May 13, 20251 yr I am considering an upgrade from Intel 13900K as it's already struggling with RTX 5090. I know AMD is now the king for flight simulation, but I can't find any direct comparison between 9800X3D and 9950X3D. If money is not a problem, and used simply for flight simulation, which of the two will give the highest framerate?
May 13, 20251 yr I literally googled 9800X3D vs 9950X3D and got this. It's a good thread on the subject. https://forums.flightsimulator.com/t/9800x3d-versus-9950x3d-for-msfs-2024/711781 Kael Oswald 9950X3D/ 64GB DDR5 6200 @ CL30 / Custom Water Loop / RTX 5090 / 3 x 48" LG C4 OLEDs
May 13, 20251 yr 9 minutes ago, KL Oo said: I literally googled 9800X3D vs 9950X3D and got this. It's a good thread on the subject. https://forums.flightsimulator.com/t/9800x3d-versus-9950x3d-for-msfs-2024/711781 indeed.. sounds like there is'nt a big step between the both... i9 14900KF 64 Gb DDR5 @ 6 Ghz CAS 32 Asus Apex Z790 W11 64 bits pro sur Kingston FURY Renegade 2 To, MSFS 2024 sur 2 ème Kingston FURY Renegade 2 To, RTX 5090 Alim Asus Thor 1600 W Gold Ecran Samsung G9 57 pouces 8K WC AIO ARTIC liquid freezer II 420 Boitier Gigabyte 3d mars https://www.youtube.com/channel/UCEFAk464aSg22aGFZ2LxeFg/videos
May 13, 20251 yr 29 minutes ago, supersym said: indeed.. sounds like there is'nt a big step between the both... Well, one poster indicated there was a more than insignificant improvement. https://forums.flightsimulator.com/t/9800x3d-versus-9950x3d-for-msfs-2024/711781/10?u=airbumps2502 I guess it probably depends on your use case and how many other addons/programs your running. Kael Oswald 9950X3D/ 64GB DDR5 6200 @ CL30 / Custom Water Loop / RTX 5090 / 3 x 48" LG C4 OLEDs
May 13, 20251 yr 3 hours ago, yanfeng12342000 said: If money is not a problem Well that makes it incredibly simple, the 9950X3D 🙂 FS2024 • PMDG 738, 77F • FSL A321 • A2A Comanche, Aerostar • BS Baron, Bonanza, Caravan Pro • JF Tomahawk • TAOG H500C BeyondATC • GSX Pro • ChasePlane & Flow Pro • TDS GTNXi • FSUIPC • AutoFPS • RealTurb 9800X3D B650E • ROG OC RTX 5090 • 64GB DDR5-6000 • VKB Gladiator, STECS, T-Rudder • Tobii 5 • ISP 1 Gbps
May 13, 20251 yr I was under the same dilemma back in december and upgraded from 13900kf to 9800X3d. But the main problem I had with 9800X3d is that it doesn't have extra core (non-cache) to run all the side apps I run along with MSFS (FShud, spad, google map, LNM, auto_fps, etc) and that for me was a no-no. I returned the 9800x3d and last month I ended up upgrading to the 99500x3d and that one had extra non-cache cores to run everything on the side and MSFS only in the cache cores and that did the trick. In terms of upgrade, well, I have extra fps (don't know how many) and more fluidity. But with my 13900KF I was also having amazing perfomance. If money is not a problem then go for it, but don't expect 50% more FPS and 200 AI aircraft landing in EGLL Inibuilds. Ramon De Valencia AMD 9950X3D / 64GB DDR5 6000MHz / RTX 5090 / 1200 watt PSU MSFS 2020 and 2024
May 13, 20251 yr 1 hour ago, ttbq1 said: I was under the same dilemma back in december and upgraded from 13900kf to 9800X3d. But the main problem I had with 9800X3d is that it doesn't have extra core (non-cache) to run all the side apps I run along with MSFS (FShud, spad, google map, LNM, auto_fps, etc) and that for me was a no-no. I returned the 9800x3d and last month I ended up upgrading to the 99500x3d and that one had extra non-cache cores to run everything on the side and MSFS only in the cache cores and that did the trick. In terms of upgrade, well, I have extra fps (don't know how many) and more fluidity. But with my 13900KF I was also having amazing perfomance. If money is not a problem then go for it, but don't expect 50% more FPS and 200 AI aircraft landing in EGLL Inibuilds. I tried the 9800X3d and I did'nt get any better performance vs my 13900k, curiously and at the opposite of many people... i9 14900KF 64 Gb DDR5 @ 6 Ghz CAS 32 Asus Apex Z790 W11 64 bits pro sur Kingston FURY Renegade 2 To, MSFS 2024 sur 2 ème Kingston FURY Renegade 2 To, RTX 5090 Alim Asus Thor 1600 W Gold Ecran Samsung G9 57 pouces 8K WC AIO ARTIC liquid freezer II 420 Boitier Gigabyte 3d mars https://www.youtube.com/channel/UCEFAk464aSg22aGFZ2LxeFg/videos
