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  1. #1
    ROG Guru: White Belt Array JOSHSKORN PC Specs
    MotherboardRampage V Extreme
    Graphics Card #1GTX 980

    Join Date
    Sep 2015

    What kind of performance would I get with the RTX 4090 on this board?

    My PC is still thriving, 8 years later. I don't dare want to get rid of it yet, but my video card is the only thing holding it back for now. I've got the GTX 980 SC'd, which was great in its day, but it doesn't handle the Ultra 1080p games that's out nowadays all that well.

    I've so far seen one benchmark of the 4090 on a PCI-e 3.0 x16 slot. Compared to PCIe 4.0, there isn't much of a difference. In fact, it would appear that the RTX 3090s perform better than the RTX 4090 at lower resolutions (like 1080p or 1440p, for instance).

    Thoughts? Would my computer even boot up with the RTX 4090? I'm on a Rampage V Extreme and the 5960x CPU.

  2. #2
    Moderator Array world PC Specs
    world PC Specs
    MotherboardASUS PRIME X470-PRO
    ProcessorRyzen 3600x
    Graphics Card #1ASUS ROG Strix 1080 ti
    Sound CardAune T1 DAC
    CPU CoolerThermaltake Water 2.0
    CaseJonsbo U4
    Power SupplyCooler Master V1200
    Mouse Asus ROG Chakram X
    Headset Sennheiser HD598

    Join Date
    Feb 2017

    Your 5960x will be bottlenecking the 4090 quite a bit.

    Unless you're planning on upgrading your cpu/motherboard sometime soon, I would say it's probably not worth pairing the 4090 with the old hardware!

    Of course, it depends on what you're playing and what kind of FPS goals you have too

  3. #3
    ROG Guru: Orange Belt Array pndiode PC Specs
    pndiode PC Specs
    Laptop (Model)ASUS G752VL-DH71 Win 11 Pro 21H2
    MotherboardROG Maximus XII Formula
    Memory (part number)G-Skill F4-3600C19Q-32GTZRB
    Graphics Card #1ROG Matrix GTX 980TI -P-6GD5 Bitspower Water Block
    Graphics Card #2ROG Matrix GTX 980TI -P-6GD5 Bitspower Water Block
    MonitorLG UltraGear 32GN50T-B
    Storage #1WD Black SN750 1TB
    Storage #2WD Blue 4TB (4 ea)
    CPU CoolerEK PE 360 (Top), PE 240 (Front), and Xres 100 Elite
    CaseROG Strix Helios
    Power SupplyThermalTake Toughpower 1200W
    Keyboard ROG Strix Scope RX
    Mouse Logitech MX Master S2
    Headset ROG Strix Fusion 300
    Mouse Pad Generic
    Headset/Speakers Bose Companion 3 Series II
    OS Windows 11 Pro 22H2
    Network RouterGeneric
    Accessory #1 Corsair ML140 (4 ea), Corsair ML120 (3 ea)
    Accessory #2 ASUS External 16X BLU-RAY Writer

    Join Date
    Jan 2016

    Thoughts? Would my computer even boot up


    I do not know how accurate (not updated) these calculators are but try it. See what might happen.


  4. #4
    TeamROG Moderator Array xeromist PC Specs
    xeromist PC Specs
    Laptop (Model)Intel NUC laptop LAPQC71D
    MotherboardROG Crosshair VIII Dark Hero
    ProcessorAMD 5800X
    Memory (part number)32GB G.Skill Ripjaws V 3600
    Graphics Card #1ROG Strix RTX3090Ti
    Sound CardSound Blaster Z
    MonitorAORUS FV43U
    Storage #1Samsung 970 Pro 512GB
    CPU CoolerCustom loop
    CaseBeQuiet Dark Base Pro 900 V2
    Power SupplyCorsair HX1000
    Keyboard ROG Strix Flare II Animate
    Mouse ROG Chakram X
    Headset Steelseries Arctis Pro Wireless
    Mouse Pad ROG Scabbard
    Headset/Speakers Logitech z906 5.1
    Network RouterpfSense/OPNsense
    xeromist's Avatar
    Join Date
    Jul 2010

    You would be able to run the GPU but your CPU will hold you back, especially if you only need 1080p. Such an expensive card would be wasteful. You could get perfectly acceptable performance from a used 2080 or 3070 and save money for the next whole-system upgrade.
    * Support disease research with Folding@Home *

    < < < Click the drop-down above my avatar for my PC specs!

  5. #5
    Administrator Array Silent Scone@ROG's Avatar
    Join Date
    Mar 2016


    You will be CPU limited in many situations with anything below 4K, and even then still fairly so. The 4090 will bottleneck an overclocked 12900K at 4K in certain scenarios.

    That's not to deter you, but you should consider upgrading the rest of your system - or perhaps consider something other than a 4090.

  6. #6
    ROG Guru: Yellow Belt Array
    Join Date
    Jul 2015

    PCI-e 3.0 x16 slot. Compared to PCIe 4.0 is zero difference, even PCIe 5.0 would make zero difference, thats reason nvidia did not even make 4090 compatible with it, i am using 4090 with my 7 yearold 6700K cpu, and it runs great, but i play at 4K.

  7. #7
    ROG Guru: White Belt Array JOSHSKORN PC Specs
    MotherboardRampage V Extreme
    Graphics Card #1GTX 980

    Join Date
    Sep 2015

    Thanks all for the replies. I'm only interested in bettering the performance of Microsoft Flight Simulator. According to MSI Afterburner/Rivatuner, my GPU is what is severely limiting performance, as it approaches the high 90 % range, while the CPU usage is quite low by comparison. I'm currently on a 10-year old monitor, 1080p, which still works today. Until it no longer works, I'm not interested in upgrading it, either. At 27", if/when I need to upgrade, I may go for a 32" 4K monitor. This is for a computer desk, so viewing distance is roughly the length of my arm, maybe slightly more. I did upgrade my RAM just over a year ago to 64GB and I've only used about half that amount when purposely throwing everything at it. (MSFS Flight Sim on Ultra plus many browser windows open). I imagine the RAM usage would've been higher, if my GPU hadn't bottlenecked the system.

    I think for now, I'm going to look into adding a SSD, particularly if I can get my hands on an 8TB SSD for a good price for Black Friday. I'm currently seeing them for about $650 on both Amazon and NewEgg. I also have a 10TB HDD which is too slow in terms of performance for what I need it for, basically Hyper-V (VMs).

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