[Bf-cycles] cycles, some questions about GPU
jrdnmlr at gmail.com
Thu Nov 17 04:59:45 CET 2011
this is amazing timing. I've just tested a very complex model
rendering on my friends computer. he says the latest GTX 560 Ti is the
best bang for the buck, which he has installed already with windows 7.
tonight we tested it. here are the results:
MacBook pro core 2 duo 2.4 GHz CPU render: 45 sec/sample
intel core i7 quad core 3.40 GHz CPU render: 15 sec/sample
same win7 computer running cycles on GPU GTX 560 Ti: 4.5 sec/sample
this thing screams and is only $260 right now. fully 10x faster than
my laptop. you can easily load multiple of these into your computer.
any of the higher end cards will not be worth the cost increase.
also Nvidia is undergoing a product revamp so I would get a couple of
these 560 Ti's to be ready for multi GPU in Cycles in the coming
months (still less expensive than a 590) and then be ready to replace
the whole thing in another 6-12 months for another $500 when the newer
models have come out and things have settled down.
here is the card I just picked up after today's testing and at my
On Nov 16, 2011, at 6:11 PM, franco cortesi <cortesi_8 at hotmail.com> wrote:
> how about using tesla's with cycles?
> performance seems to be almost the same compared with high end gaming cards but will cycles work with these teslas?
> > From: lalli at gmx.net
> > Date: Wed, 16 Nov 2011 14:20:21 +0100
> > To: bf-cycles at blender.org
> > Subject: [Bf-cycles] cycles, some questions about GPU
> > Hi Brecht and Followers,
> > i'm currently building a new (triple Boot, osx, linux, win) computer, mainly for use with blender/cycles.
> > So there's the Thing i'm struggling a bit: The GPU.
> > Since those question will probably come up for other blender users as well i would like to ask you once and put a summary on my website (bwide.wordpress.com) for everyone.
> > I did a good amount of searching the web for answers, but haven't found.
> > So the Questions are:
> > Cycles GPU Rendering currently is limited by the amount of available memory on the GPU, as far as i know.
> > 1.-will cycles be able to render scenes bigger than the available Memory on (one) GPU?
> > 1b.-if, in future, cycles uses multiple GPUs will it be still limited by the max amount of memory on one GPU or by the sum of all?
> > 2.-Is the rendering speed mainly determined by GFLOPS?
> > 2b.-if not, can you tell me what is?
> > 3.-Does Cycles make use of any "newer" NVIDIA technology? I mean will an older GPU (cycles ready) with same specs as a theoretical new One render at about the same speed?
> > 4.-Cycles doesn't care about Nvidia SLI, "just" (will) use all GPUs, right?
> > 5.-Will cycles care about different GPUs (for example 1xOlder Cuda, 2xNew Cuda)
> > 6.-Will/might it be possible to mix Cuda and OpenCL GPUs?
> > 7.-Is there a chance that, in future, currently older GPUs like gtx 295 will drop out of Cycles support?
> > 8-. just for private use: Do you recommend any GPU?
> > Just wondering:
> > 9.-I know you can't tell, but when you think will multiple GPUs be supported (CUDA)?
> > 10.-Do you know/predict anything about significant speed differences (of cycles) between CUDA and OpenCL?
> > 11.- Between 0-100%, approximate about where is cycles development at the moment.
> > That's it for the moment.
> > And i'd like to thank you for your amazing work on cycles and blender in general.
> > Have a nice Day.
> > bashi
> > _______________________________________________
> > Bf-cycles mailing list
> > Bf-cycles at blender.org
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