iMac Pro Predictions?

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dagmarpiano
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iMac Pro Predictions?

Post by dagmarpiano » Tue Jan 02, 2018 9:12 pm

I’m pretty likely to get an 18-core iMac Pro with 4TB SSD and 64GB RAM next month.

As a bit of a guess how do you think Cubase 9.5 Pro will manage?

Holy land of countless resource-hungry plugins and vast sample libraries? A massive expensive regret when I find out that Cubase is so poorly optimised for this machine that it’s no better than my current 5K iMac which can’t keep up?

Have a guess, or an educated guess! I’m interested to hear your predictions.

:)
OSX High Sierra | Cubase 9.5 Pro | 2018 iMac Pro (18-core 64GB, 4TB SSD)

Gothic Storm Music http://www.gothic-storm.com
Library Of The Human Soul http://www.libraryofthehumansoul.com

zipb
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Re: iMac Pro Predictions?

Post by zipb » Wed Jan 03, 2018 5:05 pm

If you have the money, it probably won't disappoint. Don't know about the 18-cores though, I've read stories of older Macs where 12-cores were not much faster than 6-cores with Cubase. I''ve seen tests with 10-core iMacs(albeit with video/graphics/coding) and the 10-core iMac Pro was not 2,5 times as fast as an older 4-core. The returns are diminishing and heavily depending on the program and its demands on the hardware/OS.
Sample libs will load in an instant thanks to the NVME SSD.
You don't need a spiffy vega GPU for Cubase, but it will not hurt.
Desktop:
Gigabyte Z390 Designare/i9 9900k/OSX10.14.5/Cubase Pro 10.0.30/32 GB RAM/MSI AMD R480x/SSD's/Metric Halo ULN-8/UAD2 Quad
Laptop:
MacBook Pro 8,2/OSX10.12.6/8GB RAM/SSD/Metric Halo ULN-2

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dagmarpiano
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Re: iMac Pro Predictions?

Post by dagmarpiano » Wed Jan 03, 2018 5:17 pm

zipb wrote:
Wed Jan 03, 2018 5:05 pm
Don't know about the 18-cores though, I've read stories of older Macs where 12-cores were not much faster than 6-cores with Cubase. I''ve seen tests with 10-core iMacs(albeit with video/graphics/coding) and the 10-core iMac Pro was not 2,5 times as fast as an older 4-core. The returns are diminishing and heavily depending on the program and its demands on the hardware/OS.
Sample libs will load in an instant thanks to the NVME SSD.
I can live with some diminishing returns, i.e. some returns. The big problem for me is if I blow so much cash and there's very little return. I guess I could wait for other experiences or go for some high stakes trial and error :twisted: I strongly suspect my personal main bottlenecks to be a mix of CPU and HDD speeds thanks to big simultaneous sample libs playing away coupled with intensive plugins (Vienna MIR and Nebula to name and shame two). I have 32GB and RAM and I'm not using it all so I don't think that's the issue.

I also read stories of Cubase not being good with multiple cores but saw forum posters talking about workarounds where you basically avoid groups within groups since at the time of writing Cubase seemed to allocate only one core per master group, therefore allocating whole chains of insert plugins to one core. No idea if this was proven to be true or fixed though.
OSX High Sierra | Cubase 9.5 Pro | 2018 iMac Pro (18-core 64GB, 4TB SSD)

Gothic Storm Music http://www.gothic-storm.com
Library Of The Human Soul http://www.libraryofthehumansoul.com

zipb
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Re: iMac Pro Predictions?

Post by zipb » Thu Jan 04, 2018 12:00 pm

Powerful Macs are nice but expensive.

On the other hand, pro PC(eg HP Z series) hardware is not cheap either.

But comparing PC's and Mac's is still apples(!) & oranges. For example, there's a limit on the amount of VST plugins one can run on PC, which you don't have on Mac. And, there's a warning about PC systems with more than 10-cores on this site.
Desktop:
Gigabyte Z390 Designare/i9 9900k/OSX10.14.5/Cubase Pro 10.0.30/32 GB RAM/MSI AMD R480x/SSD's/Metric Halo ULN-8/UAD2 Quad
Laptop:
MacBook Pro 8,2/OSX10.12.6/8GB RAM/SSD/Metric Halo ULN-2

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Fitz
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Re: iMac Pro Predictions?

