Testing input lag via timer vs human benchmark

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dunebeetle
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Joined: 22 Feb 2015, 18:12

Testing input lag via timer vs human benchmark

Post by dunebeetle » 22 Feb 2015, 18:14

I was testing a old Panasonic HDTV against a 120hz monitor I have with human benchmark
http://www.humanbenchmark.com/tests/reactiontime/

And I averaged about 111 ms faster on the 120hz monitor


But when I tested with timer here:
http://tft.vanity.dk/

It measured the difference at only 50 ms.



Any theories on what's going on here?

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sharknice
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Joined: 23 Dec 2013, 17:16
Location: Minnesota
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Re: Testing input lag via timer vs human benchmark

Post by sharknice » 22 Feb 2015, 21:32

dunebeetle wrote:I was testing a old Panasonic HDTV against a 120hz monitor I have with human benchmark
http://www.humanbenchmark.com/tests/reactiontime/

And I averaged about 111 ms faster on the 120hz monitor


But when I tested with timer here:
http://tft.vanity.dk/

It measured the difference at only 50 ms.



Any theories on what's going on here?

The tests themselves have input lag. So you can't really compare between different tests.

flood
Posts: 929
Joined: 21 Dec 2013, 01:25

Re: Testing input lag via timer vs human benchmark

Post by flood » 22 Feb 2015, 21:42

back when human benchmark was flash i got more or less the same result on it as i did on a custom program i made myself to do the same thing at >1000fps

anyway using timers is really unreliable for measuring input lag


also if you have aero on, 120hz has less vsync lag than 60hz

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