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I'm betting the current drivers are NOT optimized for OpenCL on the 1080. IF they were, we should see significantly better performance compared to the 980Ti. A stock Titan-X or 980Ti is still Maxwell-based, at clocks a LOT slower than a stock GTX 1080, which is Pascal based with more and faster memory too.
Hold out for updated drivers for the 1000 series cards before we decide too much on OpenCL performance. (current drivers are probably primarily there to get gaming/VR running on the new cards, not high-end rendering. OpenCL and Iray are going to probably be relegated to second or third updates to see full performance benefits.)
Nvidia being Nvidia, I half suspect they'll delay maximum driver performance for Iray and OpenCL on the new cards so as to justify the continued existence of the TitanX. So long as the gamers are well catered for, the GTX 1080 and 1070 will still fly out the door.
with iray there is not full potential , when you use 1 card yes but the moment you add one more the second card is used only 45% for rendering and the scene need to be more complex or it will be even lower %
1 Titan X + 3 x Titan X result in 186% total rendering power and not 400% it would be good time for Nvidia to work on the iray software so it improve the performance when using more than 1 card
I can overclock my 2 cards to 1500Mhz but this means nothing with iray still no rendering speed improved the only thing that improve is the speed in real time viewport when rotating the scene but not rendering that why I am little optimistic at this moment until I have it in my hands so I can say more about
the driver is not the problem , upgraded iray software yes
Octane had the same issue before , but got fixed and it run faster with the same driver
I need the extra card anyway for GPU texturing and monitors but if it perform well with iray in combination with my other 2 Titans then will be just a big plus and I may get second 1080 as well for full house at the cost of 1 x Titan X SC that I was about to purchase this summer anyway . 11 days to go and I am on the list already ..and we will see how it goes in practice
Not sure but maybe $200 more since it will be super clocked edition for sure
EVGA will have release on May .27 for the founder edition first what cost more just for the cool looking shroud that you never see anyway for maybe $700 or more ..I would be more happy if they finally placed the power connector on the side and not in the front
check here .. interesting
http://www.evga.com/Products/Product.aspx?pn=08G-P4-6180-KR
But seriously I am waiting with the purchase until SC with water block show on that will be the best 1080 card and in main time I will see real reviews from real people and then make final decision 1080 SC or one more Titan X SC .... unless you wanna be FIRST and then regret lol
I skimmed this thread over somewhat quickly, but I'm pretty sure I've read it here and in other threads that adding a second GPU will only cut your render speeds by 45%. When I added a second GTX 980 to my machine and did testing, my render speed improved by 53%. Meaning if it took 4 min with one GTX 980 it only took 1 min 52.8 seconds with two GTX 980s. I'm assuming the reason the improvement is higher than 50% is because only one card has to run my monitor. I would also like to point out with my computer build each card gets 16x PCI express lanes, I would assume MEC4D's CPU and MB would also support this. But, I have to wonder if the reason people aren't getting 50% improvement is because their cards get configured in an 16 x 8, or 8 x 8 PCIE configuration? I'm curious what you think MEC4D?
I also added a 3rd GPU recently, but it's a GTX 980 Ti, so I can only mathematically calculate what the render performance increase would be if it were only a GTX 980. With 3 GPUs, my build configures them to 16 x 8 x 8 PCIE. Comparing only render times alone I get about a 28.7% performance increase, but the 980 Ti also has almost 30% more CUDA Cores which would drop it in the neighborhood of only a 23.5% increase if it were just a GTX 980... Just some stuff for people to think about...
Sorry, Mec, but the driver IS/CAN-BE the problem as well. Especially for outside APIs like OpenCL. Which was what I was talking about. Iray is ALSO an API, provided by nVidia, which still has to run through the GPU driver. So it is also affected, but to a lesser degree. But since Pascal is a whole new architecture, the driver issue could be more pronounced.
