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  1. #1

    Far Cry 4 - Vsync problem.

    Hello!

    I would like to ask does someone have similar problem with Far Cry 4 on PC.

    First of all there is my PC specs:

    i5-2500K
    8 GB RAM
    GTX 970

    The game has problem with FPS with Vsync enabled.

    I'm playing on ultra settings with all Nvidia features except of PCSS Shadows and these configuration gives me ~60 FPS most of the time. But when I enable Vsync in-game (normal mode) and triple-buffering then huge lag spikes appears - from 60 FPS to 30 FPS. It is very frustrating.

    If I disable Vsync there is no problem with FPS drops but in consequence there is screen tearing which is normal and understandable.

    In every other game with Vsync enabled even if FPS drops to ~50-55 I don't have similar problem.

    I tried to disable Vsync and Triple Buffering in-game and force them via Nvidia Control Panel but it didn't help.

    Actually I found workaround - Adaptive Vsync. If I remember correctly, using the borderless window mode instead of fullscreen mode also helps.

    EDIT: The game is updated to newest version (1.10.0), GPU drivers are up to date too, and I verified game files via Uplay.

    Does someone has similar problem? Is there something wrong with FC4 Vsync implementation?
    Thanks in advance,

    Greetings.
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  2. #2
    WID992007's Avatar Senior Member
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    what monitor are you using?

    keep in mind V sync will lock you to 60 or below on a 60 Hz screen

    also close all backround application before you launch the game

    yes this includes evga precision as well as MSI afterburner..and that silly geforce EXP program
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  3. #3
    WID992007's Avatar Senior Member
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    my specs

    Intel Kaby Lake I5 7600K @ 4.4 GHZ <(via asus auto tune in my bios )
    Cooler Master 212 Hyper evo \ 2 red 120 MM led fan
    ASUS ROG STRIX z270 H GAMING motherboard
    16 gig of Crucial Ballistic Sport DDR 4 2400 ram\ 4 X 4 gig dimms
    Gigabyte Windforce 2 GTX 1060 OC model \ 6 gig vid card
    500 gig Samsung 840 EVO SSD \ boot drive
    2 TB Toshiba HDD storage drive \ 7200 RPM 64 meg cache
    LG DVD burner
    Thermaltake Versa V 22 special editon case \4 120 mm CoolerMaster fans + 1 yellow exhaust fan by GPU
    Thermaltake 500 WATT 80+ power supply
    Seiki LC40G81 40" 1080p 120Hz LCD HDTV
    Windows 10 Pro 64 bit

    never drops below 120 FPS in 1080 P .. or below 90 in 1440 P
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  4. #4
    Thank you for reply.

    GPU-Z and Core Temp are the only ones monitoring programs I use. Do you think they can cause such problems with Vsync? Also I don't use GF EXP.

    In terms of monitor, it is standard 60 Hz LG FullHD IPS model.

    Currently there are some workarounds as I said before:

    1. Using borderless window mode.
    2. Changing from Fullscreen to borderless and again to Fullscreen also fixes the problem.
    3. Using Adaptive Vsync forced via NCP.

    But to be honest I would like to have a "definitive" fix for this "bug", because for example changing display modes after every start of the game is kinda frustrating.

    I discovered one more bug with Vsync (when it's enabled in-game along with Tripple Buffering) - sometimes after starting the game there are no such drops from 60 to 30 FPS but there is screen tearing as with Vsync completely disabled but FPS doesn't exceed 60 FPS. Then I use workaround #2 - tearing disappears.
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  5. #5
    WID992007's Avatar Senior Member
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    dunno i guess i don't have the problem due to my 120 Hz screen ? (and yours is a 60 hz screen ?)
    could also be a driver problem ..its possible ?? i use only drivers from my vid card makers site 384.76 right now with the latest vid bios installed on my GPU
    Screw Nvidia and their latest game ready drivers ..half the time they make my PC run stuff slower

    for a screen i use a

    Seiki LC40G81 40" 1080p 120Hz LCD HDTV ( its on a swivel base right next to my desk )

    if i wanna play in 1440 P i use Nvidia DSR , try giving DSR a try?? ..then you wont need aa you may see better fps and less tearing ?

    here are my in game settings (in case it helps )
    my in Game settings are Custom
    resolution 1920 X 1080
    vsync - on
    Quality settings
    motion blur off - not a fan of it ..
    Textures - Ultra
    Shadows - High <--- (Nvidia PCSS Soft Shadows will kill your FPS )
    Post FX -Ultra
    Geometry - Ultra
    Vegetation- Ultra
    Environment - Ultra
    Water - Ultra
    Ambient Occusion setting is SSBC
    Antialising settings is SMAA
    God rays - off- not a fan of how it looks (can make the game unstable..even on Titan X and GTX 980 Ti cards )
    Fur - on
    Trees relief -on
    in Advanced settings
    Triple buffering - off
    Vsync mode - Normal


    in Nvidia control panel, i made these changes
    Anisotropic Filtering = 16 X
    Max Pre Rendered Frames = 1 or 3
    Set Power Management Mode = Prefer Max performance


    game looks fine to me and plays stutter free on my system with zero crashes


    also i did install Razer Cortex game booster version 7.0 as it does seem to help with this game
    http://www.filehorse.com/download-ga.../old-versions/
    *(note newer versions of cortex do not seen to work as well , at least for me so i stick with 7.0 )

    also if ya got win 10 shut off the game bar an game mode settings , i keep that crap off

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  6. #6
    Okey, thank you I will try your suggestions and hope it will help.
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