Titan Z best choice, or stick with Quadro for safety?

[tricky]

We haven't been too adventurous with RT yet having always come unstuck quite soon on with lack of support for Bercon/Multitexture etc and also by the fact that we work mainly on interiors and not cars

However, we will be acquiring a couple more machines soon and I am wondering if it is worth sticking Titan Z cards in there, or sticking with 'safe' Quadro cards. Any thoughts?

[3LP]

Any really advantage on going with one Titan Z in stead of dual Titan X?
Twice memory and faster for the same $

If it's for RT, I would definitely go for GTX and not quadro.

Stan

[tricky]

Any really advantage on going with one Titan Z in stead of dual Titan X?
Twice memory and faster for the same $

If it's for RT, I would definitely go for GTX and not quadro.

Stan

It wasn't available as a 'standard' option on the machine I was looking at. I guess I could ask...

(However, in terms of memory, does RT use the total combined memory of two gfx cards, or must each card use its own chunk of RAM - in other words, would a 20GB scene fit into a dual 12GB card setup?)

[3LP]

Yope, the scene needs to fit into each individual card, the memory doesn't stack up.
I think it's on nvidia road list for the next architecture to have shared memory though.

On another hand, GPU ram and CPU ram can't be compared side by side as GPU (for some reasons) takes way less ram to render a scene.
IE : A 7Gb ram cpu render fits in 2.5Gb gpu ram render here.

Stan

[tricky]

Bit the bullet and gone with the Titan Z

[3LP]

You do know that the Titan Z has only 6Gb right?
They advertise 12 but it's actually because you have 2 GPU on the same card, each one having only 6Gb.

It's still the fastest GPU card using 1 PCI for RT available for the moment so I'm sure you'll love it.

(And then, just get 4 of those)

Stan

[tricky]

We've switched the cards for Titan X types instead. Not as many cores but should still be ok for a bit of rt testing.

[3LP]

Sure,
It's nearly twice as slow as the Z but still a great card

here is a chart if you need it :
http://forums.chaosgroup.com/showthr...282#post640282

Cheers