VRAY slow on AMD FX 8350

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chaosmonger

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Aug 2, 2010
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Hello guys, I'm fighting with this issue for long time without any solution...
(I'm italian forgive my bad english).

I'm rendering an animation with Vray 2 and 3DS Max 2011.
I'm asking a friend of mine some help, and I cannot understand why, but his renders are 250% faster than mine, even though I've a better computer.

Of course the scene is EXACTLY the same, with EXACTLY the same Vray Preset, texture, etc.

I've an AMD FX 8350, with 16GB RAM.
He has an I7-2600 with 8GB RAM.

My render time per frame (on same scene, same settings, etc.) is: 25mins.
His render time is: 10 mins.

How is it possible?!?! What's wrong!??!
I've already made a benchmark and everything seems to work perfectly. All the 8 cores are working at 100% at 4k clock. The RAM is working (9gb/16). Everything is good, but the render time... I've tried to install a newer version of Vray and also a brand new version of Max, but the problem remains.

So, my question is: how is it possible? Can some installed software create conflict with Vray?
Do I have to format? Or there's some glitch? I've to use BIOS settings? What can slow down my render time comparing to my friend's one?

I'm going crazy!
PLEASE HELP!
 
Solution
SOLVED! I had the very same problem. We have here a small render farm (10 machines) the first 9 are i7 3770, we decided to give a try to the AMD fx8350, and we noticed that it doubled the rendering time on an specific scene (10mins on the i7 vs 20mins on the fx8350). But after upgrading vray to version 2.40.03 and installing the windows 7 patches, the AMD perfomance increased enormously. So, briefly, update vray to 2.40.03 and install windows updates and fixes for AMD processor.

Hope it works for you too!
Yes, I'm using 0-2-4-6 cores when I'm with half cores...

Regarding the mobo, yes, I noticed the throttling expecially on high temperature. But now I made a test checking the core speed and multiplier and almost no throttling (it put the multiplier down to 7x instead of 20x once every 5 minutes, but just for few seconds, then it returns to max speed).
 


Don't trust HWMonitor to check power usage as it is not accurate whatsoever.

As for voltages, you could go into BIOS as have a look what it says there.
 
The voltages on your motherboard are still way off.

5v should be 5v
12v should be 12v

There can be a slight variance but not the several volts off that your MB is showing. The PS looks damaged or not powerful enough.
 


So do you think it's a problem with the Power Supply? Or is the motherboard not working properly? There's something that can adjust on the BIOS?

My PSU is a Cooler Master 750Watt, I think it's enough... and it's quite new.

 


Good idea the MB has Integrated ATI Radeon™ HD 3000 GPU.
 



Yes, my BIOS is flashed to the latest version, the 1503, and when I bought it it was already on a version after the 1401...
 
Just a matter of note, we are almost at page 4 with 1015 reads!

Edit -
I'd better add something, it might look like a Bump.

"The project is saved on a secondary Hard Drive (not the os one)" does that mean that Vray is installed on the second drive or is Vray/3dsMax installed on the primary drive?

How much free space do you have on the primary drive?

Why did you refer to your ram as being 9/16 gb in your first post?

What size are your virtual drives? And, how many are there?
 


eheeheh! I'm collecting badges.... 😛

anyway, I'll try to remove the video card tomorrow, now I'm rendering. Let's see what happen.
But I've tried almost everything!!!
Tomorrow I can also try re-installing on a new harddrive a brand new os, max and vray...
We'll see!

 
I just tried my 3dsMax for APE.max. It made no difference when I changed the display settings fps from 60 to 75 (I can go as high as 200 fps) and the resolution from 800 x600 to 1280 x 1168 (or something) however, in the render dialog, I changed from 320 x 480 to 800 x 600 and the expected time jumped an extra 5 minutes.

Considering that your render resolution is (what?) 4000 x 40000, I think that you should expect a long wait for the render.

Try a render at 2000 x 2000, you may find the time required to be less than half.

4000 x 4000 is rather high and not really suited to anything except maybe an Imax theater.
Most console games are still below 800 x 600, so this is not for a console game.

Any chance on giving a hint as to what purpose this project is for, in any way or purpose?
 

Install these as well if you're running Windows 7 http://teksyndicate.com/forum/cpu/amd-fx-8350-hotfixespatches/131535
 
The OP is rendering animations for Imax Cinema, using images as large as 4000 x 4000.
With my older version, it takes almost 7 minutes just to do 1 pass (of 6 passes) of the first frame (of 157 frames), for almost the same size.

I think his problem is that he is also using other applications at the same time rather than just allowing the PC to run the renders, and most likely sets the Pc to sleep mode rather than shut down when not in use.

AMD is not that crash hot when it comes to video editing or rendering, for that matter, he really needs an Intel based system with Nvidia video card, even though the video card is not practically used with rendering.

In my Opinion...
 
SOLVED! I had the very same problem. We have here a small render farm (10 machines) the first 9 are i7 3770, we decided to give a try to the AMD fx8350, and we noticed that it doubled the rendering time on an specific scene (10mins on the i7 vs 20mins on the fx8350). But after upgrading vray to version 2.40.03 and installing the windows 7 patches, the AMD perfomance increased enormously. So, briefly, update vray to 2.40.03 and install windows updates and fixes for AMD processor.

Hope it works for you too!
 
Solution
Hello!
I haven´t readed the entire thread (just the first two pages).
I know that you use exactly the same scene that your friend, but......what happends if you increase the "Dynamic Memory" inside vray parameters? (it usualy comes in 400mb, raise it to 6000mb)
Since you told somewhere that you use tons of high res textures i thing there must be a clue.
Greetings from Argentina.
 
Well the solution is installing these hotfixes.. At work we have a fx-8350 and it renders now as it should just by installing these hotfixes.
Running Vray 2.30 here.

Regards,
 
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