Wouldn’t the latter give you lower input lag and better gameplay even though the frame rate is lower?

  • brunomarquesbr@alien.topB
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    10 months ago

    60fps is always going to feel smoother than 45fps. In 66ms you’re getting around 4 frames while using 60fps but only 3 frames with 45 fps. This is good for games with a lot of motion, such as racing games.

    However the input lag depends on the sync between the game and the monitor. The higher the monitor frequency, the sooner it “asks “ for a new frame. Having a higher frequency means it waits less time before asking for a new frame .

    The max input lag is dictated by the monitor frequency. For example, a game that runs at 45fps (and has a frame time of 1s/45= 22ms) has a maximum input lag (the delay between the frame being ready and being displayed in the screen) of 11ms because the screen is checking for a new frame at 90Hz (1s/90=11ms)

  • jonginator@alien.topB
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    10 months ago

    Just went through the DF video again and here are the latency results for Doom Eternal specifically for 60 fps or lower.

    Ranking wise:

    OLED 60fps/60hz > LCD 60/60 = OLED 45/90 > OLED 40/80 > LCD 45/45 > LCD 40/40 = OLED 30/90 > LCD 30/60.

    There is a 0.2ms difference between LCD 60/60 and OLED 45/90 and 0.3ms difference between LCD 40/40 and OLED 30/90.

    Now, I did not play Doom Eternal specifically but I’ve been playing Batman: Arkham Knight on and off between 30 fps and 40 fps on the OLED and I have been wondering why 30 fps surprisingly feels pretty good.

    If the input lag numbers for that game is in the general ballpark for the input latency differences for Doom Eternal, that does make sense.

    It’s crazy that 30/90 on OLED feels as responsive as LCD 40/40 which has been long considered the “Golden 40”.

    If you look at the numbers for their Crysis 3 Remastered, OLED 30/90 actually has a 10% input latency reduction over LCD 40/40.

    I might just play 30/90 for all AAA games since it looks like at worst, it feels as good as the “Golden 40” of LCD Steam Deck but as is the case with Crysis 3 Remastered, OLED 30/90 actually feels better.

  • brunomarquesbr@alien.topB
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    10 months ago

    Ok, let’s talk frame times first:

    1s / 90Hz = 11ms

    1s / 60Hz = 16ms

    1s / 45Hz = 22ms

    Vsync introduces a lag between the frame being ready and being display in the screen. This means input lag is heavily dependent on the screen refresh rate, the higher the refresh rate, the lower the vsync lag. Then we need to add at least one frame time to the vsync lag, which is the minimum required for us to see the new frame. So it goes like this:

    Screen / game vsync max input lag + single frame time Total input lag ^((excluding game engine/screen pixel response time))
    60Hz / 60fps 16.6ms + 16.6ms ~33ms
    90Hz / 45fps 11.1ms + 22.2ms ~33ms
    45Hz / 45fps 22.2ms + 22.2ms ~44ms

    The input lag between 60/60 and 90/45 is identical. Some game engines might work better with higher fps (they’re tie to game render frequency), so 60/60 has a slight advantage over 90/45 regarding input lag overall.

    60/60 shows 4 frames in 66ms, but 90/45 only presents 3 frames, so 60/60 is smoother.

    90/45 uses less battery and it’s generally more stable, as it gives more times for hiccups in the frame timing.

    In conclusion: 60/60 is preferred in high pace/action games (like shooters or racing games), but 90/45 is better in slower pace games, specially open worlds with big variance in scenes (like RDR2 or Spider-man).

  • fediverser@alien.top
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    10 months ago

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  • itsthechizyeah@alien.topB
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    10 months ago

    When I’ve been playing games lately, I tick the button for it to play in that games profile for power/performance but they all go to 90 Hz, and none of the other settings are different, so am I supposed to create these profiles? I thought that maybe they were pre adjusted. I’m not really sure how that works, anyone?

    • Good-Comment396@alien.topB
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      10 months ago

      I just Google name of game followed by steam deck settings and then look at the Reddit comments.

      You’ll find a selection - play around with them and find one that works for you.

      • itsthechizyeah@alien.topB
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        10 months ago

        I found a site ShareDeck via googling people posting about it here 8 months ago but it doesn’t seem that people use it a whole ton. It could be very useful it’s just that more people need to use it and make reports.

        So a question, i mentioned it in my last post but I’m not sure if anyone will see it cause its an edit but the per game profiles are those made by valve or et by the Deck initially? For example I loaded up The Divosion and Persona 4 and when I toggled the per game profiles in the performance blade, it had those games set at 90hz and no other settings were changed. Yes they both looked great but I’m interested in balancing for battery life and smooth gameplay. There are a bunch of settings (that I have no idea what they mean) that I would think I could tweak to get better battery life at good performance.

        • Helpful_Nectarine376@alien.topB
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          10 months ago

          My understanding is that the per game profile will default to a standard system wide set up until you then tweak the settings. Once you tweak those settings whilst in a game (and you’ve got per game profile set to on), these settings will be saved for this game the next time you open it.

          This means you can set up your own settings for each of your games - Steam doesn’t provide you with a per game default profile it’s just a default system wide one.

          Hope that makes sense.