May 13, 20251 yr Author 8 hours ago, KL Oo said: I literally googled 9800X3D vs 9950X3D and got this. It's a good thread on the subject. https://forums.flightsimulator.com/t/9800x3d-versus-9950x3d-for-msfs-2024/711781 Thank you very much for the link. I have gone through it, and I am even more confused...😁
May 13, 20251 yr AMD 9950X3D on X870E chipset, make sure EFI/BIOS is updated and AMD chipset updated and Win11 OS updated (several key performance changes specific to 9950X3D and X870E)… that will provide better performance over the 9800X3D … if you want to further increase performance just for flight simulators, then disable SMT. If you want to overclock, then disable/park a CCD which will allow more OC headroom where frequency dominates game performance. 9950X3D gives you a lot more options for game specific optimizations and the price difference is negligible. Another to be noted performance specs for MSFS 2020 anyway, is RAM bandwidth … 8000+ Mts can bring about a significant FPS increase in MSFS 2020 (not so much in other games).
May 13, 20251 yr Buying a dual-CCD CPU just to then disable one of them strikes me as counterproductive. That would not make much sense to me in a dedicated MSFS box. A 9950X3D is $750 at Newegg, a 9800X3D is $490--I sure wouldn't call that $260 (53%) price difference "negligible". My experience with the 7800X3D suggests that RAM speed is not much of a factor with these CPUs as a result of their very large 3D L3 cache. The good news is that all of the 8-core per CCD AMD X3D chips do a fantastic job running MSFS--even the two-generation old 5800X3D is no slouch. 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
May 13, 20251 yr 5 hours ago, CO2Neutral said: .......9950X3D gives you a lot more options for game specific optimizations and the price difference is negligible. Well in Australia the price difference is $420 for the 9950X3d over the 9800X3D but all a bit moot as it is largely unavaiable here at present. Bruce Bruce Bartlett Frodo: "I wish none of this had happened." Gandalf: "So do all who live to see such times, but that is not for them to decide. All we have to decide is what to do with the time that is given to us."
May 13, 20251 yr Author 7 hours ago, CO2Neutral said: AMD 9950X3D on X870E chipset, make sure EFI/BIOS is updated and AMD chipset updated and Win11 OS updated (several key performance changes specific to 9950X3D and X870E)… that will provide better performance over the 9800X3D … if you want to further increase performance just for flight simulators, then disable SMT. If you want to overclock, then disable/park a CCD which will allow more OC headroom where frequency dominates game performance. 9950X3D gives you a lot more options for game specific optimizations and the price difference is negligible. Another to be noted performance specs for MSFS 2020 anyway, is RAM bandwidth … 8000+ Mts can bring about a significant FPS increase in MSFS 2020 (not so much in other games). Great tips, thanks!
May 14, 20251 yr 8 hours ago, Bob Scott said: Buying a dual-CCD CPU just to then disable one of them strikes me as counterproductive Not really, more cache hits over few cores. 9800X3D 104MB total cache, 9950X3D 144MB total cache. The 9800X3D is a Ryzen 7 part, the 9950X3D is a Ryzen 9 part … there are architectural differences. The 9950X3D has higher base and boost clock with better single core performance.
May 14, 20251 yr 8 hours ago, Bob Scott said: My experience with the 7800X3D suggests that RAM speed is not much of a factor with these CPUs as a result of their very large 3D L3 cache Skip to the 6:36 mark in this video: Oddly for MSFS the difference in RAM speed is has a significant impact on FPS.
May 14, 20251 yr 12 hours ago, CO2Neutral said: Skip to the 6:36 mark in this video: Oddly for MSFS the difference in RAM speed is has a significant impact on FPS. Note the fine print in the upper-left corner--those results are for a 9700X CPU--that chip does not have a massive L3 cache like the X3D chips, so RAM speed would be expected to make a more significant difference there. 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
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