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Should I Buy A 4K TV For Gaming Or Should I Wait?

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Cerb said:
You have also seen LCD TVs advertised as LED TVs, have you not? Read the fine print. Just as an, "LED TV," is not a TV that uses LEDs for its pixels, despite that technology existing, a 120Hz TV is not taking 120 frames from its inputs, despite that technology existing.





A TV will get you 60, at best, aside from whatever that one Termie is talking about is.
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Dude you are stuck in the past by about a year. Many tv's now take true 120hz PC input.
 
Cassius101 said:
http://www.futureshop.ca/en-ca/product/vizio-vizio-42-1080p-240hz-led-smart-tv-m422i-b1-black-m422i-b1/10317858.aspx?path=d6b6f27bfae1a7da1172a6ed40d712f4en02

So this TV won't do 1080p at 120hz? Why the hell do they advertise them at such high Hz then?
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TVs add duplicate frames for smoothing. The effect is intended to smooth 24fps film, and has an obvious effect.

It is most definitely not the same as displaying 120fps. There is no TV that can do 120Hz. It requires a very specialized panel that wouldn't be suitable for TVs due to the color and viewing angle limitations.
 
tential said:
I just wish they'd put freesync in their HDTV oled! But that's my next purchase if they hit mass production. It's the reason I held off on 4k led from Vizio. Oled? Above 70 inches? Yes please!
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The response time of OLED is 100-1000x that of LCD...you don't need free sync for that.
 
Cerb said:
Why not? Response time has nothing to do with adaptive frame syncing.
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Of course it does, one of the main benefits of syncing is removing screen tearing, which happens when the frame rate feed of the graphics card is much faster than the refresh rate of the monitor. This will never happen with OLED.
 
uclaLabrat said:
Of course it does, one of the main benefits of syncing is removing screen tearing,
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Right.
which happens when the frame rate feed of the graphics card is much faster than the refresh rate of the monitor.
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Wrong.
This will never happen with OLED.
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Wrong.

Screen tearing happens when the display's vertical refresh and the new frame buffer's completion, are not synchronized. It can and does happen at any framerate. For example, at 60 FPS, with a 60Hz output, if the frame is refreshed 4ms later in the video card's buffer than the start of the new frame's receiving on the display, you will get tearing, with about 30% of the previous frame taking up the top of the screen, and 70% of the new frame taking up the bottom of it. How far off the buffer swap and display blank are is all that matters, be it 15, 30, 53, or 500, FPS.

The panel's performance has nothing to do with it. If you run your display at 60Hz, every 1/60th of a second, a new frame starts to be transferred, and just before the next 1/60th begins for the next frame, that frame completes. It is taking a nearly-constant stream of new data all the time.

With G-sync or Freesync, the display can keep the old frame for another 4ms, and then not read anything new until told that the new frame is ready. This kind of technology should have been developed right after LCDs and digital video transports for PCs, but c'est la vie.
 
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Termie said:
TVs add duplicate frames for smoothing. The effect is intended to smooth 24fps film, and has an obvious effect.

It is most definitely not the same as displaying 120fps. There is no TV that can do 120Hz. It requires a very specialized panel that wouldn't be suitable for TVs due to the color and viewing angle limitations.
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The bigger issue is that the typical HDMI won't do anything above 60 Hz. With HDMI 2.0 that would be possible for 1080p but it's doubtful we will see much of that as TV tech seems to have stagnated aside from push to 4k and beyond for resolution.

Even with OLED blur is a reality. Many OLED smartphone screens can have trailing for different colors (for example my S4 trails on reds a bit) and even if that was not the issue, they would still need a way to strobe the image to properly get rid of the blur caused by image persistence. While refresh rate sync solves tearing and improves perceived smoothness, strobe backlights or equivalent are needed to eliminate motion blur properly.
 
kasakka said:
The bigger issue is that the typical HDMI won't do anything above 60 Hz. With HDMI 2.0 that would be possible for 1080p but it's doubtful we will see much of that as TV tech seems to have stagnated aside from push to 4k and beyond for resolution.
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Wrong. stop with the FUD in this thread. HDMI 1.4 is fine doing 1080p 120hz.
 
Out of hundreds to thousands readily available, that makes 8 (interestingly, the Vizio in question in this thread looks like it might be one, based on that).

If I were to survey the carnage at Walmart, or Best Buy, and randomly pick one up, what are the chances it would do 1080P@120Hz, if it calls itself 120Hz or 240Hz? Many have even commonly claimed 120Hz native panel refresh rate, to then not support it at all on inputs (interpolation only), or only with 3D HDMI.
 
Cerb said:
Out of hundreds to thousands readily available, that makes 8 (interestingly, the Vizio in question in this thread looks like it might be one, based on that).

If I were to survey the carnage at Walmart, or Best Buy, and randomly pick one up, what are the chances it would do 1080P@120Hz, if it calls itself 120Hz or 240Hz? Many have even commonly claimed 120Hz native panel refresh rate, to then not support it at all on inputs (interpolation only), or only with 3D HDMI.
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Very very low?

I'd hope you'd never randomly pick up an HDTV Panel without researching it first though.
 
kasakka said:
Even with OLED blur is a reality. Many OLED smartphone screens can have trailing for different colors (for example my S4 trails on reds a bit) and even if that was not the issue, they would still need a way to strobe the image to properly get rid of the blur caused by image persistence. While refresh rate sync solves tearing and improves perceived smoothness, strobe backlights or equivalent are needed to eliminate motion blur properly.
Click to expand...

OLEDs can do low persistence. The Oculus DK2 is an OLED panel that uses low persistence at a 75hz refresh rate. Apparently the only limit in going higher refresh is the controlling hardware for phone screens. I assume that an OLED TV would easily do 120hz low persistence if Samsung cared to do it and people were willing to accept the drop in brightness.

God I can't wait until OLED drops in price, the panels Samsung is coming out with now are ridiculous.
 
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