It would be interesting to know what the performance is like in Windows 10 with the latest leaked driver. Ultimately of course, come 29 July, what it will be like then. AMD have done a lot of optimising with DirectX 11 lately on the Windows 10 driver. I suspect the Windows 8.1 Fury driver didn't receive that same love. Tough time to release a driver with this in mind, when Windows 7 and 8.1 is being replaced by Windows 10 a month after its release. No discussion or argument regarding people sticking with Windows 7 and 8.1 after Windows 10 release. AMD and Nvidia are not in the business to encourage people to stick with deprecated OS's against Microsoft's wishes, especially since the upgrade is free. If you're using the latest hardware like Fury, and wanting to stick with Windows 7 or 8.1 after 29 July, quite frankly, you're an idiot! I'm not going to apologise for that statement . So basically, in short, come 29 July and Windows 10, with the release Windows 10 AMD driver, the gap between the Fury and the 980 Ti will likely close. The Nvidia driver already received the DirectX 11 love, so their gains will likely be less. I'm referring to the actual DirectX 11 overhead optimisations part of the driver here, which happens to be in the very latest leaked Windows 10 drivers, not for it being Windows 10 specifically.