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I bought gtx560 to render with Octane and found that it much slower in Blender than my old gtx260. I have to buy a couple of computers to the office and do not know what videocard to buy. Does anyone experiences the same problem?

See this thread:

http://blenderartists.org/forum/showthr ... vidia+slow

Basically, the newer NVIDIA Fermi cards (4xx and 5xx) seem to be crippled (by NVIDIA) with respect the modeling apps (Blender, 3DS Max, Maya, etc).

GeoPappas wrote:See this thread:

http://blenderartists.org/forum/showthr ... vidia+slow

Basically, the newer NVIDIA Fermi cards (4xx and 5xx) seem to be crippled (by NVIDIA) with respect the modeling apps (Blender, 3DS Max, Maya, etc).

Yep

that is why i switched to running a Quadro driver on my GTX460.Max and AutoCAD run sweet as a nut now.

Jaberwocky wrote:

GeoPappas wrote:See this thread:

http://blenderartists.org/forum/showthr ... vidia+slow

Basically, the newer NVIDIA Fermi cards (4xx and 5xx) seem to be crippled (by NVIDIA) with respect the modeling apps (Blender, 3DS Max, Maya, etc).

that is why i switched to running a Quadro driver on my GTX460.Max and AutoCAD run sweet as a nut now.

Can you please expand on this a little? Where did you find the Quadro driver? And how does it work with a Fermi? Did you have to make changes (aka hack) to the driver?

+1. I installed quadro drivers from here http://forums.laptopvideo2go.com/topic/ ... ia-quadro/ and no improvement.

It worked for me on my GTX460.Screen Redraws in AutoCad and 3Dmax are definately faster and are not corrupted using this quadro driver.I used 266.45 driver 64bit english version.

If you want to try this you need to do the following:

1) Install the quadro driver.This will not work as it will not detect your card.It will however unpack the driver into the Nvidia folder on your C: drive.
2) Replace the NV_Displ file in the display driver directory that was unpacked with the one I have attached.
3) uninstall the Geforce driver on your machine
4) reboot and install the quadro driver from the geforce directory again.This time it should detect the card.

Explanation:
What has happened is that if you open the NV_Disp file attached in notepad, you will see near the bottom of the file a series of strings for the various Quadro cards that Nvidia does recognise.
As you will see.This file has been hacked to include the Geforce GTX460SE right up to the GTX580 so that when you run the Quadro driver installer,it will recognise your Geforce card.

Hope it works for you.

Sorry

Might help if i attached the file

Does not seem as if the forum will let me upload a file with the .inf extension.

hence the problem with the upload

you may have to do this manually.

find and open the NV_Displ file within the quadro display driver folder in notepad and add the names of the geforce cards as per the screen shot i have attached.

Then save and close the file.

Jaberwocky wrote:Does not seem as if the forum will let me upload a file with the .inf extension.

You have to zip files (except images) before uploading to the forum.

Cheers,
Yoyoz

yoyoz wrote:

Jaberwocky wrote:Does not seem as if the forum will let me upload a file with the .inf extension.

You have to zip files (except images) before uploading to the forum.

Cheers,
Yoyoz

Ah thanks for that

i will give it a try.....here goes