July 10, 20187 yr hi I have read on previous posts that it is best if you can to set monitor refresh rate to 30 and fps set to 30 with vsync on which I have done but get some stutters now and again so I tried changing the frame rate to unlimited with monitor still at 30 and vsync on I get a much smoother flight but the frames still sit at 29/30 even with unlimited set there is no change in the fps whether I use locked or unlimited I don't understand. thanks,jim thank you,Jim MSI A520M-A PRO,AMD Ryzen 7 5700X3D 8 Core, 16 Threads 4.1Ghz,Arctic Freezer 36 ARGB Black Edition CPU Cooler,MSI VENTUS 2X Nvidia RTX 4070 12GB Graphics Card,Corsair 32GB Vengeance LPX (2x16GB) 3200Mhz DDR4 Memory,Gigabyte UD750GM 750W Gold Rated Modular PSU,Kingston NV3 2TB NVME M.2 GEN 4 SSD.
July 10, 20187 yr Commercial Member Jim, Would you kindly post your complete system specs and version of P3D you're running? Many thanks. Dave Hodges System Specs: I9-13900KF, NVIDIA 4070TI, Quest 3, Multiple Displays, Lots of TERRIFIC friends, 3 cats, and a wonderfully stubborn wife.
July 10, 20187 yr Hi Jim, There have been many discussions on this topic that you can find thru search. I've posted my findings here and in the P3D Guide. These might help especially on how Vsync works: and and Cheers, Rob.
July 10, 20187 yr The short version--with vsync on, you'll never see a frame rate higher than the hardware horizontal refresh rate, so the vsync caps your frame rate at 30 with a 30Hz monitor. On my system (also with a 30Hz monitor) I see the CPU core 0 (the one that runs the main thread) sitting typically at ~70-80% load, because the CPU isn't trying to produce frames as fast as it can, but rather only as fast as the vsync gate allows. This gives the core running the main thread some processor headroom to deal with minor workload spikes without interrupting the smooth 30 per second flow of frames, making the displayed video steady and smooth. Regards Bob Scott | President and CEO, AVSIM Inc ATP Gulfstream II-III-IV-V Sys1 (MSFS20+24/XPlane12+11): AMD 9800X3D, water 2x240mm, MSI MPG X670E Carbon, 64GB GSkill 6000/30, nVidia RTX4090FE Alienware AW3821DW 38" 21:9 GSync, 2x4TB Crucial T705 PCIe5 + 2x2TB Samsung 990 SSD, EVGA 1000P2 PSU, 12.9" iPad Pro Thrustmaster TCA Boeing Yoke, TCA Airbus Sidestick, Twin TCA Airbus Throttle quads, PFC Cirrus Pedals, Coolermaster HAF932 case Sys2 (P3Dv5/v4): i9-13900KS, water 2x360mm, ASUS Z790 Hero, 32GB GSkill 7800MHz CAS36, ASUS RTX4090 Samsung 55" JS8500 4K TV@60Hz, 3x 2TB WD SN850X 1x 4TB Crucial P3 M.2 NVME SSD, EVGA 1600T2 PSU Fiber link to Yamaha RX-V467 Home Theater Receiver, Polk/Klipsch 6" bookshelf speakers, Polk 12" subwoofer, 12.9" iPad Pro PFC yoke/throttle quad/pedals with custom Hall sensor retrofit, Thermaltake View 71 case, Stream Deck XL button box Sys3 (DCS/P3Dv4/ATS/ETS): AMD 7800X3D, MSI MPG X870E Carbon, Noctua NH-D15S, 64GB GSkill 6000/30, EVGA RTX3090 Alienware AW3420DW 34" 21:9 GSync, Corsair HX1000i PSU, 4TB Crucial T705 PCIe5 + 2TB Samsung 970Evo Plus, TM TCA Officer Pack, Saitek combat pedals, TM Warthog, TM RS300 FF wheel/pedals, Coolermaster HAF XB case
