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So, my GTX470 blew up. Great. I ran out and bought a GTX760- and performance in MWO was identical. I assumed my CPU was bottlenecking me, but during the troubleshooting/overclocking process I removed my second cheap graphics card - and my FPS jumped from 60 to 130 in testing grounds.
Now, the reason I was running the second card was to run 3 monitors- not all for gaming, but to have two small secondary monitors (great for when I'm coding) running off the 9500GT, and the main monitor running off my GTX760. I've also heard this is a good way to make sure all your main GPU's power goes to gaming.
I'm not sure if it's simply limiting the FPS to 60, or if it's draining power. Either way, I have no clue why this is happening, and if it might be a setting somewhere? If anyone can offer some insight, I'd be most grateful!
Edit: I've isolated this to MWO. I tested Borderlands 2 and Furmark, and graphics performance is identical whether the 9500GT is in or not.
Edit2: The plot thickens! I now see that using multiple monitors with the 760 results in the same performance hit. Curiously, if I start the game with only one monitor, then plug another one in, it doesn't suffer from the same performance penalty!
Edit3: OK, so after a clean driver install, I can actually force vertical sync off, and the game runs even with multiple monitors. The bug still persists, but something was preventing me from forcing V-Sync off. It appears that MWO, when started with more than one monitor active, forces V-Sync, whether you like it or not. I've submitted a ticket to PGI.
Edited by Dr Killinger, 04 November 2013 - 02:20 PM.
