Hi Folks,

I'm having huge FPS issues. By my understanding from the interwebs, and by Fallout 4's autodetect, I should be able to have everything on ultra and still get a'ok FPS. However I'm barely hitting high 50s outside sometimes and having mid 40s FPS in indoor locations with huge FPS variance and stutter. Any help would be greatly appreciated. I've updated to the latest nvidia drivers. Specs below. It's playable, but it just seems like I should be getting more with my hardware. Not sure if it's a software or hardware issuem

Thanks!

Specs:

Asus IV Rampage Extreme

32GB 2133mhz Gskill Ram

EVGA 1300 watt PSU

2 PNY GTX 970s

1 EVGA GTX 680 (physx calculations)

i7 3930K

Asus Xonsar Essence STX soundcard

27" Dell Ultrasharp running at 1080p

Have you tried without the physx dedicated GPU ???

That game is pretty new, so some things may not work a intended.

Two 970s is good, but I wouldn't expect 60 fps on ultra, unless your resolution is low like 720p or something. What's it like on high?

First try disabling SLI for this game and see how it runs. I know, sounds weird, but most seem to get better performance without it.

There is a render ini tweak available, don't remember where I saw it and the thread is now buried, but that seemed to help one poster with SLI issues and the game. All I can remember is the number was set to 2. Don't remember where this was set either.

Was it from this topic? There is a boatload of PC/GPU/.ini tweaks there.

http://www.gamesas.com/topic/1543988-a-data-vault-of-tweaks-and-fixes-for-the-pc-version/

You will be suprised if you see the below chart.

http://media.gamersnexus.net/images/media/2015/game-bench/fallout-4-gpu-bench-1080-ultra.png

The GTX 970 kicks as...on Fallout 4. !!!

Yep, in Section 7 of that thread

You should be able to get 60fps with just one 970.

I get constant 60+ fps with one 970, like others have said try disabling ski and getting shot of the dedicated physics card.

Thanks for the tips guys. I will give it a shot when I get home. I think I had tried disabling the SLI in the prologue, but it dropped it about 10 FPS. Everything I've read/seen, says I should have no issues, but I'm just not getting the performance I expect. I've already made a bunch of .ini tweaks. Maybe what I'll do is start fresh.

• Verify the cache integrity / reset the ini files
• Disable the SLI
• Disable the Physx GPU
• Seeeeee what happens
• Add in some ini tweaks if I need to

• Disable the SLI
• Disable the Physx GPU

I would just remove the dedicated PhysX, and the second GPU in SLI as well.

That's the proper way, to do it...

If you get again low frame-rates on that RIG, something else is the culprit. You should get 60+ fps on ultra with that compo. (i7 3930K - GTX 970)

You might also try setting Godrays from Ultra to High. There is NO difference - except a 15 fps ding to your framerate.

Pretty sure I tried turning them off and got almost nothing for it, which is odd. But apparently the prologue is more f'ed up than the rest of the game. Haven't tried since I got out into the wasteland.

how do i Disable the physx,

you mean turn it away from GPU to CPU?

That did it. Thanks for the help! But why oh why must SLI be the red-headed step child T_T. Makes me sad.

SLI Rendering Mode: Force Alternate Frame Rendering 2

....is the SLI setting you want.