July 10, 20187 yr 11 minutes ago, newtie said: Hi Bob- Are you running unlimited in your description above? Mark Yes. Frames at unlimited in P3D, vsync and triple buffering on. Feeding a 55" Samsung 4K TV set to 30Hz refresh rate. Bob Scott | President and CEO, AVSIM Inc ATP Gulfstream II-III-IV-V Sys1 (MSFS20+24/XPlane12+11): AMD 9800X3D, water 2x240mm, MSI MPG X670E Carbon, 64GB GSkill 6000/30, nVidia RTX4090FE Alienware AW3821DW 38" 21:9 GSync, 2x4TB Crucial T705 PCIe5 + 2x2TB Samsung 990 SSD, EVGA 1000P2 PSU, 12.9" iPad Pro Thrustmaster TCA Boeing Yoke, TCA Airbus Sidestick, Twin TCA Airbus Throttle quads, PFC Cirrus Pedals, Coolermaster HAF932 case Sys2 (P3Dv5/v4): i9-13900KS, water 2x360mm, ASUS Z790 Hero, 32GB GSkill 7800MHz CAS36, ASUS RTX4090 Samsung 55" JS8500 4K TV@60Hz, 3x 2TB WD SN850X 1x 4TB Crucial P3 M.2 NVME SSD, EVGA 1600T2 PSU Fiber link to Yamaha RX-V467 Home Theater Receiver, Polk/Klipsch 6" bookshelf speakers, Polk 12" subwoofer, 12.9" iPad Pro PFC yoke/throttle quad/pedals with custom Hall sensor retrofit, Thermaltake View 71 case, Stream Deck XL button box Sys3 (DCS/P3Dv4/ATS/ETS): AMD 7800X3D, MSI MPG X870E Carbon, Noctua NH-D15S, 64GB GSkill 6000/30, EVGA RTX3090 Alienware AW3420DW 34" 21:9 GSync, Corsair HX1000i PSU, 4TB Crucial T705 PCIe5 + 2TB Samsung 970Evo Plus, TM TCA Officer Pack, Saitek combat pedals, TM Warthog, TM RS300 FF wheel/pedals, Coolermaster HAF XB case
July 10, 20187 yr Commercial Member 5 minutes ago, w6kd said: Yes. Frames at unlimited in P3D, vsync and triple buffering on. Feeding a 55" Samsung 4K TV set to 30Hz refresh rate. You know, of the 8 systems I help to setup/maintain, and my system, those setting has proved to work the best. So important to have some overhead remaining. Dave Hodges System Specs: I9-13900KF, NVIDIA 4070TI, Quest 3, Multiple Displays, Lots of TERRIFIC friends, 3 cats, and a wonderfully stubborn wife.
July 10, 20187 yr Author 15 minutes ago, w6kd said: Yes. Frames at unlimited in P3D, vsync and triple buffering on. Feeding a 55" Samsung 4K TV set to 30Hz refresh rate. Thanks for explaining vsync, I too run Samsung 55" set to 30hz but I don't have triple buffering on should I set to on what will the difference be. thanks,jim pc specs [email protected] 16g ram and gtx1080. thank you,Jim MSI A520M-A PRO,AMD Ryzen 7 5700X3D 8 Core, 16 Threads 4.1Ghz,Arctic Freezer 36 ARGB Black Edition CPU Cooler,MSI VENTUS 2X Nvidia RTX 4070 12GB Graphics Card,Corsair 32GB Vengeance LPX (2x16GB) 3200Mhz DDR4 Memory,Gigabyte UD750GM 750W Gold Rated Modular PSU,Kingston NV3 2TB NVME M.2 GEN 4 SSD.
July 14, 20187 yr I tried using a TV for a flight Sim monitor a couple of years ago, and the colors were really dull and washed out. I'm now using a Dell 42" 4K monitor and it looks really nice. How do the colors look on your 55" Samsung? Thanks. Pete Locascio Intel Core Ultra 9 285K, Nvidia RTX 5090, Samsung 9100 Pro 2&4 TB Drives, 64 GB RAM, Asus Z-890 motherboard.
