A public forum for discussing and asking questions about the demo version of Octane Render.
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Thank you I have indeed read that review (and many more) and with your help I am now confident about my 2x Gigabyte GTX 760 4gb plans in conjunction with the ASRock Z87 Extreme 4 mobo I was recommended over at Tom's hardware.
According to http://www.tomshardware.com/reviews/gef ... 542-2.html , " Thanks to a comparatively slim two-slot design, it is also a good choice for SLI configurations, even without a vacant PCIe slot between the cards. Because Gigabyte's design doesn't occupy a full two slots of width, the Windforce 3x cooler has enough room to breathe."
Actually since yesterday Id go for:
1. Budget: 1-2 GTX780 3 GB Palit Super Jetstream (pricing heavily dropped due to 2.)can buy one here for less than 500US$
2. Performance: 1-2GTX 780 Ti(Palit too )
780Ti is basically an "uncastrated" 780aka a better Titan with more performance but without the 6GB RAM. Price/performance-wise the 780Ti is inline with the 780.
That being said I go for 2 GTX 780 Palit SJS for now.
Heat with OCd Palit: using a 680 (JS) and a 780 (SJS) OCd Palit. No heat issues on the cards at all while being silent still. Thats after a 24 h hardcore render job in my ATX case. Only issue: PCH temp too high, meaning I need to rearrange coolers...
Octane scales linearly with the number of CUDA cores within a given GPU architecture (e.g. the GTX 690 with 3072 CUDA cores is twice as fast in Octane as the GTX 680 with 1536 CUDA cores.
From Octane FAQ
In a budget of R$ 950,00, which will perform better with Octane? The GTX 760 or the 660ti? Given that both are Kepler, I guess the 660ti would be best. Is it correct?
My system already has a 560ti, with performance of 3532 (-15%) and 384 CUDA cores (-66%) in reference to the GTX 660. I wonder if there's a simple performance/core ratio between FERMI and KEPLER.
Hi ivankio, my EVGA GTX760 4 GB render the Octane benchmark in 3.08 minutes (PT) and this is faster than GTX 660Ti.
IIRC the GTX 760 is a modified GTX670.
My GTX 560Ti 448 Cores need exactly the same time.
You could compare the bench with your GTX 560Ti.
Benchmark:
Cheers, mib. The GTX 560Ti 384 Cores here took 4:11 minutes.
Thank you for the references. Much clearer that the GTX 760 4gb (plants and blankets!) is the way to upgrade atm.
picajol, you are right my friend. A 580 will absolutely destroy a 760, a 660... renders faster than 770 or 680 in Octane.
And like we say in dozens of threads around these parts, Kepler (600 & 700 series) cores are 1/3 as powerful as Fermi (400 & 500 series). This is why they have three times as many. So my two 580's combined are roughly equivalent to 3072 Kepler cores.
Fermi use more energy.. and yes, they may not support quite as many textures as some newer GPU's, but they are the best bang for your buck, if you are on a budget, or a cheap-ass like me.
Here is a cooling option. I have done The Mod twice now.. I love it.
Hey Frank, could you kindly run the test above posted by mib with 1 of your 580s, please?
After I posted, I've seen how this topic is very questioned here. But benchmark database made with users suffered from inconsistencies in testing conditions and there are some clear troll inputs... there are some wacky numbers out there.
Except this benchmark: http://www.tomshardware.com/charts/work ... ,3308.html
But it would be nice to double check. I mean, if it's not too much trouble.
Unfortunately, here in Brazil, old hardware is not depreciated that much, so it may be still comparable, specially considering the memory factor.
Using octane_22_benchmark.ocs (with pathtracing and alpha shadows off), I am getting 4.15 M/s with one 580 and exactly double that (8.30 M/s) with both. Please correct me dudes if this is an obsolete scene or PT sans alpha shadows is incorrect way. It's been a while since I benched.
I have seen multiple bench charts though, and the 580 bests all GPU's, except Titan, 780, 780Ti, 690 (dual), 590 (also dual)...
And quite honestly, the 460's that I replaced with these were none-too-shabby.. those two are 672 Fermi cores combined (equiv 2016 Kepler) and can be had for around $50 each on eBay etc... shit, I may actually sell mine for $60 total.. but they're shroudless and permanently have heat sinks on and someone would need to do The Mod on them (slap a closed loop cooler on each). The point is, there is still good rendering that can be had for paltry sums, for any of you that are students... down on your luck.. whatever. Chances are, Octane will still support Fermi for a good while...
Something else I would also point out to folks on a budget: In over a year of using Octane professionally, I only ran into three occasions where my 460's vram (1GB) became full and I needed to reduce final render res or lower some image map sizes. Two of these were rendering spread ads 17x11 @ 300 and the other was a crazy-complex scene with over 1.5 million tris (edit:2.2M tris). My opinion is that you practically have to be a stark-raving-lunatic, slapping 4k textures on everything to really, truly need more than, say 2GB, for all but the most ridiculous hardcore scenes. Someone else in this thread declares you need at least 3-4GB.. but he is a hobbyist, and I am not sure what real-world info he is basing that statement on... If money is truly tight, do not get too hung up on gigabytes. Even a 580 1.5GB will serve you very well, provided you learn to manage your textures well. And with Visibility on the way any day now, and then Region Render likely coming before long, these will allow you to use some compositing tricks and/or splitting your renders, to get through those rare occasions that GPU's get full. I would take rendering horsepower over vram any effing day of the week.
Last edited by FrankPooleFloating on Sat Nov 30, 2013 2:03 am, edited 3 times in total.
I have indeed read that review (and many more) and with your help I am now confident about my 2x Gigabyte GTX 760 4gb plans in conjunction with the ASRock Z87 Extreme 4 mobo I was recommended over at Tom's hardware.
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