January 26, 20179 yr Not according to Phil Taylor, who helped write the FSX code. In one of his blog posts (https://blogs.msdn.microsoft.com/ptaylor/2007/10/03/acceleration-and-sp2/) he said: "I should note, for instance, that the DX10 code path performs better under load than the DX9 code path, and this means the DX10 features are more useable. And DX10 does look better, both in the cockpit and in the world." Later in the post, he gives an example of a 20% improvement with DX10 over DX9. I don't personally notice much difference between the two but would not go back to DX9 for two reasons - VC shadows and the new cloud shadows add-on. Both significantly add to the immersion for me. I think you missed part of my post. What I meant to say was that vanilla DX10 does indeed perform better than vanilla DX9. From my experience those 20% are kind of close. However, add "PoolSize=0" to your fsx.CFG, and you FPS in DX9 move will increase 25-50%. Run DX10 mode, and PoolSize=0 will not take any effect, so performance will stay the same. So all in all DX10 is faster by default, but DX9 is faster when optimally tweaked. This is what I mean (just using made-up FPS values here) No tweaks: DX9: 50 FPS DX10: 60 FPS PoolSize = 0 DX9: 70 FPS DX10: 60 FPS So it just depends on how you tweak both of them. Arjen Vandervelde
January 26, 20179 yr If you have a DX10 capable card (Quadro 2000 can use up to DX11 & OpenGL 4.4), which you do, mind as well make use of it. Jeff Thomson
January 26, 20179 yr Author If you have a DX10 capable card (Quadro 2000 can use up to DX11 & OpenGL 4.4), which you do, mind as well make use of it. I Thank you very much sir for your suggestion ! And i will for sure ! The cockpit shadows make the vc looks extremely interactive and realistic !
January 26, 20179 yr There is no way you can run those add-ons with that computer. Tweaking is a waste of time.......... With all due respect, I tend to agree...I had similar specs on my PC and it was impossible to run PMDG aircraft at acceptable FPS..that was my reason to upgrade.....your system is very outdated... Peter Webber MSFS 2020 & 2024 / Windows 11 / Intel Core Ultra 7 265KF / MSI Pro Z890-S WIFI / Samsung 970 EVO PLUS M.2 500GB / Corsair Vengeance DDR5 48GB 7000MHz / MSI Geforce RTX 4070Ti Super
January 26, 20179 yr Author With all due respect, I tend to agree...I had similar specs on my PC and it was impossible to run PMDG aircraft at acceptable FPS..that was my reason to upgrade.....your system is very outdated... Thank you sir ! it's all good ! I Really appreciate your consideration ! Happy landings
January 26, 20179 yr The cockpit shadows make the vc looks extremely interactive and realistic But again they will take your FPS down.
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