Does 2nd display connected to gpu affect fps in games?

[Michaeljcox24]

Simple question

I'm running a 690, and I have a monitor connected to one of the outputs, and just recently, have purchased a 42" telly to watch films on upstairs while the missis has the soaps on downstairs.

The aim was to have dual outputs from the gpu so I can stick a DVD in the pc and watch a film.

Will having the 2nd display connected, lower FPS in games? I'm sure there seems to be bit of a difference even when the telly is on standby. Benches suggest otherwise, (same fps in valley) but playing Black Flag, there definitely seems to be more jittering.

 

[Scania]

Got a second monitor on my GTX 480 which I use for iPlayer, watching films and battle log when playing bf3/4 tbh, I can't say I've noticed any difference at all, given I have an old rig that just about cuts it with BF4, in sure I would have noticed any performance hit.

 

[Michaeljcox24]

Perhaps its just me imagining it then. Oh well...

 

[jh30uk]

Is this Nvidia?

In NVCP what do you have set here :

 

[LegendaryDread]

Try disabling desktop composition. Can do it via the .exe or the game's shortcut.

Spoiler

While an application going into True Fullscreen is (in theory) supposed to prevent Windows using VRAM, I find it's more reliable to force this on, particularly when using multiple displays.

 

[Michaeljcox24]

I have it set to single display performance mode for black flag.

 

[jh30uk]

I would think then it will give 99.9% of grunt to that display with that setting.