Performance with 780 Ti

[SharpeXB]

I upgraded to this card and am surprised DCS still taxes it beyond it's limit.

This is an fps test on "Blockade" from FC3, with all settings maxed.

This is a worst case test, in the air I will get a solid 60fps

No matter what the MSAA setting the stripes on those transports always flicker and look terrible, I don't notice any fps or quality difference between 4xmsaa and 16xmsaa or 8q. Setting AA to override through Nvidia CP changes nothing either.

The only Nvidia CP setting I have found to be beneficial is Adaptive VSynch, otherwise they are all at default.

Are there better CP setting to use?

Is more RAM the solution for the system described below?

[danilop]

Everything maxed out in DCS brings the fastest card to its knees, as you found out ...

 

Do a search on graphics settings ... it makes HUGE difference.

 

this thread for example:

 

http://forums.eagle.ru/showthread.php?t=107551

 

P.S.

8GB RAM is plenty for DCS

Edited February 9, 2014 by danilop

[Wolf Rider]

turn TSSAA (in game) OFF...

Edited February 9, 2014 by Wolf Rider

[Kuky]

To get rid of the flickering on textures you need to use Supersampling AA mode (at least that's what its called on AMD cards) through you video card driver settings. The shimmering is because if you use Multisampling or Adoptive Multisampling AA mode, the alpha channel (or whatever new layerer on textures they added - which was added to lot of textures past many updates) is not Anti-aliased, and that's what causes shimmering... problem is, Supersampling AA mode makes high performance hit.

[*Rage*]

^ thanks! Didnt know that..

[Mustang]

Supersampling AA is just the best, if i could find a way to run with it 24/7 with good FPS i'd be in heaven :)

[danilop]

 

I'm using these control panel settings on GTX770 (bold). Smooth gameplay, solid FPS.

[*Rage*]

I would love to see a comparison between a 780ti and 290 in just DCS....

[Mainstay]

 

I'm using these control panel settings on GTX770 (bold). Smooth gameplay, solid FPS.

 

What are your in game settings with this? can yo make a screenshot of that swell?

[danilop]

 

Mirrors OFF. And I have this tweak in the graphics.lua

 

High = 
{
...
structures = {20, 10000};
...
}

 

Lowest FPS about 30 on busy airports. Much higher in the air. System spec in the sig.

[Mainstay]

 

Mirrors OFF. And I have this tweak in the graphics.lua

 

High = 
{
...
structures = {20, 10000};
...
}

 

Lowest FPS about 30 on busy airports. Much higher in the air. System spec in the sig.

 

thx

[danilop]

 

OP got 24 FPS on 780 ti in this scene. I've got 40 on GTX770.

 

Careful tweaking is nessesary for optimal performance in DCS

Edited February 9, 2014 by danilop

[*Rage*]

Supersampling AA is just the best, if i could find a way to run with it 24/7 with good FPS i'd be in heaven :)

 

You weren't kidding...dropped my fps by almost half!

[Shaman]

All of you, restore your default driver settings and defaults to profiles in NVIDIA panels. Get NVIDIA Inspector now to correctly enforce graphics settings like AA, and never fiddle with graphics settings through NVIDIA driver control panels again.

 

http://www.guru3d.com/files_details/nvidia_inspector_download.html

[SharpeXB]

If I understand correctly, the bottleneck for a high-end GPU in DCS is your CPU. Even running 2x Titans the objects take up your CPU and since the sim isn't optimized for multi-core you'll take a hit.

Even that scene posted above is playable though. The low FPS is only present for that view direction. Once airborne is goes up to 60.

The Adaptive V Synch in Nvidia CP makes those low rates smooth enough that they're not bothersome.

 

Applying danilop's CP settings (thanks! it looks much better) and the attached graphic settings and then running a more realistic test for average frame rate by constantly looking around as in real gameplay results in an average FPS of 48

Increasing visib range to high drops this to 40, so med is preferable to me.

Setting AA to 8q or 16q has no effect on FPS

Edited February 11, 2014 by SharpeXB

[Cobra847]

Supersampling renders the scene at a higher resolution and consequently downsamples the output. Hence the massive performance hit.

[SharpeXB]

A good deal of experimenting with various benchmark missions gets me to the following setting.

AA beyond 8xQ I can't make out the difference on my display. The test is to watch a light pole at the base for flickering, at this setting it appears as a solid line.

The most difficult scenario to run is a mission from the Shore Campaign which must involve many objects because I can have my frame rate drop to 7. This was greatly improved to 30 by changing TSAA in NCP to multisampling rather than 8x supersample and in-game AA to 8xQ. The first mission in GH Campaign has a fence for you to look at an even that setting is a great improvement.

Visibility range can be compromised without a great deal to notice, it affects textures on the far mountains but not much else that's noticeable and it's preferable to me to have things close up drawn better.

Those benchmarks are only extremes, most mission will run 60fps in the air easily.

 

EDIT: I think these settings caused DCS to crash. When I switched back to the defaults from NCP my problems stopped

Edited September 6, 2014 by SharpeXB