July 14, 20187 yr 2 hours ago, tamba765 said: I tried using a TV for a flight Sim monitor a couple of years ago, and the colors were really dull and washed out. I'm now using a Dell 42" 4K monitor and it looks really nice. How do the colors look on your 55" Samsung? Thanks. Hi Pete: I have the 42-in Samsung 4K TV and there is nothing washed out about it. I am very happy with it. Rob did an excellent job in a thread last week explaining how to determine your average potential frame rate and how to use that information to decide on how to configure frame rate limit, vsync and triple buffering. I used the PMDG 77W departing KLAX and overflying the LA basin to get a potential frame rate of about 32 fps for my system flying that complex airplane over that scenery. Based on the fact that I was >30 he recommends unlimited frame rate, vsync on with display set to 30 Hz. He recommends triple buffering if your potential frame rate is >33. I was close and tried it with and without triple buffering and didn't see a difference. I used unlimited vsync display 30 Hz for awhile and I was having problems with long frames and blurry terrain textures after using x2 time simulation rate for a few minutes. This prompted my to go back to my tried and true settings that include a frame rate lock of 24 fps, no vsync and this for my prepar3d.cfg: [DISPLAY] TextureMaxLoad=18 TEXTURE_BANDWIDTH_MULT=120 UPPER_FRAMERATE_LIMIT=24 [SCENERY] MaxRegionsPurgePerFrame=1 [TERRAIN] TEXTURE_SIZE_EXP=10 The above of course is very dependent on your system. I have an 8700K CPU and dual 1080Ti in SLI configuration. I can use x16 rate now without any blurries and one of those display settings (no sure which) has reduced slow texture loading and long frames to a minimum. The 1080Ti's allow me to use the texture size exponent of 10 and the scenery can look stunning. The bottom line is that there is not a best setting for everyone, it depends on your system. Edited July 14, 20187 yr by downscc Dan Downs KCRP
July 14, 20187 yr Each setup is so different. I use a 120Hz monitor and Nvidia GSync and get the best results with the fps slider @ unlimited. Of course it requires P3D settings that allow >30 fps in the sim. As I also use TrackIR, the higher the fps the smoother the movements. Regards, Chris -- PC: Intel 13900K, Gigabyte Geforce RTX 4090, 64GB Fury Beast DDR5 RAM; Display: Varjo Aero VR
July 14, 20187 yr 2 hours ago, newtie said: What’s TextureMaxLoad default? Default is 6, values must be multiples of 3: https://www.prepar3d.com/SDKv2/LearningCenter/getting_started/performance/tuning_guide.html Dan Downs KCRP
July 16, 20187 yr On 7/14/2018 at 5:30 PM, Cargostorm said: Each setup is so different. I use a 120Hz monitor and Nvidia GSync and get the best results with the fps slider @ unlimited. Of course it requires P3D settings that allow >30 fps in the sim. As I also use TrackIR, the higher the fps the smoother the movements. Yeah setups are. I have a 144hz monitor and its hard to find answers on this topic since most users have a 60hz tuned down to 30hz. no external limiter and unlimited in sim with vsync and TB on i get smooth performance but get the occasional stuttering. external limiter at 30 fps and unlimited in sim with vsync and TB off, I get not as smooth performance but seems less stuttering. Hard to find the sweet spot but not sure its setup correctly. Jason Weaver - WestWind Airlines; FlyUK Airlines; VirtualUnited.org
July 16, 20187 yr So, let me see if I got it right: 1) Default settings In Nvidia Control Panel, although I set it for "Prefer Maximum Performance" and "Multiple display mode" ( now that I have a 2nd monitor... 2) In P3Dv4, FPS set to unlimited, Vsyn ticked and tripple buffering ticked ( or shoult this one also be ticked in Nvidia Control Panels ? ) 3) Should I then run P3Dv4 full screen or windowed ? Thx! Flying gliders since 1980 Flightsimming since 1992 AMD Ryzen 5600x, 32GB RAM, GPU Nvidia RTX 3060 Ti 8 GB, 1 TB and 500 GB nvme2 SSD drives, HP 27" 60Hz LED monitor @ 1920x1080, T16000, Hotas from old X52 Pro, Saitek Combat Rudder Pro (2010 model)
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