SLI is coming to P3Dv2 in a couple of weeks :)

[G-YMML1 582]

I doubt that Lockheed Martin or Nvidia would bother announcing SLI compatibility for P3D unless it provides at least some benefits.

 

Wish it were true :-) 

[ErichB 3,640]

Will the SLi update only work on P3DV2.5 and subsequent versions?

 

I'm still running on a stable 2.4 .

[Kuragiman 227]

@Rob

 

Titan X in SLI ....!?

 

I am really curious how that turns out ...

( have one myself )

 

I watched Linoel Tech TV on YouTube do a benchmark test of 4 Titan X cards SLI'd... Like $4000 worth of video card.   It was insanity but epic to watch.  No one would really run that setup in the practical world but seeing it in a test environment on 4k monitor eating every game and benchmark's lunch was awesome.

[GSalden 4,656]

My personal experience is that 1 Titan X card outperforms 2 Titan 1e generation cards in SLI with the current advised SLI settings.

 

On my setup with 3 HD TV's in 5920x1080 resolution the only thing that holds back the cards performance is SGSS icw multiple cloud layers...

 

Perhaps when upgrading a 760 to a 760 SLI it will show a very noticeable difference but imho I think that a Titan X SLI config will not give a lot of fps extra compared to a 1 Titan X.

Unless 3x 4K monitor in NV Surround with lost of autogen.. 

 

In a few weeks Rob will do some tests and we'll know it for sure..   

[Christopher Low 5,352]

I would have thought that the CPU would end up being the bottleneck once you get to a certain point. How far can you go in P3D with GPU power before it ends up twiddling its silicon thumbs waiting for the CPU to catch up?

[alulekk 3]

Well, I'm in for another GPU anyways after I saw how much better and consistent the frames were on Project Cars also.

[SirStiggie 63]

Best news I've heard all year. My two 980's are ready and waiting........

[romainchair 0]

I would have thought that the CPU would end up being the bottleneck once you get to a certain point.

 

 

[Guest]

 

 

if P3D wasn't originally designed for SLI, what benefits SLI would bring to the sim?

 

LM have been working with nVidia to make SLI work ... it's a back and forth dialog.  Beau has made adjustments to code in order to meet nVidia's needs to make SLi a reality at the driver level.  This dialog has been going on for a long time, but we should finally see the results soon.

 

I would expect benefits to both single GPU and multi GPU system, just a question of how much of a benefit.  As we know from past releases from nVidia, they've achieved anywhere from 7% to 70% performance improvements in other apps/games (single GPU).  At a driver level there are optimization that can be made to "fit" how a specific application is working with DX11 and what hardware accelerated features it's using (i.e. Tessellation, Shaders, etc. etc.) and how it's using them.

 

Warning: race car analogy ... you can add a Turbo, cams, headers, big fuel injectors, change compression, etc. etc. ... but if you do NOTHING with the ECU, you'll be down about 50% of it's power potential.  Adjust and tune the ECU and you can increase engine output by 50% safely.  Think of the nVidia drivers as the ECU.

 

Cheers, Rob.

[SirStiggie 63]

 

Warning: race car analogy ... you can add a Turbo, cams, headers, big fuel injectors, change compression, etc. etc. ... but if you do NOTHING with the ECU, you'll be down about 50% of it's power potential.  Adjust and tune the ECU and you can increase engine output by 50% safely.  Think of the nVidia drivers as the ECU.

 

Cheers, Rob.

 

More like your engine will blow or melt from running too lean and or too much ignition timing but I'm with you  B)

[Kattz 132]

Been on the road, but can't wait to try 2.5 with i7-5930X and quad SLI.  Thanks, LM team!

[alulekk 3]

Been on the road, but can't wait to try 2.5 with i7-5930X and quad SLI.  Thanks, LM team!

 

Wow - And I can't wait to hear about the results from that either! 

[AlphaInfinity 13]

There is a performance benefit. I ran two 680's on my older rig and saw a nice jump.  I will be ordering a second GTX980 today now that this is official!

[Clutch Cargo 384]

Guess the constant nagging to Nvidia finally paid off. A tip-of-the-wing to those simmers who bombarded requests for a driver.

[Kattz 132]

Don't get too excited.  Quad EVGA GTX760OC's.  Not 980's!