Input Lag following GPU upgrade - Thoughts

[Jay Deah]

Ive been helping a guy over email/text upgrade his old i7 Sandy Bridge pre-built.

 

He was running a 650Ti Boost and other than the obvious FPS issues his games were running as expected.

 

He just picked up a 670, reinstalled the drivers (including a second attempt with DDU) and as expected his FPS is far far better.

 

 

...but...

 

He're reporting what sounds like input lag. its as if every action has a slight delay before being on screen.

 

now i could understand if you had a worse GPU you could get this feeling, as ive experienced it myself when playcing on low powered machines, but i cant understand how you'd go from fine -> laggy with a more powerfull GPU?1!

 

anyone got any ideas?

 

his next step is to install a new SSD and reinstall windows, hopefully that'll sort it... but has anyone else got any thoughts?

[GTinsider]

The only thing that I could ever come to imagine something like this from, Is depending on how bad of input lag, They may want to check and see what refresh rate the drivers have his monitor set at. Too low, input lag can become a thing. Then, Sometimes, depending on the type of connection between the monitor and the graphics card, This can happen. Also, The card could be bad? But you stated that the FPS is normal.

[Jay Deah]

Checked, monitor is @ 60Hz tried with DVI and HDMI.

 

Vsync off. FPS >60fps

 

tried (amongst others) fortnite and CS:GO

 

not sure if it matters but the second PCI-E connector is running off of a 2xSATA->6pin adapter. I can't see how power issues (if there were any) would manifest in this way so 99% sure that's irrelevant.

 

[Jay Deah]

Just to conclude his thread for anyone that digs it out of the archives...

 

following a fresh install of windows on SSD everything is running perfectly.

 

phew

[Jon Jon]

11 hours ago, Jay Deah said:

Just to conclude his thread for anyone that digs it out of the archives...

 

following a fresh install of windows on SSD everything is running perfectly.

 

phew

Windows gets weird sometimes. I am not surprised. I've had similar issues with almost every major Windows 10 patch, lol. A total Windows refresh fixes it every time. Silly Windows!