Geforce 660 newly acquired with 8gb of ram, wondering how long render times should be for Iray

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I just picked up a desktop computer form a buddy of mine for 225 it came with 8 gb of ram, the geforce 660 gpu and a decent cpu, not sure the specks on that. I was wondering how can i take advantage of my gpu now that I have it for iray. my render times are still kind of long for 3840x2750 sized images, some scenes like Girls Apartment with two models in it and one huge mesh light took 10 hours to get to 99% and 5000 iterations.

The section in the progressive rendering marked Rendering Quality, its at 1, should I move that up at all? For a ultra hd image how many samples would suffice? Im sorry if these questions depend on information that i am leaving out.

Is this card any good, did I get ripped off? Thanks for all the help everyone has given on this forum!

Design Anvil - Razor42

Try a simple render and then have a look at your log file via Troubleshooting-view log file. At the bottom you will see how IRAY is rendering or any issues. Also check under render settings and the advanced tab before you render and make sure you have the GPU selected to render. I would expect a Geforce 660 to perform better than what you have described imo.

Also have a look at this thread there is a base scene to test for a benchmark times http://www.daz3d.com/forums/discussion/53771/ I would say if you test this and your time varies significantly from other similar systems there is definitely an issue somewhere in your setup.

mjc1016

Razor 42 said:

Also have a look at this thread there is a base scene to test for a benchmark times http://www.daz3d.com/forums/discussion/53771/ I would say if you test this and your time varies significantly from other similar systems there is definitely an issue somewhere in your setup.

My 440 is faster than that...make sure the drivers are up to date. Try a test run of that scene, above, before and after the driver update.

Ademnus

I understand windows uses most of that 8gb. Are you able to double it at least?

mjc1016

sgreco1970 said:

I understand windows uses most of that 8gb. Are you able to double it at least?

Only if you let it...disable all the fancy eye candy and a bunch of other bloatware and Windows is pretty darn lean.

Totte

In the log you will see if Iray rendered using the card or CPU only. What is important (it can't be said enough times I think) is that if the scene (meshes and textures) doesn't fit in the CPU VRAM, Iray will fallback to CPU render. It is important to strip out unneeded meshes and use texture atlas to compress textures that wont need a high resolution.

The example I usually use it if a person in the distance has an eye that will be 2x2 pixels in the final render, having 4096x4096 or even a 512x512 texture map for that eye is a waste or VRAM.

Kharma

mjc1016 said:

sgreco1970 said:

I understand windows uses most of that 8gb. Are you able to double it at least?

Only if you let it...disable all the fancy eye candy and a bunch of other bloatware and Windows is pretty darn lean.

can u tell me which items in windows I can disable and how to do that? thanks

mjc1016

Kharma said:

mjc1016 said:

sgreco1970 said:

I understand windows uses most of that 8gb. Are you able to double it at least?

Only if you let it...disable all the fancy eye candy and a bunch of other bloatware and Windows is pretty darn lean.

can u tell me which items in windows I can disable and how to do that? thanks

Which version of Windows?