As for the decreasing returns on additional cards.....I'd want to run some more sophisticated benchmarks to find out the actual reductions. Remember, each added card may add to loading and setup time (depending on how well DS is multi-threading the setup code) so your numbers may look worse than they actually are (as far as the actual rendering performance.) Render the same scene (needs to be at least 10 minutes on single card) first on only one card. Record setup time, render time, and total time. Exit DS, restart DS (to make sure there isn't any caching/left-over issues.) Then add the next GPU. Record all three again. Lather, Rinse, Repeat until all GPUs are running. I'd be very curious to see the change in setup/load times as each GPU is added.....would tell us how well the threading and PCI-E bus-contention and bandwidth affect the startup/load times for Iray. If we are seeing the actual render time (not including setup/load time) showing the same reductions you listed, that is either a code issue in Iray itself, or the driver. It SHOULD scale almost linearly (make sure SLI is disabled, as that could create some slowdowns or even crashes) based on the number of CUDA cores availably in total. This assumes of course that all the cards are clocked identically.
@LayLo3D, the reduction in lanes for multiple PCI-E cards really only affects the load/setup time, as the number of lanes regulates the bandwidth on the PCI-E bus to the CPU/PCH controllers. A lot of the standard controller chips use 24 lanes. So 4 x1 and an x4 leaves 16 lanes available. So if you have only one card in an x16 slot, you can use the full bandwidth. But if you have two cards slotted on there, something has to give, as there are only 16 lanes left for them. So most go x8/x8. Some controller chips and high-end motherboards may provide 32, or more lanes. That's where you can get x16/x16/x8 and such available. But those are very high-end (and very expensive....ususally require Xeon CPUs and 2011 socket.)
Relative to RAM, there is one important point to keep in mind when selecting a set of memory modules ("memory sticks" if you prefer). Ever since manufacturers introduced heat spreaders there has been a lot of debate about whether or to what degree they aid in cooling the memory chips. Insofar as I am aware, the verdict is still out on that. Be that as it may, there is no question that "cool" heat spreaders sell memory modules regardless of the fact that it may or may not be particularly logical. Getting to the point, be very careful about the height of those memory modules (or the heat spreaders rather, since the modules themselves tend to be standard sizes). Some of the fancier heatspreaders are much taller than others and may impact the clearance required to accommodate the CPU cooling solution used, as some of the memory slots usually come close to the area of the CPU socket. Be sure to check these clearances, and if in doubt go with a set of low profile modules instead. Most namebrand manufacturers will offer such alternatives for exactly the reason that I have given.
Memory Heat Spreaders work well.....IF you have your case set up to properly flow air between them. Unfortunately, most motherboards and cases have them mounted vertically, with the fans mainly blowing air horizontally across. This won't properly utilize the heat spreaders surface area and results in heat spreaders being mostly useless. IF you mount a fan above (or below) the SIMM sockets, with external air flowing in, then flowing between and over the RAM heat spreaders (instead of the air hitting the side of the front-most SIMM and then diffusing around the rest), you'll see a LOT more cooling of the RAM.
That is all correct, it depends also what you render and how complex is your scene , my cards gets 16x PCI express lanes , sometimes I get max 55% sometimes 50% or 45% sometimes 0% the file in your scene tell iray how to utilize the power of your card , the best choice is when the all cards have the same power for render , if you add slower card it will affect the speed of the faster cards as the slower card will run at 100% always , I don't use my cuda cards for monitors I have no cuda card for my monitor so DS Open GL run by the other device .
that why I need to find if GTX 1080 is really faster that my Titan X SC other way if it is slower it will waste the performance of my twinsTitans
I don't have this issue with Octane so it is not system releated , it is iray software releated . I don't caunt loading time as as I don''t have any as I tested with open iray viewport to eliminate loading time so the utilization is direct . I render with GPU long before iray arrived to DS and I know how the settings should be for the best perfomance, there is another setting I did not tried yet but will today to see if anything improve but I am very optimistic it will
The benchmark for iray rendering software was done by professionals so not cauting rendering time per sec but using benchmark software for that on top of iray software and unless you have all cards for doing the comparison anything else will be no exactly accurate and you get no different results as we do doing minutes and second counting , I know you hope it is not the truth but sadly it is , iray is used in other programs too and many other of milions users guesses that too so it is not exactly DS vs Iray issue here . There are 2 other unbiased rendering software that fixed the utilisation of GPU for rendering and now would be time that iray follow , that would be fantastic .. I still love it btw but I hate the fact that too much power and resource get wasted for nothing .