Post by Fitz » Sat Jan 06, 2018 1:22 am

The Xeon CPU should perform nicely and being Xeon, particularly nicely for anything that uses floating point where it will be literally twice as fast as the comparable 'i7' (I would *assume* that VSTs such as convolution reverb plugins should take advantage) but I would expect Cubase to perform exceptionally well regardless.

Not sure about Cubase and multi-core performance these days. Cubase on macOS has traditionally always been worse with regard to latency with lower latency being achievable on the same hardware under Windows. Note that in the past it was the accepted advice to go for less cores but higher clock speed. It would be useful if Steinberg published some current advice.

The NVMe SSD is actually a pair of SSDs in RAID0 and should reliably achieve 3GB/s. Needless to say, budget for a backup drive to use with Time Machine.
macOS 10.11.x / C9.5 Pro

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Re: iMac Pro Predictions?

Post by paulpaul » Sat Jan 13, 2018 2:49 pm

Fitz wrote:
Sat Jan 06, 2018 1:22 am
Note that in the past it was the accepted advice to go for less cores but higher clock speed.
I think this is still the case.
As far as i know Cubase does not support more than 4 cores efficiently.
I have heard that more cores could even slow down cubase.
The best CPU for cubase would be a dual core with 10Ghz clockspeed......

Saying all this, i am no expert!

It would be nice if someone who is an expert would share his knowledge....
Cubase 9.5.1 - Macbook Pro Retina late 2013, 16GB Ram, 1TB SSD, Apple 27"Cinema Display - MAC OS 10.13.2. SPL Crimson - Steinberg CC121 - Softube Console 1 - Lots of Plug Ins

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dagmarpiano
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Re: iMac Pro Predictions?

Post by dagmarpiano » Sat Jan 13, 2018 6:46 pm

Well just ordered it now, let’s hope it works out! I’ll test plugin counts with Cubase vs Logic. And move to Logic if Cubase is no good!
OSX High Sierra | Cubase 9.5 Pro | 2018 iMac Pro (18-core 64GB, 4TB SSD)

Gothic Storm Music http://www.gothic-storm.com
Library Of The Human Soul http://www.libraryofthehumansoul.com

TNM
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Re: iMac Pro Predictions?

Post by TNM » Sat Mar 03, 2018 3:45 am

so how are you finding it? You are in a unique position to let us know how a fully specced imac pro performs with cubase at low latency!
1) iMac Pro 3.2ghz 8 Core, 64GB Ram, 2TB SSD, OS 10.13.6, Caldigit TS3+ Dock, Startech USB-C Raid with Crucial MX500 1TB x2, Startech USB-C with 512Gb 860 Pro, Tbolt3 1TB SSD-R G Tech x 2, USB3 8TB Seagate MyBackup+, Tbolt Apollo 8 x 2, TBolt UA Satellite x 2, Tbolt Apollo Twin Duo, TI2 Desktop, MoxF6, tons of midi synths, CB Pro 9.5.3.
2) Macbook Pro 2015, 2.8ghz i7 quad, 16GB ram, 1TB SSD, OS 10.12.6, CBPro9.5.3/Logic10.4.1/PT2018.7, Internal Sound, Lacie Rugged SSD TBolt 512GB, G-tech 1TB 7200RPM TBolt, USB3 WD 2TB MyPassport.

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dagmarpiano
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Re: iMac Pro Predictions?

Post by dagmarpiano » Sat Mar 03, 2018 8:40 am

The upshot is: nice improvement, Cubase is better than Logic, but it’s not miraculous. Cubase seems to be spreading the load well between the cores.

More details here:

viewtopic.php?f=250&t=133032&hilit=iMac+Pro
OSX High Sierra | Cubase 9.5 Pro | 2018 iMac Pro (18-core 64GB, 4TB SSD)

Gothic Storm Music http://www.gothic-storm.com
Library Of The Human Soul http://www.libraryofthehumansoul.com

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