How much does refresh rate affect lag times?

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deama
Posts: 370
Joined: 07 Aug 2019, 12:00

How much does refresh rate affect lag times?

Post by deama » 13 Jun 2020, 14:13

So basically my question is concerning the lag test, like the one done here:
https://www.youtube.com/watch?v=_Po6Zqjf-Wo

That monitor runs at 60hz, and at the "gamer mode" it lowers lag time down to 21ms.
My question is, if that monitor was running at 120hz instead, would the lag time be reduced further? Down to around 10.5ms?

Kulagin
Posts: 37
Joined: 27 Feb 2016, 08:17

Re: How much does refresh rate affect lag times?

Post by Kulagin » 14 Jun 2020, 05:58

deama wrote:
13 Jun 2020, 14:13
So basically my question is concerning the lag test, like the one done here:
https://www.youtube.com/watch?v=_Po6Zqjf-Wo

That monitor runs at 60hz, and at the "gamer mode" it lowers lag time down to 21ms.
My question is, if that monitor was running at 120hz instead, would the lag time be reduced further? Down to around 10.5ms?
If it was 21ms, then other than lag caused by vertical refresh rate, it was 21 - 1000 / 60 = 21 - 16.67 = 4.33ms.

So at 120 Hz that monitor would be around 4.33 + 1000 / 120 = 4.33 + 8.33 = 12.66ms.

Yes, your monitor is the biggest input lag bottleneck in your system. So if you can get higher refresh rate monitor, just get it. Get 360 Hz if you can.

deama
Posts: 370
Joined: 07 Aug 2019, 12:00

Re: How much does refresh rate affect lag times?

Post by deama » 14 Jun 2020, 11:15

Ah thanks.

I actually am thinking about getting an OLED monitor to try, and when I saw the input lag test I was concerned about that, but maybe I can find a 120hz at least OLED, which would be fine for me, especially if I could get it to around 5ms.

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speancer
Posts: 241
Joined: 03 May 2020, 04:26
Location: EU

Re: How much does refresh rate affect lag times?

Post by speancer » 16 Jun 2020, 02:47

Kulagin wrote:
14 Jun 2020, 05:58
Yes, your monitor is the biggest input lag bottleneck in your system. So if you can get higher refresh rate monitor, just get it. Get 360 Hz if you can.
360 Hz? I don't think there is any monitor with such refresh rate available on the market yet. I'd surely like to test it!
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deama
Posts: 370
Joined: 07 Aug 2019, 12:00

Re: How much does refresh rate affect lag times?

Post by deama » 16 Jun 2020, 21:26

Kulagin wrote:
14 Jun 2020, 05:58
deama wrote:
13 Jun 2020, 14:13
So basically my question is concerning the lag test, like the one done here:
https://www.youtube.com/watch?v=_Po6Zqjf-Wo

That monitor runs at 60hz, and at the "gamer mode" it lowers lag time down to 21ms.
My question is, if that monitor was running at 120hz instead, would the lag time be reduced further? Down to around 10.5ms?
If it was 21ms, then other than lag caused by vertical refresh rate, it was 21 - 1000 / 60 = 21 - 16.67 = 4.33ms.

So at 120 Hz that monitor would be around 4.33 + 1000 / 120 = 4.33 + 8.33 = 12.66ms.

Yes, your monitor is the biggest input lag bottleneck in your system. So if you can get higher refresh rate monitor, just get it. Get 360 Hz if you can.
Oh I forgot to ask, what if the monitor above measured 13ms at 60hz?
Does that mean it would be 13-1000 / 60 = 13-16.67 = -3.67 ?
So -3.67 - 1000 / 120 = -3.67 + 8.33 = 4.66ms?

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