisation from 92°C down to 85°C You need to keep an eye on your GPU temp, I used to think the NV6800Ultras were hot but, this 90°C is scarry... Flying a mission (above water, bombers intercept) gives me a clear SLI advantage (almost double fps) ![]() The shadows seem to be the fps killer, removing the tick from the shadows has a dramatic increase in CPU utilisation% and fps performance ![]() Sorry for the big screens, this is my desktop and I did not want to manipulate the original quality of the pictures by making them smaller... on the far right you can see the GPU performance window. 3840x1024 desktop, 3072x1024 window (beta 14762) move sliders to the right to see the game and GPU graphs With SLI ![]() Without SLI ![]() settings ![]() What is however very interesting is that I do not notice difference in fps performance on the Black Death between SLI and NO-SLI mode! I do not understand it and it makes me wonder. Anyhow, perfomance is good (SLI and no-SLI) and as long as shadows are off, I am very happy with it! ![]() 3840x1024 desktop, 3072x1024 window (beta 14762) move sliders to the right to see the game and GPU graphs With SLI ![]() Without SLI ![]() settings ![]() The shadows seem to be the fps killer, removing the tick from the shadows has a dramatic increase in CPU utilisation% and fps performance ![]() 3840x1024 desktop, 3072x1024 window (beta 14762) move sliders to the right to see the game and GPU graphs With SLI ![]() Without SLI ![]() settings ![]() The grass and roads do not seem to make a big difference after the Shadows are off 3840x1024 desktop, 3072x1024 window (beta 14762) move sliders to the right to see the game and GPU graphs With SLI ![]() Without SLI ![]() settings ![]() As a side comment, I never had the "sound bug", I posted my sound at conf.ini in a different thread in the hope that it may help others. I also use the RAMDRIVE solution (6Gb RAMDRIVE), I liked it and got used to it, apparently it does not have any impacton performance but I mention it, just in case. Many thanks to Jimbob for his nice explanations: http://forum.1cpublishing.eu/showthread.php?t=20228 For me it looks smooth and the only thing I am waiting for is the 3monitors implementation like in the old IL2FB... And for those who want to understand more about the headaches of SLI, Flyby posted an excellent link: Quote:
~S~ Last edited by 335th_GRAthos; 09-17-2011 at 07:53 AM. |
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