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Mini-Review: Samsung 40KU6400 as a monitor

Discussion in 'Monitors' started by Demon, Nov 5, 2016.

  1. JaAnTr

    Associate

    Joined: Aug 13, 2014

    Posts: 1

    Is the UE40MU6120 also ok to use as a monitor? Basically does it have the 4:4:4 chroma subsampling? I can't really tell what the difference between 6120 and 6400 is, besides the price.
     
  2. Grandmaster Fap!

    Sgarrista

    Joined: Jan 10, 2004

    Posts: 9,415

    Location: España

    Im interested in this also. Plus does anyone have experience of how 1440 looks on the 6400? 4k would be sweet but i doubt my 1070 would drive that with all eye candy on at 60fps+. I like 1440 in that regard as i can whack settings to full and mostly get 60fps.
     
  3. NZXT30

    Wise Guy

    Joined: Aug 3, 2010

    Posts: 2,062

    Yes it does 4:4:4. Very similar panels. The 6400 has slightly better contrast and grey uniformity.



    TVs usually do a great job displaying non-native resolutions.
     
  4. Grandmaster Fap!

    Sgarrista

    Joined: Jan 10, 2004

    Posts: 9,415

    Location: España

    Cheers mate, id be moving from a Benq BL3200 to the 6400, am i mad to switch? :D
     
  5. Pulseammo

    Wise Guy

    Joined: Jan 10, 2006

    Posts: 1,094

    Location: Glasgow

    Any idea if this applies to TVs in PC mode though? I thought that in order to cut out input lag it had to run without the fancy scaling stuff?
     
  6. NZXT30

    Wise Guy

    Joined: Aug 3, 2010

    Posts: 2,062

    PC mode turns off unnecessary post processing. Monitors also have scalers built in, TVs usually have better ones.
     
  7. padre

    Associate

    Joined: Mar 12, 2018

    Posts: 2

    I've been using MU6400 40" for a week on PC setup with 1080ti for a week and and I'm very pleased so far.
    I bet that 1070 would handle 4k gaming on this thing as well(not on full ultra settings but playable). So far I have tried PUBG, Killing Floor 2, MechWarrior Online and few others. Even my friends liked this setup. As a monitor its really acceptable with this size and dot pitch.
     
  8. Grandmaster Fap!

    Sgarrista

    Joined: Jan 10, 2004

    Posts: 9,415

    Location: España

    @padre
    Glad you are liking it :) Could you possibly run a game in 1440 just to check the image quality for me? I'll probably run it in 4k but if 1440 looks ok i'll be a happy gamer, it'll at least give me a choice :)
     
  9. Mr Ripper

    Associate

    Joined: Oct 2, 2008

    Posts: 35

    Location: Devon

    I've just ordered a 40MU6400 + Club3d mini displayport 1.2 to hdmi 2.0 adaptor. I've only got an AMD 7970 but I'll run custom resolutions for the time being and the odd old game may work at 4k - It should be good to use with my high res photography.
    It'll replace my 2012 27" Catleap 1440p monitor and my 23" dell 1080p monitor with connected standalone satellite tuner.
     
  10. Reppyboyo

    Mobster

    Joined: May 3, 2004

    Posts: 3,033

    1440p looks fine to me.
    A bit 'soft' sure but it's worth it to keep the fps up.

    A lot of games run fine in 4k though with some tweaks.
     
  11. Grandmaster Fap!

    Sgarrista

    Joined: Jan 10, 2004

    Posts: 9,415

    Location: España

    Thanks for that Reppy :)
     
  12. uniQ

    Mobster

    Joined: May 8, 2011

    Posts: 4,910

    Location: HQ

    I bought one based on this thread but ended up returning it. If you looked at it on it;s own it looked sharp but compared my U3415W and S2417DG Monitors it looked slightly "off". I found it giving me a headache even after short periods of web browsing. Otherwise a nice TV. I definitely had it setup correctly with 4:4:4 etc
     
  13. sadbuttrue

    Hitman

    Joined: Oct 14, 2004

    Posts: 932

    That'll be the PWM causing headaches.

    The built-in image processing seems to soften images resulting in lost detail. On the few TVs I've tried recently 1080p bluray content looks almost like SD content when compared to a PC monitor side by side.
     
  14. padre

    Associate

    Joined: Mar 12, 2018

    Posts: 2

    I can confirm that. Tried Killing Floor 2(Unreal 3 Engine) in 1440p and scaling works really well. Still helluva playable.
     
  15. Grandmaster Fap!

    Sgarrista

    Joined: Jan 10, 2004

    Posts: 9,415

    Location: España

    Thanks for that padre :) Think i'll be pulling the trigger on one of these!
     
  16. uniQ

    Mobster

    Joined: May 8, 2011

    Posts: 4,910

    Location: HQ

    Thanks for that I think you were right. I picked up a Sony KD43XE7073, as according to rtings it has similar input lag as the Samsung and no PWM/Flicker, so far no eyestrain/headaches :)
     
  17. justwondering

    Gangster

    Joined: Oct 20, 2011

    Posts: 374

    I have the UE40MU6400, with a 1080ti, 4k looks great, for those wondering about 1440p yes the TV has a good scaler and 1440p for gaming looks great too.
     
  18. justwondering

    Gangster

    Joined: Oct 20, 2011

    Posts: 374

    Out of interest which setting do people tend to use with their UE40MU6400 444 442 RGB etc? I see 442 allows upto to 12bit (I know the panel is only 8+frc) or rgb with full range or 444 with limited running at 8bit?

    Which is best and most importantly why?
     
  19. markoboyo11

    Wise Guy

    Joined: May 3, 2007

    Posts: 1,388

    Is anyone managing to run custom resolutions with this tv at 60fps?

    Anytime I set one up it runs at 30fps.

    Would like to run lower resolutions sometimes with 1:1 pixel mapping and black borders.
     
  20. the_boy

    Associate

    Joined: May 28, 2013

    Posts: 7

    So I just got this TV today and think I've set it up correctly.

    I'm running with a GTX970 and a HDMI 2.0 cable however how do I get it to stop cutting out?
    This happens in games, standard browsing and films. The TV will go black / flicker from a heartbeat to a couple of seconds and can do it quite often or last a few minutes.

    I'm assuming it's something to do with the lag?