Mac: M3 - *Hardware accelerated RT (Part 1)

The moment you start doing exterior shots, VRAM will become your first bottleneck, if your end goal is “city scale” type of exterior shots the M1’s 128GB is a no brainer (the 12GB of the 3060 won’t cut it)

I keep referring to this scene whenever the amount of VRAM is questioned (can’t find any better example ^^ )

That render failed to load into a 24GB RTX 6000 and only the 48GB RTX 8000 managed to load it (the others required NVLINK to get there).

All those high-res textures plus all that amount of geometry have to live somewhere after all.

Now don’t get me wrong, 12GB could be just as good, depending on the complexity of your materials/geometry and the amount of time you would spend optimizing things.

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Too bad. I thought It was a great feature to save perfectly working displays from becoming e waste.

Yes I know :frowning:
Perhaps related to the same reason eGPUs don’t work or there is some other limitation.

@Metin_Seven This actually might work to use the old iMac as and display on the M1 however.

I cant say how well however.

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Hmm, probably nothing that intense, at least to begin with…but would complex geometry nodes require more VRAM than 12GB could offer as well?

Along with the other things I mentioned, I want do some landscape type visualisations.

@Metin_Seven honestly if she is in 2D work the basic Mac mini is fine.

I cannot even complain about the entry level Mac Mini I got.

Only 8 GB Ram can be an issue when too many apps with big files are open.

The studio I feel is overkill for her.

The CPU has a punch for that task and the GPU is sufficient.

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@bpeng
Well landscape geometry can add a lot to calculate but like in 3D renewing this can then also be a topic of optimizing the scene data for faster rendering.

I work on a max mini Lol so it is weak.

But the denoiser makes it usable and for final rendering I use online render services or fire up my macpro with the two gtx 1070Ti in them.

Particularly using a render farm and denoiser is cutting down on wait time significantly.

Obviously with a pc and an rtx nviida card yiu can work faster - that’s a logical given.

Maybe wait till the mac mini is updated

@Metin_Seven the same for your wife

Possibly the Mac mini upstate will position it will

Not with a max or ultra cpu but possibly with a m1 pro but I guess / bet on the m2 pro coming to the Mac mini.

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Actually just though if I had the choose between M1 mini upgraded to 16 Gb (1100 USD) or the base Studio with the M1 Max (2000 USD) and depending on the work one does, I would get the M1 Max.

Yes it is nearly twice the price but you get 3 times the GPU cores and twice the RAM, and more CPU cores. In terms of “future proofing” it might actually be the better choice.
Don’t think the M2 mini will be faster than that. M2 Pro Mini might get close if they do that.

Well and the studio has ports in the front which I think is really handy.

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Like I said, you can manage to do quite a lot with 12GB as long as you invest some time for optimization.

Just to name a few:

  • instances instead of copies.
  • camera culling.
  • rendering fourground/background separately and comping them later.
  • using low res texture / low poly count for things far from the camera.

Notice the ram, disk space and render times in both examples

For more on scene optimizations, check this link (for 3ds max but the same logic apply to any software).

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Thanks for the advice guys, appreciated!

Looks interesting, thanks. Looking at the dongle options I assume those are meant for the new device, not the old iMac?

Does anyone have experience with this solution, preferably using an old iMac?

Now that AMD cards get Blender Metal support, aren’t also the AMD iMac’s or Intel Mac mini + eGPU a viable solution?

Hey, total aside here, but how do you get the little Ukraine flags? I haven’t had much time to visit the board recently, so I’m kinda lost on all the up to date happenings around here.

Good question not sure about that.

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also very interesting and more so when comparing the 24 core Max in the 14" to the one in the Studio and interesting how close it is to the 32 core in the 16" in some cases.

My gut feeling always told me that the M1 Max was a bit thermally challenged in the MacBooks or intentionally limited (guess I was right).

24 core in the studio is 2 sec slower than the 32 core in BMW. :laughing:
For those that don’t want to watch the full thing.

even Classroom is not bad.

Now I really would love to see the 32 core Studio.

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well I jinxed it. I updated to 12.3 and already my flickering benq external display issue has come back with a vengeance. it flares up every couple hours of use since updating. fyi @Metin_Seven !

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Also interesting view point :

RTX3090 energy cost per year including host machine: £981/year

M1 Ultra energy cost: £148/year

Even if it’s half the speed that’s a win.

@Renzatic

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People should stop using the BMW scene for benchmarks. It was great a couple of years ago, but isn’t a proper challenge for today’s hardware. It’s also testing only a very small feature set of Cycles (no SSS, no hair, no principled shader, …).

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Yes besides that I love the little box and OSX that has been one of my considerations.

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Yes I know, at least he added Classroom this time.

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Another question and why I will get the max studio max with more Ram is also how well windows 11 arm and revit would work being virtualized using UTM.

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:sweat:

I hope the issue is soon resolved again. Did you try a more expensive HDMI cable and/or USB-C to DisplayPort?