Originally Posted by Glammer19
My Q9FN was delivered today and have been testing it out using PS4 Pro and Xbox One X. I’ve been using a 55W900 for the last 5 years and it’s been fantastic, but I wanted to upgrade to 4K HDR.
Initial impressions were excellent, that was until I tried some 30 FPS games. First I played Assassins Creed Origins and then Far Cry 5. I expected to be blown away but I couldn’t believe the amount of doubling images I was seeing when in motion. I was using game mode (not game Motion Plus or Freesync), and it was just horrible. I tried changing settings but couldn’t get rid of this effect. I then switched back to my W900 and the difference is smoothness and eye comfort was massive.
I have been trying to find out what is causing this difference and my theory is the use of PWM. My W9 doesn’t use it, but the Q9 does, and at 120hz in game mode. If anyone has any other suggestions as to what it may be I’d be grateful to hear them.
If I can’t find a fix (doubtful now) then the Q9 is going back, I can’t stant 30fps motion like that.
Not sure whether to go X900F (also has PWM but at a much higher 720Hz) or LG C8, bearing in mind this is primarily for gaming.
Hi friend, I come from the same TV and have the same problem. The reason this happens is because Samsung's backlight (PWM) always flickers a 120hz, except in movie mode where it's something like 480hz, while Sony 55w900 flickers at a MUCH higher rate, regardless of the frame rate or refresh rate of the source. The only partial solution is to use Motion Plus Settings -> Judder Reduction set to max (works on sub 60 fps material) and or Blur Reduction (up-samples 60fps or above to 120fps). This will effectively remove the double images, note to that enabling Judder Reduction does incur a very small amount input-lag and you can get some interpolation artifacts as well but it may very well be worth it on 30fps material. On 60fps material you can instead enable LED Clear Motion (Black Frame Insertion) and you will get amazingly clear motion, without double images and the TV doesn't dim that much, still plenty bright (not in HDR tho).
I've been wanting to upgrade to a 4K HDR capable TV for some time and I love Sony's image quality and motion handling but as a big gamer Samsung is the only LCD manufacturer (Vizio is not available in EU where I live) that focuses on low input-lag across all resolutions 720/1080/4k and gaming features, they even support 1440p at 120hz which is pretty amazing. Sony on the other hand completely lost it after the W900 series and all other sets has had poor input-lag until very recently and then only at 4k or else add one frame of upscale lag or more on top of the input-lag. The funny thing is that the Q9FN is clearly made with gaming in mind but the fact it looks so horrible in 30fps and not the best in 60fps is a BIG failure in my opinion. Tho, this is much less visible when the content has motion blur, like in movies, still there is a faint 120hz flicker to statick images where the Sony is completely calm. If you have a modern game that supports motion blur it can definitely help with hiding the double images, but it still sucks. If all this is unacceptable you could potentially look at Sony's Z9F(ZF9) as it has low input-lag across all resolutions. That TV is probably among the best right now but it does have one major flaw and that it has a very poor native contrast ratio, and even with back light dimming enabled it still suffers from noticeable blooming causing grayish blacks, this is a hilarious unacceptable joke being the successor to ZD9, which has among the best local dimming and contrast on the market to day, despite being a couple of years old. On the plus side, it's HDR is brighter than Q9FN and has EXTREMELY good viewing angles for an LCD TV, near OLED levels. I was seriously considering buying this set but it has taken ages for it to arrive and I couldn't wait for it and then the news of the blooming came and I decided to go with Samsung. The simple truth is you and I have been spoiled by the nearly flawless 55W900 these last years and currently there is no TV on the market that is without flaws at the moment, you simply have to compromise. I think OLED look amazing but then you can't use it as a monitor or grind a game like I do with Tekken without static content like life bars burning-in. Also now that I've tried HDR in Fortza Horizon 4 and Shadow of the Tomb Raider, I just want an even brighter set, I'm actually upgrading to the Q900R because of this, and I couldn't imagine gaming on an OLED with a peak brightness of only 750 nits.
A good test page for motion handling is the TestUFO.com