Two different GPU in the same Software?!

[romologama]

Hi everybody!

Please, I have a doubt!

I have two card NVidia, GTX480 and GTX780SC. In my system I have the new 780SC installed, but in viewport wireframe models is bad performance, very slow!

 

With my old 480, the same scene to test, was great, very fast in viewport, but the 780 is great and fast in rendering!!!

 

So, is possible to install two different GPU and setup 3D Max 2014 to use GTX480 in viewport and to use 780 to final render with V-Ray for example? How I do that?

 

My System: W7x64/32GB/Asus P9X79/XFX 850 PRO

 

Thanks guys!!

[Dimitris Tolios]

Yes.

You install the 480 as a single card, hook up your monitor(s), install drivers...

 

Shutdown, install the 780, re-install drivers if it doesn't get recognized automatically (it should after installing drivers for the 480). Done.

 

The 780 being "headless" (i.e. no monitors hooked to it) will have nothing to do with viewports (or games, or anything outside GPGPU).

 

You can choose through the VRay RT GPU spawner setup to use the 480 in combination with the 780 for raytracing, or leave the 480 doing viewport acceleration, and the 780 raytracing alone.

[romologama]

OK, I understand, but let me ask something: In this case I "lose" the performance of 780 in others softwares installed, for example: Game like FSX, After Effects and Photoshop? Or is simply hook my monitor in 780 and to get performance from new card? And this setup affect only Vray RT or Vray Advanced in rendering?

Thanks so much for you tips.

Edited February 8, 2014 by romologama

[Dimitris Tolios]

OK, I understand, but let me ask something: In this case I "lose" the performance of 780 in others softwares installed, for example: Game like FSX, After Effects and Photoshop? Or is simply hook my monitor in 780 and to get performance from new card? And this setup affect only Vray RT or Vray Advanced in rendering?

Thanks so much for you tips.

 

Yes, you have to switch the monitor and reboot to get the 780 to work as your primary GPU.

Tho for old games like FSX (that's the MS FSX, right?) the 480 should have no issue maxing it out. The bottleneck should not be the GPU of such a grade in this old game.

[romologama]

Thanks man! Your tip helped me a lot. I'll now make some test and see how it work! God bless you!

[Zdravko Barisic]

GTX480 beats up GTX780?

...

Very strange, did you check your max display driver, etc...?

That very shame on nvidia, and disappointed...

[romologama]

Yes, I confirm this, GTX480 is better in viewport when I change to wireframe with many poligons, very smooth, more than GTX780SC. Should be about chip architecture, I don't know...I made many tests.