I resently added a 3rd monitor to my setup. Before that I was able to run the PMDG 737 with VC on 2 windows 1920x1080 with reasonably framerates on most major airports.

Now when I open a 3rd VC window on the 3rd monitor (1920x1080) framerates drops to 2-3 pfs.

I'm able to run some other AC, like the Level-D with 3 VC windows open, and FSX running relativly smooth..

 

I'm running FSX on an i7-2700K (@ 4,5), 2x8Gb Kingston HyperX Ram, Gigabyte HD 7970 3Gb (@1100), Win7 x64. Both OS drive and FSX drive is SSD's.

 

Anyone who can see the bottleneck causing this "problem"?

 

Is it the PMDG's on 3 windows that's too heavy on the CPU?

Or is it a GPU-problem, and if it is - is the solution a card with more Ram or "just" more power?

 

 

Now when I open a 3rd VC window on the 3rd monitor

 

3rd window?  You're running them as a single stretched screen with one window, yes? 

 

 

Now when I open a 3rd VC window

 

This is your problem right here. If you use Eyefinity to stretch your image across the three displays, your issues would be resolved. 

No, don't run them as single streched screen.. I did try to setup the eyefinity, cannot recall why I abandoned that. But maybe I should give it another shot..

 

But - If I were to run them as 3 single Windows - where do you see the bottleneck in my setup?

 

Right now I'm testing a Tripplehead 2 Go from a friend, but I'm not so impressed with the "fishbowl"-effect.

 

Thanx for your answers.

/Maxtrax
 

 

 

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From my experience, the bottleneck would be the windows themselves.  Each window makes an enormous drain. 

 

 

 

Right now I'm testing a Tripplehead 2 Go from a friend, but I'm not so impressed with the "fishbowl"-effect.

 

Do you have WideViewAspect=True in your fsx.cfg?  I've used a TH2Go for years up until 3 days ago (just replaced it with a 42" HDTV) and never had a fish bowl effect. 

 

Gregg

You best bet is to set WideViewAspect=True and stretch the screen across all 3 monitors. I have run a 3+1 setup for several years now and I will tell you that each window you add will bring your framerates down. Ill give you an example.

I have an i7-4770 at 4.3ghz, 16gb RAM, AMD 7950 running 5760x1080 with the haswell igp running the 4th 1920x1080 monitor and I still struggle with framerates at big airports. I have traffic at 40 clouds at 60mi and everything else max with bloom and lens flare off. At JFK I average about 17 fps. If I add another window that drops to 14 fps.

Thank you for the answers..

 

Yes, I did have WideViewAspect=True. And wasn't really satisfied with neither the resolution nor the fish bowl effect I had with 3 x 23".

 

I unplugged the TH2GO and did some more 'messing around' with eyefinity per your advise, and sure thing.. I just became a very happy PMDG-driver.

 

Thanx a lot.

/Maxtrax

you and I have a nearly identical system. I've been dying to try a 3 screen setup with Eyefinity on my 7970. I fly the JS 41 from PMDG. now that you're pretty happy , what areas are you flying into and what approximate frame rates are you expecting to see and what sort of settings are you using in FSX. I mean like what cloud density what autogen slider. things like that. what's your traffic set to and are you using some kind of scenery?

 

Thanks !