Ryzen 9 3900x vs. i9 9900k for RaceRoom

Discussion in 'General Discussion' started by Yornovich, Jul 19, 2019.

  1. Yornovich

    Yornovich New Member

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    Hi all,

    I'm building my new desktop at the end of this month. I'm planning to go for the Ryzen as it's clearly the best option at the moment. However RaceRoom is my favorite sim and I would like to know how well it runs on AMD vs. Intel CPU's. I'm planning to do all my racing in VR.

    Here's the other specs so far:
    - MSI RTX 2080 Ventus (not really interested in raytracing but got a good deal from a friend who's going 2080ti)
    - Corsair Vengeance LPX RAM 16gb @3600Mhz
    - Corsair Force MP300 SSD 120gb for the OS
    - Intel 660p SSD 2tb for main storage
    - Corsair RM850x modular powersupply
    - Acer Nitro VG240Y IPS monitor 2560 x 1440 @ 75hz
     
  2. spyshagg

    spyshagg Active Member

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    If you race on your 75hz monitor, it doesn't really matter.

    In VR I would chose the highest performing single-threaded CPU. That would be the 9700K/9900K and push it to 5.1ghz if possible. But its hopeless, because your framerate wont hold 90 in this game. Expect severe drops all the time.

    Three reasons for the 9900K. 1) you have a Nvidia card whose driver really dislikes ryzen on CPU bound games. 2) most games really like Intel, for whom most games were "optimized" in the last 10 years, which is the age of the game engines of you favorite sims. 3) 9900K overclocks much better.

    The 3900X though, is freaking amazing price/performance but it doesn't translate to the majority of today's games specially Sim racing. It also needs a lot of tweaking to make it match the stock 9900K, but again, not in all games.
     
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  3. FormelLMS

    FormelLMS Well-Known Member

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    I have a 9700K on 5 Ghz with an 2080 no drops under 90 Hz in my Oculus Rift. Even with 40 KI GT3 Cars at the start on Nordschleife VLN Variant.

    Settings as in the VR Tweaks Thread.
     
  4. spyshagg

    spyshagg Active Member

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    I'll have to see it to believe it mate. Its simply impossible on my Odyssey+ (openVR). Sure its not AWS?
     
  5. FormelLMS

    FormelLMS Well-Known Member

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    Yes, 100 % sure.
    Could be, that Rift doesn't need that much power than a O+

    Try it first with disabled Shadows and reflections on lowest. Other settings to medium.
    You can't see the differences in VR, but it helps well.

    At least I could enable shadows on low with the help of the mentioned thread.

    But try first without. The impact of those two settings is horrible.
     
  6. Case

    Case Well-Known Member

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    They are both pretty close, but Intel is likely to give you slightly better performance due to its somewhat better single core performance, which is all that really matters in current sims, and you will likely be able to get even more from it with overclocking.

    Speaking of which, you could certainly save a noticeable amount of money by getting something like the 3700x instead of 3900x as far as simracing is concerned, because the performance should be pretty much identical. But since you're considering 3900x/9900k, I'm guessing price is not a real concern to you.
     
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  7. Koly™

    Koly™ Member

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  8. Yornovich

    Yornovich New Member

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    Thanks for the replies peeps!
    Seeing as the 3900x's single core speed is only about 4-5% slower than the 9900k's, would this really make a noticeable difference? I'm really leaning towards the 3900x because it's much more advanced technology-wise compared to the 9900k so if it's not a huge difference I'll be going with the 3900x. Especially since it's more future proof and future games will be designed with more emphasis on multi-core performance. It should also be noted I like to play other games and do a lot of combat flight sims as well.

    I'm currently playing R3E VR on a i7 7700/gtx1060 laptop which cant even hold a steady 45fps with ASW so I think I'll notice a HUGE improvement in my experience anyway.

    In my opinion the lack of competition has made Intel lazy and they definitely dropped the ball with this last gen of CPU's, this is why I'm a bit reluctant to give Intel my hard earned $$$
     
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  9. Vale

    Vale New Member

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    I think Intel´s complacency ended with series 7 and they have stepped up their game with serie 8 and will continue to do so with the next generations.

    The other battle taking place is between Radeon and Nvidia and this can only benefit us as buyers.

    I reckon it´s worth waiting to see how the battle develops over the next year as prices can only fall and specs can only improve.

    However, one could argue that the biggest work now is in the hands of game devs to optimise the use of these new chips. It´s amazing that in 2019 we are still being constrained by games based on older versions of DX and not using fully multi threading.
     
