GTX 480 SLI performance

[rubenhak]

Hi,
I recently got my second gtx 480. So running in two way sli configuration. Using evga x58 sli mono, intel i7-930, mushkin redline ddr3 triple channel memory x2 (12gb total) and corsair hxt-1000 psu.

I'm not very happy with the SLI performance. In Hitman Absolution it does not produce much increase. In Crysis 2 it is running below 15fps when lots of objects/aliens are visible, getting to 25fps when not many objects are visible. This was with Geometric Details set to ultra. Other settings did not make any difference. Changing Geometric Details to low increases the FPS to about 25-30 in the same scene.

Tried with running the physics on GPU and then on the CPU but this does not improve the performance.

Why is the performance so poor? Ow can't diagnose this? Which settings would produce the best quality and performance in my case?

P.S. I'd prefer to ru under 2560x1600 resolution if possible. 1920x1200 is still acceptable.

Thank you,
Ruben

 

[rubenhak]

Yes, I'm getting those numbers but with an SLI setup not a single GPU.

To make the settings effective in the in nvidia inspector what should I set in the nvidia control panel so that those settings in inspector are in use? Right now all of the settings in nvidia control panel are set to "Use global settings"

 

[rubenhak]

Yes, I'm getting those numbers but with an SLI setup not a single GPU.

To make the settings effective in the in nvidia inspector what should I set in the nvidia control panel so that those settings in inspector are in use? Right now all of the settings in nvidia control panel are set to "Use global settings"

 

[rubenhak]

Yes, I'm getting those numbers but with an SLI setup not a single GPU.

To make the settings effective in the in nvidia inspector what should I set in the nvidia control panel so that those settings in inspector are in use? Right now all of the settings in nvidia control panel are set to "Use global settings"

 

[Guest]

Yes, I'm getting those numbers but with an SLI setup not a single GPU.

not far off:

1) SLI Rendering Mode=NVidia Recommended. Second GPU not used. 1920x1200 produces 23-32 fps.
3) SLI Rendering Mode=Force alternate frame rendering 2. Both GPUs utilizing 100%. fps raised to 42-52 fps.

the 1900x1200 looks 36 fps plus add in that a bit better i7 was used . .but 6 fps (20%) is rather substanial. and not all games wil scale ti 100% increase with a SLI set up; for some a 60% increase is not bad.

To make the settings effective in the in nvidia inspector what should I set in the nvidia control panel so that those settings in inspector are in use? Right now all of the settings in nvidia control panel are set to "Use global settings"

if you are configuring the global settings or base settings that will throw off the rest of the games. the hitman absolution so any changes affects that game only.

 

[rubenhak]

Yes, I'm getting those numbers but with an SLI setup not a single GPU.

not far off:

1) SLI Rendering Mode=NVidia Recommended. Second GPU not used. 1920x1200 produces 23-32 fps.
3) SLI Rendering Mode=Force alternate frame rendering 2. Both GPUs utilizing 100%. fps raised to 42-52 fps.

the 1900x1200 looks 36 fps plus add in that a bit better i7 was used . .but 6 fps (20%) is rather substanial. and not all games wil scale ti 100% increase with a SLI set up; for some a 60% increase is not bad.

To make the settings effective in the in nvidia inspector what should I set in the nvidia control panel so that those settings in inspector are in use? Right now all of the settings in nvidia control panel are set to "Use global settings"

if you are configuring the global settings or base settings that will throw off the rest of the games. the hitman absolution so any changes affects that game only.

Actually my question was if the settings changed in nvidia inspector (at least some of them) are supposed to be visible in nvidia control panel and vice versa?

I just tried Far Cry 3 and it flies at 60fps with stock nvidia settings. 1920x1200, 4xMSAA, all settings Ultra. Though the GPUs were running in high 80'C low 90'C.

If i tweak nvidia specific MSAA settings would i get some more quality/better performance?

 

[rubenhak]

Yes, I'm getting those numbers but with an SLI setup not a single GPU.

not far off:

1) SLI Rendering Mode=NVidia Recommended. Second GPU not used. 1920x1200 produces 23-32 fps.
3) SLI Rendering Mode=Force alternate frame rendering 2. Both GPUs utilizing 100%. fps raised to 42-52 fps.

the 1900x1200 looks 36 fps plus add in that a bit better i7 was used . .but 6 fps (20%) is rather substanial. and not all games wil scale ti 100% increase with a SLI set up; for some a 60% increase is not bad.

To make the settings effective in the in nvidia inspector what should I set in the nvidia control panel so that those settings in inspector are in use? Right now all of the settings in nvidia control panel are set to "Use global settings"

if you are configuring the global settings or base settings that will throw off the rest of the games. the hitman absolution so any changes affects that game only.

Actually my question was if the settings changed in nvidia inspector (at least some of them) are supposed to be visible in nvidia control panel and vice versa?

I just tried Far Cry 3 and it flies at 60fps with stock nvidia settings. 1920x1200, 4xMSAA, all settings Ultra. Though the GPUs were running in high 80'C low 90'C.

If i tweak nvidia specific MSAA settings would i get some more quality/better performance?

 

[klepp0906]

If the CPU is near maxing out, it isn't fast enough to give instructions to the graphics cards.

LOL dumbest thing ive ever heard. How far up there did you find this tidbit of silliness? haha

 

[klepp0906]

without digging into your system specifics and what/or if anything is bottlenecking, or how well your system is maintained.... my first suggestion would be try a few other games. Some games support SLI but aren't coded well for it. Example. WoW. Supports SLI sure, but you'll see near nil as far as performance gain. Try turning on AA as well and see if it hinders performance further.. or your performance stays the same. That will be very telling. Hope for the latter (which is what im betting on)