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Pixel Response And Input Lag

Please click here to read up on our pixel response and input lag testing procedures.

Since the XB280HK maxes out at 60Hz, it can’t quite keep up with the 144Hz monitors in these tests. It is, however, the most responsive 60Hz screen we’ve ever tested. That’s a good thing considering there’s no motion blur-reduction available.

Here are the lag results:

If you want the lowest input lag, you’ll have to go to 120 or 144Hz. And the reality with variable refresh technology is that you’ll rarely be running frame rates that high unless you have serious horsepower under the hood of your PC. That is mitigated by the extra smoothness and tear-free images provided by G-Sync and FreeSync. Still, at 53ms, the XB280HK is the fastest 60Hz monitor we’ve ever tested.

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Christian Eberle is a Contributing Editor for Tom's Hardware US. He's a veteran reviewer of A/V equipment, specializing in monitors. Christian began his obsession with tech when he built his first PC in 1991, a 286 running DOS 3.0 at a blazing 12MHz. In 2006, he undertook training from the Imaging Science Foundation in video calibration and testing and thus started a passion for precise imaging that persists to this day. He is also a professional musician with a degree from the New England Conservatory as a classical bassoonist which he used to good effect as a performer with the West Point Army Band from 1987 to 2013. He enjoys watching movies and listening to high-end audio in his custom-built home theater and can be seen riding trails near his home on a race-ready ICE VTX recumbent trike. Christian enjoys the endless summer in Florida where he lives with his wife and Chihuahua and plays with orchestras around the state.

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26 Comments Comment from the forums

Frozen Fractal

On first glance I thought I wouldn't have to see "we will be reviewing XB270HU soon" quote again. But then I realized it's XB280HK. Oh well, guess have to endure that quote for few more time :rolleyes:

Contrast ratio, brightness, chromacity & gamma tracing is where XB280HK looses the ground, but to be fair, most of the gamers won't be noticing much difference at all. But it is kind of disappointing to see Planar do better in these fields than Acer utilizing the same panel. I don't know, maybe the overdrive somehow worsen the results?

But ofcourse, it does well on uniformity and response time. Makes me wonder why XB280HK doesn't have ULMB if it's supposed to be a bundled feature with G-Sync. That should've helped in 60Hz panels more, rather than 144Hz ones.

But anyway, XB280HK looks promising, although I don't think 4K is what I prefer for gaming+life (although I do for gaming only).
Reply
deuce_23

Sorry if i missed it but what version display port is it?
Reply
Frozen Fractal

16328127 said:
Sorry if i missed it but what version display port is it?

It's 1.2a I presume. Since that's what is capable of 4K@60Hz other than HDMI 2.0
Reply
boju

Should be at least version 1.2 for 4k @ 60Hz since this version has been doing this since year 2009. v1.2a is the same Res/Hz deal but brings added support for Freesync.

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picture_perfect

Why do they keep pushing 4K for gaming. True gamers have always regarded fps as king and 4K is one-quarter the frame rate of 1080. Gamers don't need expensive 4K monitors driven by expensive cards at ever-lower frame rates (via G-sync). This is chasing the proverbial tail and counterproductive. Regular 1080p, v-synced at a constant 144 fps would be better than all that stuff.
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spagalicious

Why do they keep pushing 4K for gaming. True gamers have always regarded fps as king and 4K is one-quarter the frame rate of 1080. Gamers don't need expensive 4K monitors driven by expensive cards at ever-lower frame rates (via G-sync). This is chasing the proverbial tail and counterproductive. Regular 1080p, v-synced at a constant 144 fps would be better than all that stuff.

*Competitive Gamers
People that like to play games also like to play games in ultra HD resolutions.

Reply
TechyInAZ

For peeps that want gaming at 4k now, this is the best option I've seen so far.
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picture_perfect

4K is cool but GPUs cant handle it well enough yet. I'd rather have 1080p at high fps and gain an extra 1-2 frames of lag, but to each their own.
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bystander

16328109 said:
But ofcourse, it does well on uniformity and response time. Makes me wonder why XB280HK doesn't have ULMB if it's supposed to be a bundled feature with G-Sync. That should've helped in 60Hz panels more, rather than 144Hz ones.

ULMB uses flickering to lower persistence, which reduces the motion blur. If you've ever used 60hz CRT monitors, you'll know that flickering is painful on the eyes. This is why ULMB mode is not offered on 60hz monitors, and likely won't be offered on anything less than 75-85hz.

Reply
bystander

16329841 said:
4K is cool but GPUs cant handle it well enough yet. I'd rather have 1080p at high fps and gain an extra 1-2 frames of lag, but to each their own.

Top end GPU's can handle 4K just fine. You just don't play it at max settings. What is better, medium to high settings and 4K, or maxed at 1080p? That is a subjective question, and will vary from person to person.

That said, I prefer higher refresh rates than 60hz, so I'll be going 1440p before 4K.
Reply