OTOY Forums

Posted: **Fri Mar 23, 2012 12:19 am**

there is also this chart:

fma32 performance 1.5 / 2.0 8-)

if octane can take full advantage of this, it'll be great news for all octaners...
*starts drooling uncontrolled*

EDIT: oh, and there is thisss:

(the blue bars of course)

sources:
http://www.brightsideofnews.com/news/20 ... x?pageid=1
http://www.brightsideofnews.com/news/20 ... x?pageid=4

Posted: **Fri Mar 23, 2012 1:49 am**

ok. ordered one & will have it in a few hours. next info will be if it is at all working in octane with the current cuda build, and if not out of luck, some scores

Posted: **Fri Mar 23, 2012 1:55 am**

OK ... I am waiting for the result with octane .. I tried to order one but was already out of stock here .. it did not last even half day ...

Posted: **Fri Mar 23, 2012 3:05 am**

Jaberwocky wrote:Ok Guys.

Just picked this snippit of info out for those running out of textures on a scene

Quote

Now that the number of texture units doubled, NVIDIA also changed the way how Texture Units operate. In the pre-Kepler era, you could use up to 128 simultaneous textures. Bindless Textures are probably the key reason why Samaritan can run on a single card, and why the performance of GT 640M and GTX 680 is where it is. This feature increased the number of simultaneous textures from 128 to over a million. Yes, you've read this correctly. An engine developer can now run its shader code on all the textures he or she plans to use and run those textures as they come along. In ideal circumstances, Samaritan demo can address operations on 200-300…1000 textures and Kepler gives you that level.

I picked it up out of this review

Link

http://www.brightsideofnews.com/news/20 ... x?pageid=2

Interesting

Texture problem solved ?

indeed if this can be accessed by Octane in the next builds. Add instancing & displacement support & it's practically ready for Prime Time!

Posted: **Fri Mar 23, 2012 3:08 am**

MEC4D wrote:OK ... I am waiting for the result with octane .. I tried to order one but was already out of stock here .. it did not last even half day ...

Which means the 5XX series will drop like easter eggs from the bunny LOL, I've already seen the mid priced 2GB 5XXs begin to dive. So if you're on a budget it's gonna be a good time to pick up an extra card or two (if you mobo supports multi PCIe 2.0 cards).

Of course if my next couple of web clients pay on time & quickly...I might be able to give myself an Easter treat!

Posted: **Fri Mar 23, 2012 8:52 am**

i just paid for one over at ebay...but only on apr9th to apr13th i will get it!

Nildo

Posted: **Fri Mar 23, 2012 9:25 am**

Hi Guys...

a little help please...

the gtx 680 its said to have a BUS INTERFACE of PCI Express 3.0

will my MBoard the gigabyte X58A-UD7X, support this card? i'm having trouble understanding the following info from manufacturer website:

Expansion Slots

2 x PCI Express x16 slots, running at x16 (PCIEX16_1/PCIEX16_2) (Note 2)
2 x PCI Express x16 slot, running at x8 (PCIEX8_1/PCIEX8_2) (Note 3) (The PCIEX16_1, PCIEX16_2, PCIEX8_1 and PCIEX8_2 slots conform to PCI Express 2.0 standard.)
2 x PCI Express x1 slots
1 x PCI slot

do you think i'll have issues? right now im running 2 gtx480 with this board with NO issues (except some minor heat excess when rendering).

Nildo

Posted: **Fri Mar 23, 2012 10:04 am**

Yes it will run fine.
PCI-e is backward compatible. The bus will run at pci-e 2.0 speeds rather than 3.0.
It will just take a little bit longer to load your scene than if the mobo was pci-e 3.0 as well = no change for you but the actual rendering will be faster of course.
You can actually get 3 double slot cards in that mobo if they will fit in the case.
You need to look out for cooling issues with closely spaced cards though.
When you have more than 2 cards in there the bandwidth is shared between slots as per the notes.
They go from 2@16x + 2@8x to 4@8x, again really a non issue for Octane.
HTH :geek:

Posted: **Fri Mar 23, 2012 10:26 am**

Ouf..thx alot pixelrush...

that helped understanding alot..

so i can really stick 2 or 3 cards in with no issues? other than heat of course...

mann...this is like a dream

.

Nildo

Posted: **Fri Mar 23, 2012 10:38 am**

Yes, a GTX680 should be about twice as fast as a GTX480 and consume ~55W less each, be quieter and cooler, plus they have 2 or 4 gb instead of 1.5gb. 8-)

If Kepler do allow more than 128 textures, well its an easy sell to Octaners, isn't it?

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