Looking for GTX 780ti SLI information

qkndirty

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Mar 10, 2014
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All,
I'm currently running Google Earth pro in situations that contain large volumes of models. The workstation specs are below
2 XEON E5-2687W 8C LGA2011
SUPERMICRO-X9DAI 743TQ-1200B-SQ
128GB of KINGSTON --16GB 1333MHZ DDR3 DIMM ECC DR
GEFORCE GTX 580
4 x WESTERN DIGITAL-2TB RE4 GP SATA INTELLIP

When running through the site (with models animated with time) we are getting FPS of under 10. I swapped the card for a GTX780ti superclocked factory, and now am getting FPS of between 24 and 30. The FPS are not fast enough to export video without stuttering.
With the 780ti below are the Google Earth Calls
12FPS (will all models in view)
15,543 Draw Calls
680,000 Triangles
905,000 Vertices
419 Textures
Using 800 VRAM



So, on the my questions.
The motherboard on this machine will not accept SLI as there is not enough room on the card/around the card, so SLI is not an option. Therefore I am planning on building a workstation that would handle the above loads with high FPS. Below are the build specs I am considering
I7-4930k
Cooler master Glacer 240l
Asus Rampage IV Extreme EATX LGA2011
Corsair Vengeance Pro 16GB DDR3-2400
Samsung 840 EVO 500GB
2x WD Caviar Black
2x GTX780ti
NZXT Phantom 630 Full tower case
Cooler Master Silent Pro Gold 1000w
ASUS BW blueray dvd/cd writer

Should I expect higher FPS with this build compared to the workstation? And if so...and estimates as to my increased FPS. I don't want to drop the coin on this if it will not perform significantly better.
Anybody with any experience with this type of endeavor. Any comments as to what components may work better that with my goals in mind? Thank you for all your help.
Chris
 


I have a license for Google Earth pro, the outputs are for internal purposes only. VRAM used is only around 800MB, no double precision used in GE, so the workstation cards are not needed.

 


Thank you for the comparison, what card are you running? If you enable all the 3d buildings in downtown Los Angeles, and fly around, what kind of FPS are you getting. The large volume of models in downtown LA are pretty taxing on the GPU.
I think GE caps at the monitor refresh rate, as 60 is the max we get with all models turned off.
I don't think GE allows Vsync, as it is greyed out when in the GE application settings ( NVidia control panel)
My laptop has two 460m's in sli, but the cards are so outdated/weak I see no difference in SLI or none SLI. The stuttering brings tears to my eyes it's so bad. As soon as I start tweaking the AA settings, FPS drops to lower than 5. Floating transmission lines tax the AA settings, so I would like to go 8x or above if possible to keep things sharp and crisp.

 


If I enable the SLi indicators they do not show up when GE is running and the secondary card shows minimal activity, less than 10%.
 


I'm running SLi'd 660Ti's and there is no difference in GE's performance with SLi enabled or disabled.
 


I just checked out Shadowplay....pretty cool setup, free too! I can't even get the system to get up over 30fps, so recording right now is not an option. Once I can get the frames up, GE offers quite a few export options, stills, tagged in order (.jpg format), mp4, avi, etc. Recording from tour offers higher resolution video and doesn't seem to bog the system down as much.

 


Are you referring to the SLI indicator in the top left portion of the screen? On my MX18 in Google Earth the SLI indicators shows up SLI 8x AA

 


With a single card I get 60fps max and with SLi enabled I get 60fps max, no difference.
 
You're trying to use a gaming card for professional uses. A workstation card should perform better in that sense. The drivers for workstation cards tend to allow more to be processed at the same time, and for much longer, but not as fast. Think of it as a semi-truck, compared to a Ferrari (gaming card). You need more bandwidth over speed.

I don't know a ton about it, but definitely look into workstation cards.

Edit: Just saw your post about 800mb. I'll change this when I get to it to something more helpful.

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Okay, so there are some people that run GE using SLI, however I can't estimate the FPS difference. There is an article though that will help you speed up GE to see if your GPU really is the issue.
http://www.gearthblog.com/blog/archives/2011/09/how_to_speed_up_google_earth.html

The main fix would be to try running it in different modes; DirectX and OpenGL (and have the most updated ones too).

What is your GPU load when using GE?
 


qkndirty is using a laptop I'm on a proper PC. 😉
 


I have to restart the system to apply the non SLI settings, so comparing the same frame is pretty tough. I went back to factory global settings for GE and ran a tour in both SLI mode and non SLI mode.
SLI mode 19FPS
Non SLI mode 17FPS
Is that even an appreciable difference?

 


No, if you ran the same tour five times you would get about the same variance if you were only running in none SLi mode I reckon.
 

15-30FPS, I dream about hitting framerate caps in GE

 


I'm getting about 43% out of GPU 1
and 19% out of GPU 2 in GE

 


Well, I guess that puts that one to rest, thank you all for looking into this.
Does anyone have any idea if a single Titan Black might be a better fit than the single 780ti in using google earth?

 


Being a dual GPU card it won't be any better than a single 7970 in GE.
 


Could you check and see if you get better FPS with alternating frames, and are both GPU's running at the same MHz? I get better FPS with alternating frames, but GPU #2 is running between 200 and 800MHz whereas GPU #1 is running at the full 800MHz. Something seems odd.