  10. Koly™

    Koly™ Member

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    1) Don't forget that in gaming, for 8 cores used, the Ryzen frequencies drop to 4.3ghz, but the i9 9900K can easily have constant 5.ghz on all cores or more !
    so the difference is 8x10% ! Raceroom or rF2 will use 2 cores...PC2 probably a little bit more...

    2) Don't focus only about CPU, a very good RAM DDR4 with low CAS latency may change your framerate for about 30% ! (this is the reason why there is ram at 100$ and other at 400$)

    3) The motherboard is very important, with very good MB, you will have better VRM for a better reliability and maybe stability.

    That's why in conclusion, for some specific games and with some hardwares you can have a difference for about 100 % !

    I need to know what is your monitor refresh frequency and the resolution, gsync, and the games you want to play to give a better comparaison.
    But I prefer Intel/Nvidia, the safest choice to have the better gaming performance.


    For 150$ you can buy a i5 9600K, which has the same result in raceroom, rF2 and many games as the i9 9900KS. And when you will need more cores/threads you can upgrade to the i9 9900KS easily, cause it's the same chipset...

    Remember, for gaming at 8 cores : 80% difference !!!
    Noticeable ? yes.
     
    Last edited: Jul 21, 2019
  11. Thomas Jansen

    Thomas Jansen Sector3 Developer Beta tester

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    That is not really how math works :p I do agree on the RAM part though, can make a bigger difference than a CPU upgrade.
     
  12. Yornovich

    Yornovich New Member

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    I've included the RAM, GPU and monitor I will be using in my original post, so read it a bit more carefully.
     
  13. Yornovich

    Yornovich New Member

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    As a dev, what would you recommend?
     
  14. Koly™

    Koly™ Member

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    I recommend i5 9600K at 150$ (later you can easily upgrade to i9 9900KS) + z390 + DDR4 3200mhz and 144hz GSYNC 1440p monitor.
    Your gaming experience will be so far better in Raceroom, rF2 and many others games.

    For Raceroom and to conclude about your main question, the i9 9900K is (far) better.
    The i5 9600K is far far far better than any Ryzen in Raceroom (price and perfs).
     
  15. Yornovich

    Yornovich New Member

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    Why would I have 3200hz RAM and a worse CPU? Obviously I have the budget for better.
    Also, again, read the OP. I will be doing my racing in VR on Oculus CV1
     
  16. Koly™

    Koly™ Member

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    the better is INTEL. and for Raceroom any Ryzen is worst than i5 9600K.
    If you have the budget : i9 9900K(S) + 2080ti, it's the best.
     
  17. Yornovich

    Yornovich New Member

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    Why? Without any proof or good reasoning behind it I don't see it.
     
  18. Koly™

    Koly™ Member

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    For raceroom or rF2 or many games :
    - i5 9600K at 5ghz destroys any Ryzen, simply cause Ryzen can't go at this frequency. Raceroom is CPU demanding, read my post I have posted many times carefully.
    https://forum.sector3studios.com/in...y-ai-before-fps-drop.13273/page-2#post-181152
    The Ryzen perf can only be worst.

    Other post really interesting :
    https://forum.studio-397.com/index.php?threads/low-gpu-usage.59874/page-3#post-990010
    https://www.racedepartment.com/threads/new-gaming-computer.168393/#post-2972425

    Why do I use the word "destroy" ?
    simply, for 150$, the i5 9600k will do far better than any Ryzen (even the 3900X at 500$) in Raceroom or rF2 ( for gaming with BF5 for example, or ACC, I recommend the i9 9900K even if the i5 works very well.)
    WIth the money saved, buy the fanatec V3 pedals :)
     
    Last edited: Jul 21, 2019
  19. Yornovich

    Yornovich New Member

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    Single core OC performance is only 5% better for the i9 9900k vs the Ryzen 9 3900x
    I don't see the relevance of the links you provided other than it proving that R3E is CPU hungry. I will NOT be gaming at 144Hz and will be using VR. I'm going to pair it with a RTX2080 gpu and not a gtx1070.
     
  20. Yornovich

    Yornovich New Member

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    So far what I've seen from benchmarks of other games (also CPU hungry ones in there) the difference is only marginal and the Ryzen starts to pull ahead when resolution increases.
    IF someone could explain WHY I should go i9 except for the 5% better OC single core or why it's such a big difference, and please don't provide examples of older hardware like GTX1070's because obviously a RTX2080 is gonna act a lot different in combination with either of the CPU's.