Mafia SLI not working!

Maverickman · 08-29-10, 04:06 PM

My system will not utilize SLI with Mafia II. When I enable SLI, I only get 2 fps higher than with a single GPU. I should think that enabling SLI would result in a much higher gain in fps, especially with a GTX 470! I've downloaded the latest PhysX software and NVIDIA drivers. I know that SLI is working on my system because I've seen much higher fps in my other games. Anyone having a similar problem with SLI and Mafia II?

JasonPC · 08-29-10, 05:52 PM

Have you tried the EVGA SLI enhancement patch?

Maverickman · 08-29-10, 09:28 PM

Yes, no luck

JasonPC · 08-29-10, 10:33 PM

Is Physx on or off?

Maverickman · 08-29-10, 11:14 PM

PhysX is on and all settings are maxed. I'm running the game at 1920X1080. I get about 34 fps in the benchmark. I think I should be getting about twice that. With SLI disabled I get 32 fps.

JasonPC · 08-30-10, 12:39 AM

This is normal performance. If you want to improve it you're going to have to delete some of the cloth physx files. The cloth simulations are pretty poorly optimized, I think they run off the CPU no matter what.

**rap1d^** · 08-30-10, 12:51 AM

Disable SLi and dedicate one card to physx, worked for me

Skinner · 08-30-10, 03:06 AM

Quote:

Originally Posted by rap1d^

Disable SLi and dedicate one card to physx, worked for me

Yep, this is the best setting for this game where physx have a big influence on the perf. But in other games, like Stalker COP and Metro2033 for example, the best overall result is archived by setting it on auto/non dedicated

ryoohki · 08-30-10, 05:31 PM

Vote for dedicated. I've runned a pass with Fraps with One and 2nd dedicated go AVG 49FPS (fun time in the city + some mission). I've then run a pass in SLI, even tought the game is laggy and tear like madness i got 70FPS on the same run, same mission, seems like SLI is working but the drivers don't like it or something..

mrsudz · 09-09-10, 09:35 AM

Quote:

Originally Posted by JasonPC

This is normal performance. If you want to improve it you're going to have to delete some of the cloth physx files. The cloth simulations are pretty poorly optimized, I think they run off the CPU no matter what.

This is what I did and my frame rate doubled to the high 80's

I have 480's in SLI

But with the Physx on max it crippled my machine. I even OC'ed by I5 to 3.8 GHZ.

08-29-10, 04:06 PM	#1
Maverickman Registered User Join Date: Jul 2003 Location: South Florida Posts: 524	Mafia SLI not working! My system will not utilize SLI with Mafia II. When I enable SLI, I only get 2 fps higher than with a single GPU. I should think that enabling SLI would result in a much higher gain in fps, especially with a GTX 470! I've downloaded the latest PhysX software and NVIDIA drivers. I know that SLI is working on my system because I've seen much higher fps in my other games. Anyone having a similar problem with SLI and Mafia II? __________________ Core i7 3770 @ 3.4GHz EVGA GeForce GTX 660 Ti Superclocked 1TB Seagate HDD 7200 RPM 32MB Cache 16X DVD-RW drive Gateway 24-inch 108p monitor Gateway speakers

08-29-10, 05:52 PM	#2
JasonPC Registered User Join Date: Feb 2007 Posts: 2,103	Re: Mafia SLI not working! Have you tried the EVGA SLI enhancement patch?

08-29-10, 09:28 PM	#3
Maverickman Registered User Join Date: Jul 2003 Location: South Florida Posts: 524	Re: Mafia SLI not working! Yes, no luck __________________ Core i7 3770 @ 3.4GHz EVGA GeForce GTX 660 Ti Superclocked 1TB Seagate HDD 7200 RPM 32MB Cache 16X DVD-RW drive Gateway 24-inch 108p monitor Gateway speakers

08-29-10, 10:33 PM	#4
JasonPC Registered User Join Date: Feb 2007 Posts: 2,103	Re: Mafia SLI not working! Is Physx on or off?

08-29-10, 11:14 PM	#5
Maverickman Registered User Join Date: Jul 2003 Location: South Florida Posts: 524	Re: Mafia SLI not working! PhysX is on and all settings are maxed. I'm running the game at 1920X1080. I get about 34 fps in the benchmark. I think I should be getting about twice that. With SLI disabled I get 32 fps. __________________ Core i7 3770 @ 3.4GHz EVGA GeForce GTX 660 Ti Superclocked 1TB Seagate HDD 7200 RPM 32MB Cache 16X DVD-RW drive Gateway 24-inch 108p monitor Gateway speakers

08-30-10, 12:39 AM	#6
JasonPC Registered User Join Date: Feb 2007 Posts: 2,103	Re: Mafia SLI not working! This is normal performance. If you want to improve it you're going to have to delete some of the cloth physx files. The cloth simulations are pretty poorly optimized, I think they run off the CPU no matter what.

08-30-10, 12:51 AM	#7
rap1d^ Join Date: Mar 2007 Location: UK Posts: 110	Re: Mafia SLI not working! Disable SLi and dedicate one card to physx, worked for me __________________ \| Intel Core i7 970 @ 4.0Ghz \| Asus P6T Deluxe \| 3x2Gb Corsair DDR3 PC-12800 \| 2 x Palit GTX480 \| Creative XFI \| OCZ Vertex 3 \| BenQ FP241w \| Windows 7 64 \|

08-30-10, 05:31 PM	#9
ryoohki Registered User Join Date: Apr 2004 Posts: 72	Re: Mafia SLI not working! Vote for dedicated. I've runned a pass with Fraps with One and 2nd dedicated go AVG 49FPS (fun time in the city + some mission). I've then run a pass in SLI, even tought the game is laggy and tear like madness i got 70FPS on the same run, same mission, seems like SLI is working but the drivers don't like it or something..