ESR - Samsung 2233: 0ms input lag (PROOF!)

<< Comment #1 @ 20:33 CDT, 14 August 2009 >>

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could you test if it lags at non native res?(ie 640x480 800x600 ..)

I ask because eventually my hardware is going to fall behind and I wouldn't want to choose frames per second vs monitor ms delay on something like doom 4.

Edited by oreozz at 20:34 CDT, 14 August 2009

<< Comment #2 @ 04:17 CDT, 15 August 2009 >>

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crack - Reply to #1

I could do that, yes. But are you aware of the fact, that non-native resolutions can be scaled by the graphic card's driver to the native resolution, so that the monitor doesn't have to do any scaling?! I play at 800x600 myself and the input lag screenshots were taken at a resolution of 1024x768@120hz.

<< Comment #4 @ 05:12 CDT, 15 August 2009 >>

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oreozz - Reply to #2

would you like to invest in a new monitor for me

<< Comment #3 @ 05:06 CDT, 15 August 2009 >>

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koOma - Reply to #1

good looking out...BROKEASS!!1
nah seriously that's a pretty good post.

<< Comment #8 @ 03:33 CDT, 16 August 2009 >>

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link - Reply to #1

2233rz does 120hz, no matter what resolution.

at least thats what i've read here on esr :x

<< Comment #9 @ 08:52 CDT, 16 August 2009 >>

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f0cus - Reply to #8

he was asking about input delay, not refresh rate.

<< Comment #11 @ 15:54 CDT, 16 August 2009 >>

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link - Reply to #9

oh ok!

<< Comment #5 @ 06:19 CDT, 15 August 2009 >>

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vicek

too be honest i did some tests as well (and i wrote something different, that input lag is noticable but pictures do not show it :P)

just one picture isn't very reliable so i took a bit more and usually it was either 0ms or something 15ish... don't know why. however, i think that testing environment wasn't proper (somehow i can't run windows with two monitors connected, i mean one will always turn off, maybe it's some power problem, so i had to test it under windows safe mode)

i will try to test it once again when i got some free time :)

<< Comment #6 @ 10:59 CDT, 15 August 2009 >>

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crack - Reply to #5

what shutter speed did you select at you camera?

<< Comment #7 @ 12:11 CDT, 15 August 2009 >>

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vicek - Reply to #6

hmm i think it was default value, can't check now ( wasn't my camera, still some cheap one)

all-in-all numbers don't change fact that this sceren is really good :)

<< Comment #10 @ 10:07 CDT, 16 August 2009 >>

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terrorhead

24" version plz

<< Comment #12 @ 16:50 CDT, 16 August 2009 >>

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Lethe - Reply to #10

greed ftw

<< Comment #13 @ 03:51 CDT, 17 August 2009 >>

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terrorhead - Reply to #12

Don't want to downgrade thats all.

<< Comment #15 @ 12:37 CDT, 17 August 2009 >>

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f0cus - Reply to #13

22" @ 120hz > 24" @ 60hz + 18ms response time (typical for TN panels of this size)

So it's not reallllly a downgrade, would just look like one to the untrained eye. ;)

<< Comment #14 @ 05:31 CDT, 17 August 2009 >>

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Anonymous (dc51479fa8.adsl.wanadoo.nl)

Could anyone else with this monitor confirm this?

<< Comment #16 @ 16:36 CDT, 17 August 2009 >>

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Anonymous (084202166072.customer.alfanett.no)

did you teste with the crt on 120hz too or just 75 or something?
Think many teste like this dont run the crt at 120hz..

<< Comment #17 @ 17:02 CDT, 17 August 2009 >>

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crack - Reply to #16

1024x768 @ 120hz (on BOTH monitors)

<< Comment #18 @ 18:29 CDT, 17 August 2009 >>

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wch

Awesome. Cheers for the info!

<< Comment #19 @ 18:52 CDT, 17 August 2009 >>

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h8m3

I'm pretty sure it HAS delay
afaik since 9th or 10th flash player the applications are updated each 16 or 15ms (it's like they run at 60 fps) so it's almost impossible to catch the delay less than these 15-16ms
basically it's like testing both monitors at 60hz - you will never be able to catch less than 15ms (input lag + pixel responce time) delay.
So refreshing every 8ms (refresh rate) the monitor will show the latest screen of the application which refreshes only every 16ms. Makes it totally bullshit to test input lag, almost impossible to catch it.
You can check the program yourself - try pressing start-stop very fast, all values you will get will be constant-like 109ms, 125ms, 141ms, 157ms and so on. All're 16ms different.
Might be not the flash failure but the application itself, dunno.

Try using this: http://www.hardforum.com/showthread.php?t=1423433
and you will see the input lag.
Oh and to do such tests you need a better camera, i cant see shit ;D

Edited by h8m3 at 18:55 CDT, 17 August 2009

<< Comment #20 @ 07:11 CDT, 18 August 2009 >>

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crack - Reply to #19

Now that is a pretty interesting testing method... And I just tried it.

I took a total of 19 pictures at 1024x768@120hz (Vsync on, the tool you suggested had constant 120fps as Fraps showed me). Of course, the metering of how far such a white bar is behind is rather subjective, I claim it may differ like 20% as visual judgment isn't that accurate.

In the following, the term "effective input lag" is used as a combined value of input lag + pixel response time.

Now the results: Within the 19 pictures I took, none was further behind than 0.5 frames, which makes a maximum of 4ms effective input lag (since 1 frame at 120hz is ~8ms). The lowest effective input lag was at 0.3 frames, which makes a minimum of 2.5ms. As an average number I calculated ~0.4 frames, which is ~3.3ms.

I think those numbers a pretty reasonable, considering nowadays' pixel response times...

Edited by crack at 07:16 CDT, 18 August 2009

<< Comment #22 @ 14:27 CDT, 28 August 2009 >>

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cYmoZz - Reply to #19

prad.de released part one of an article about the inaccuracy of normal input lag tests and the reasons:

One interesting thing is that usual graphic cards do not have a syncronised output for two displays. This means that even if you have identical displays with 0 input lag, one display can show a different image then the other.

http://www.prad.de/new/monitore/specials/inputlag/inputlag.html (german)

<< Comment #21 @ 16:20 CDT, 18 August 2009 >>

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www.ninemil.com

Good shit