Games running much better in small window

[extrememachine]

So i thought i solved the issue by RMA ing my 3090 only to realise I have the same issue.
Basically all games run as they should (frames wise) when in small windowed instead of fullscreen.
I really dont know the cause of this.
I have tried new drivers, clean boot , disabling some apps.I even tried chaning tv settings and updating them.
Does anyone out there have any clue to what this issue really is??

 

[Zefan]

What's the exact problem? You say games run as expected when in a small window, and that this is much better, but what exactly is the issue in fullscreen? Is fps capped? Have you run some performance overlays such as what's built in to msi afterburner to see what's being pushed hard/what's slacking off during fullscreen vs windowed? Are you running some variable refresh rate either within the game settings or within geforce experience that would be only coming on when when it's detecting games in full screen?

 

[extrememachine]

I have tried capping fps and unlimited. I have toggled with the variable refresh rate from display settings still same.
As for msi all i have done is monitored the gpu usage and temps. about 85-90 % and acceptable temps in full screen and 60% ish in windowed and that is which is running much better in frames for some reason.

 

[Rroff]

A small window will be rendering much lower resolution so performance will be much better than fullscreen at native resolution.

 

[extrememachine]

A small window will be rendering much lower resolution so performance will be much better than fullscreen at native resolution.

yes its res is 1600x 900 ; However initially it was running at that performance at 4k.I also seen other people and it was meant to be that way.
For example yakuza like a dragon was running at 110-120fps at 4k max now i am getting around 70.
Definate issue here, Im hoping its not another RMA.

 

[Ch3m1c4L]

Turned on Ray tracing, dlss off/different setting, or dsr factors in the driver settings?
Does 3d mark give expected results? If so, then it's not a faulty card.
Full system specs?
Can you give a few games and fps data from MSI afterburner at 4k fullscreen, 4k windowed, and then your small window and full screen at that resolution. State settings related to dsr/dlss/Ray tracing/render resolution or scale.

 

[pp111]

Most games have a borderless window setting. Have you tried that?
I'm wondering if it is some setting in the NVIDIA control panel.
It really doesn't sound like an RMA problem, rather one of configuration.
I assume your 4K Tv is not 120Hz? In that case is it possible that NVIDIA is just now limiting the FPS to the TV refresh rate? So an NVIDIA control panel configuration thing?

 

[Nicholas Eagle]

Have you made sure your TV is set to Game mode or PC? those reduce all the processing that is applied to the input.

Second thing id check is that you dont have some super resolution applied, called DSR on Nvidia.

 

[heatonpkmassive]

Try disabling fullscreen optimisations in Windows.

 

[heartburnron]

The fact that you have the same behaviour with a second card would completely rule out that it's a fault with the GPU for me. Sounds like it's your TV that isn't playing nicely and that the answer lies within the configuration settings somewhere.

 

[Parsley]

Get GPU-Z, check what your Bus Interface is when in game. I had to reseat my card in the riser as my fps tanked overnight. (I'd say I lost 30-40% performance). Not sure why as I didn't touch the machine, but stranger things have happened.

It was running as PCIE Gen 2 x8 rather than Gen 3 x16. So the card was fine, it just didn't have access to the bandwidth to maintain the higher framerates. It's quite odd behaviour as in less taxing games the card could still push 100% usage only to struggle to get over 60 in something more demanding.

You should have Gen 3 with your processor I think.