Monitor Response And Input Rate

[RandyDomer]

Quick question my monitor is advertised as 1ms mprt but on blur busters it shows 6.4mprt. How good is 6.4ms mprt? and if anyone can help me find the input rate i would appreciate it i have the OptixG24C by MSI.

[Brooksie359]

It's a VA panel so I very much doubt it actually has 1 ms gtg. I think most VA panels say they have 1 ms response time when they really don't and suffer from minor ghosting. 

[Bombastinator]

To expand on what I think @Brooksie359 said,   In short you fell for marketing garbage.  Advertised response times are bs.  It’s an industry wide problem.

Edited December 6, 2019 by Bombastinator
Added reference

[RandyDomer]

Damn that really sucks i dont know why companys cant just be honest. But could you guys help me figure out how good 6.4ms mprt is? and if possible help me find the input lag?

 

[Bombastinator]

1 hour ago, RandyDomer said:

Damn that really sucks i dont know why companys cant just be honest. But could you guys help me figure out how good 6.4ms mprt is? and if possible help me find the input lag?

 

Because while it isn’t technically illegal it de facto is.

[Mark Kaine]

3 hours ago, RandyDomer said:

Damn that really sucks i dont know why companys cant just be honest. But could you guys help me figure out how good 6.4ms mprt is? and if possible help me find the input lag?

 

https://displaylag.com

 

 

My goto site for everything input lag. 

 

 

[SolarNova]

14 hours ago, RandyDomer said:

Quick question my monitor is advertised as 1ms mprt but on blur busters it shows 6.4mprt. How good is 6.4ms mprt? and if anyone can help me find the input rate i would appreciate it i have the OptixG24C by MSI.

Manufacturer response times are VERY VERY misleading.

 

They cherry pick a SINGLE pixel transition, use high levels of overdrive, and do not include overshoot as part of the measurement, which usually means an 80% reading.

As a result they are 'technically' not lying when they advertise the monitor can achieve 1ms response time. But in real world usage and tests the response time averages and maximums will be much much higher. You could grab 10 different monitors all with an advertised 1ms response time, and they will all be different in real world tests.

 

For VA panels the most important response time u need to check is the 0-20% transition (dark scenes). It is the Achilles heel of VA panels , they are usually very slow with this transition. The best i have seen a VA manage in this transition is an 80% reading of 5.9ms and a 100% reading of 22.9ms., which very good for a VA.

 

In comparison to IPS and TN,

IPS can achieve ~3.5ms 80% readings and ~14ms 100% readings for the 0-20% transition

TN can achieve ~2ms 80% reading and ~4ms 100% readings for the 0-20% transition.

 

Now the above is Pixel response time. (eg GTG)

 

MPRT is Moving Pixel response time.  Its a rather convoluted measurement of frame persistence and backlight strobing. Without any back strobing/ Black frame insertion, the fastest measurement a MPRT can result in is the frame time of the monitor. So 144hz would be 6.94ms.

Just like with the traditional GTG test which is just a normal pixel response time test, with MPRT they can also cherry pick a transition as explained above.

They also fail to mention sometimes that in certain cases BFI cannot be used in conjunction with Gsync/freesync , or even user defined overdrive.

 

Input latency (input lag) isnt something manufactures specify. However the vast majority of modern displays aimed at gaming will have sub 10ms. Thorough competent reviewers test for this.

 

TLDR: ignore MPRT and GTG response time specs. Find tested reviews for real world results of pixle response time, and input lag.