and If that was all BS then my 2 cards will render 2 times faster the same scene than 1 card but it is not the case with iray software compared to other unbiased rendering software and I don't need benchmark test to see it for that reason I researched what is going on exactly with this cookie
And regarding GTX 1080 , I am waiting for all real reviews and the right drivers since all curently reviews are based by people that sell it and I don''t trust that , I saw before claims with other cards that was never the truth at all and unless you got it in your own system you will never know the exactly truth about how it perform for YOU. I know people that have better system and CPU and the same cards and render much slower than me and even with the same settings .. I really want to believe but not buying cat in a bag just to be first !
+1 I use Memory Heat Spreaders and working fantastic , correct air flow is the key not only for the memory and correct pressure even do better , more fans speed don't mean better cooling for the case but the right air flow.
..OK after reading though all this let me see if I have this straight:
With x4 Titan Xs, rendering will be 86% faster but moving around in the Iray Viewport mode will show a more marked speed increase (depending on scene complexity)?
Since the render speed advantage drops off with the more GPUs you add, then for my purposes it would probably be more efficient to look at a single 24 GB Quadro M6000 workstation GPU instead, as it would mean lower power consumption and requirements for cooling so the cost would most likely be be offset. I can live without "game level" Viewport performance as with that much memory, the tradeoff would be pretty much any scene I create would rarely if ever dump to CPU/Physical Memory mode.
Still not sure about the advantage of overclocking for CGI work (as opposed to gaming) since it results in higher power consumption that translates to more heat generation which can shorten the life span of the unit (don't think Quadros can be overclocked anyway).
Yes you do , however the last beta build 4.9.2.67 improved the speed not only in rendering but also viewport speed . So ignore the benchmarks , max2106 got update also and evedything is faster as well
Yesterday I got around 170% with 2 cards and once even 180% compared to 145-150% before with 2 Titans X SC, today I got another Titan X Hybrid SC for $1099 little faster than my Titan X SC so going to test how much more speed I get this time with 3 x Titanns SC on water cooling, , it can be 190% or 240% or more we will see today after I install it . Quadro cards are very slow with iray and cost a lot but if you looking for the memory then the only way, for that reason I skipped Pascal as I decided to keep my full house at 12GB and if prices drop more I will get another Titan X Hydro SC for the final rig and I am good for some time .Then I can build the external case just for the Titans ..and since they are water cooled they do not produce the heat anymore .and run even faster due to low temp at 35-37C on full load
I will test tomorrow and see if the overclocking works betted now with the new build and post some video to show the perfomance
The official info about GTX 1080 and 1070
when you are going to use more than 2 cards you need to request a code from Nvidia that will activate the cards since Nvidia stopped supporting official 3 and 4 ways SLI for the new 10 series .
They do not recommend to use more than 2 cards,anyway due to the GPU scaling in games and iray you may get less performance for the money as not all software are ready for the new GPU power especially 3-4 ways
But I just got my early B-Day gift .. no restrictions, no extra codes I just hope it perform well all 3 with iray .
It is slightly faster than TitanX SC , water cooled and tuned to perfection . will have to adjust slightly the clock of my other 2 titans so they run at the same speed or I will lose slightly on the performance , I converted manually my other Titan X SC to Hybrids as well by adding the water block kit , but this one is the Original .
That are my reward for quitting smoking so I can save for better things in my life
I am so excited ! one step forward to my goal .
Congratulations on quitting smoking Mec4d, that's awesome! I'm working on it right now :( I know it's one of the best things I'll ever do but... aaarrrrggghhhhhh!!!!!!!!
Well done on giving up the gaspers! I did it several years ago and have never looked back :)
Yeah !Thanks .. I burned 4 xTitan X SC per year or 2 good i7 PCs with 32 RAM ..what a waste lol not to mention the body health
but when you put $400 per month ( like in my case ) on the side in place of burning it for pleasure then you really realize what you are doing
My land lord saw my delivery today and she said :Oh you got money for expensive gadgets , I answer : but I quiet smoking and you waste all my rent money just to buy your monthly cigarettes supply ..she said :shut you are right I need to quiet lol and she smoke not less than $20 a day ..
