test scene

[scottsch]

Can someone do a 800x600 render that goes to 2500 samples? I'd like to compare final image quality to iray. TIA.

[bear75]

Can someone do a 800x600 render that goes to 2500 samples? I'd like to compare final image quality to iray. TIA.

here you are:

[cecofuli]

Just for fun, a node with a 3 years old 9800GTX with 512 GB RAM = 17min 43 sec XD

[kiteman]

No one has done the test with the Quadro 4000?
I have this card, but the test scene is not ready for 3dsmax 2009.

Regards.

[scottsch]

here you are:

Thank you, bear75, I am testing with mental ray until I can get vray2.0 and that image helps.

[jow]

Quadro 4000
Driver 259.81
8m 19.9s

[kiteman]

Quadro 4000
Driver 259.81
8m 19.9s

It seems incredible this data, I thought this card would be faster.

Thanks for the contribution Jow.

[scottsch]

It seems incredible this data, I thought this card would be faster.

Thanks for the contribution Jow.

The Q4000 only has 256 cores, which puts it in the GTX 280 range of cards.

Here is probably the best videocard comparison that is constantly updated. The raw power of the vidcard should translate to V-Ray RT render strength as well, at least for NVidia cards:

http://www.videocardbenchmark.net/high_end_gpus.html

It also shows why the leader is someone who is piling up GTX460 cards. The GTX 560 will be released this month, and is supposed to be ~25% faster than the GTX 460, in the $250-$300 range

[vlado]

Hm, that benchmark measures video performance, which may not be exactly the same as OpenCL performance.

Best regards,
Vlado

[BeaZtiE]

some results from me

Quadro 600 - 28 m 51 s
Quadro 2000 - 14 m 28 s
Quadro 4000 - 8 m 20 s
2x Quadro 4000 - 4 m 11 s
GTX 470 258.96 - 3 m 55 s
GTX 470 259,81 - 3 m 58 s
GTX 570 - 3 m 35 s
2x GTX 570 - 1 m 48 s
3x GTX 570* - 1 m 17 s

*attention.. the third slot is JUST pic-e 4x (in slot 16x) and i think this provoke this "slow" result (i think with third pci-e 16x full speed slot the result will be under 1 min.. but will check this soon)

cheers

[Alan Iglesias]

So here are some benchmarks with the GTX 460, and the GTX 560, and both boards together.

The 560 requires the newest drivers. For those interested, I could not get a compile with the 266.58 drivers and V-Ray crashed, so go ahead and use the 266.66 drivers, which do in fact compile and do not crash V-Ray...at least not here.

The machine is a i7/960 3.2GHz Intel MB with with a couple of PCI-e x16 slots.

So, first the 460 with the older drivers:

GTX 460 - 336 cores - 700Mhz core clock - 258.96 drivers - 6min, 41sec

Now we add the 560 to the mix, and of course we have to install the 266.66 drivers first.

GTX 460 - 336 cores - 700Mhz core clock - 266.66 drivers - 7 min, 25 sec
GTX 560 - 384 cores - 822Mhz core clock - 266.66 drivers - 5 min, 38 sec
Both boards together ------720 cores----- 266.66 drivers - 3 min, 13 sec

Summary:

Clearly, you can see by the 460's numbers that the newer drivers are slower by just about 20%, which is substantial. I do hope they can get the performance back to where it was and I hope they do it soon. If they do it, I'd like to see both boards do this benchmark in something like 2:45.

-Alan

[BeaZtiE]

Model of motherboard please...
probably your pci-e 16x prots are not real 16x (but 8x+8x or probably 16x+8x)

[Bpositive]

I finally got to try out RT GPU

Gainward 580 GTX 3 GB Phantom version:

2 MIN, 53 SEC

Drivers: 266.58

[ghiom3d]

1mn39
1x 480GTX on pci x8 + 1x 580GTX on pci x16

I will try later with adding an Xpander with 2 580GTX ( when i receive it )
I hope much about this xpander and VRAY RT Gpu . some white dots on the render need to being corrected to make this renderer competitive with Arion and Iray

[vlado]

some white dots on the render need to being corrected

Can't say I've noticed this, but If you have a scene, it would be useful to send it to me at vlado@chaosgroup.com to check out what may be wrong. Also keep in mind that both iray and arion will usually filter out speckles before showing you the image.

Best regards,
Vlado