I quit smoking a year and a half ago. I now vape and almost low enough on the nicotine to be able to quit that. But vaping is a very much healthier way to wean you off cigs and eventually quit. Vaping emits no harmful chemicals into your body or the air. People/gov are trying to make stuff up against it but the science says otherwise. You don't have to convert all at once. Substitute one cig at a time with vaping. Eventually you will completely be off them.
Speaking of burning - it looks like the 1080, and perhaps Pascal generally, has a problem with heat. Quite a few of the benchmarks (games) are throttling down after a few minutes.
An Nvidia "paper launch" is always questionable. A big aftermarket in water cooling for these beasties, I suspect.
Thanks Peter. I'm impatiently waiting for all that kind of information to surface.
That is how I quiet smoking , yeah they try propaganda so big companies make the money from and not little fishes , if it is so bad why they still sell cigarettes that are 8000 times worse killing people for a fact . There is no proof that vaping do any harm other way they will never use it in daily food , cosmetics and asthma inhalators . All they have was some bad china products they tested nothing else .
On the information so far, I would strongly advise anyone against buying the initial release "Founders Edition" GTX1080 cards. This is marketing for "standard cards", and marketing always costs the buyer. Give it a couple of months after the bespoke designs come through. Better and cheaper.
Agree on that 100% Founder Edition is not worth the money and there is nothing extra beside new look . I know people that rushed with Titan X standard edition year ago and regret it soon after
The main reviewers that got gtx 1080 for test don;t even got the right drivers so they can't do correct benchmarks .. or even talk about more than allowed . So all you get are propaganda and speculations , the guy that got one for testing said his head explode reading what people say about the new cards and in the reality they don''t know nothing . As he have it and can''t even proper test it yet so beside Nvidia nobody knows anything .
Reviewers are allowed to say only what they got on paper to say.. that is
But you know if someone say that all the stories made him a headache then you can speculate it is total BS and just another marketing strategy . I hope they prove me wrong but as all of you, I just want to believe !
Caution seems a sound strategy. Let's face it, for most of us this stuff costs enough already. I don't want any decision I make being one that I can't afford. I'm in the enviable position that I have so much to learn on every front that waiting for this won't hurt (much - relatively speaking:)). As advised by MEC4D I'm holding my horses, all three of them, and I'm keeping a close eye on the first one because I'm worried it wants to kick me. In the meantime 3Delight is a great way to learn about a lot of stuff and DS is a blast. It's about time I had another cigarette so excuse me while I go and have a private rant and beat my head against the wall and.... I'm hungry, maybe I'll have an apple.
The resume was too funny ! hahahaha but very smart decision , usually you will never get back all the money if the card is fine but not what you wanted .. too much to lose here , one more week and we all see the truth behind the smoking mirror of marketing business . I am still very curious just too poor to get another one on this moment .... They said they working on GTX 1080 for 3 years , then released one year ago Titan X and 980Ti ? you see .. maybe next year we get a card 3 times waster than everything we know .. tech gadgets are the worse investments ever for us the customers as you know soon you will lose again .
I have a question.
first, my build is
intel i7 6700k
Asus Maximus 8 Hero
Gigabyte GTX 1070 G1
Corsair Vengeance 3200 mhz DDR4 32gb ram
Samsung Evo 850 512gb(x2) ssd
8tb of hdds
corsair h115i water cooler
corsair ax860i 860w psu
now my question is how good is my pc for daz3d? I ran a render of one bedroom scene with one female character i made and it took my system forever, i got hanged in between, Restarted (crashed) once, in the end i had to cancel the render.
When i only render the character without and scene(with iray skin) it takes from 1 min to 2.5 mins to render. I rendered this one bathroom scene with the same character and i think it took like 15-20mins.
Are there any settings (for the gpu or ram memory to render the scene)do i need to set before the render?