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h9826790

macrumors P6
Apr 3, 2014
16,656
8,584
Hong Kong
Please explain exactly how a 2nd GPU reduces rendering/analyzing time. I'm very curious about what u meant when u stated this.

On my machine. If a single 7950 require 1min to finish the job (e.g. optical flow analysis / rendering), then 2x 7950 only need something like 35s to finish the same job.

Anyway, I am a FCPX user, and it seems that you already uninstalled FCPX long time ago.
 

orph

macrumors 68000
Dec 12, 2005
1,884
393
UK
scratch disc is just a place for adobe apps to store temp data i gess

https://helpx.adobe.com/premiere-pr...y_scratch_disks_to_improve_system_performance

the scratch will be put on your os drive or with your projects if you dont chose a dedicated drive which adds more io to the drives, if it's on an independent drive it's not slowing things down.

it's good to have
OS drive
media drive
scratch drive

from my understanding (thats a budget not raid setup)

proxy workflows are always worth a look too
[doublepost=1485431553][/doublepost]scratch disc is just a place for adobe apps to store temp data i gess

https://helpx.adobe.com/premiere-pr...y_scratch_disks_to_improve_system_performance

the scratch will be put on your os drive or with your projects if you dont chose a dedicated drive which adds more io to the drives, if it's on an ind pended drive it's not slowing things down.

it's good to have
OS drive
media drive
scratch drive

from my understanding (thats a budget not raid setup)

proxy workflows are always worth a look too

setup's relay depend on software if your trying to relay optimist your mac for speed on a budget
adobe apps tend to (or used to) not take advantage of the GPU to the same extent as FCX but (last time i used FCX) on FCX you cant chose a dedicated scratch drive.

if your doing 4K a rule of thumb is to get a GPU with 3-4GBvram (or more) but the actual speed of the gpu (on adobe) is less important once you get to a point you hit massive diminishing returns.
on the same point adobe apps tend not to scale past 4-6c (apart from final export) even AE is less multi core friendly now.
I think adobe is combining the code for AE and PP to have a single code base to update and help round trips (correct me if im wrong) and since that happened AE's been using less cores.
but i may be wrong there im still on CS6 and out of date on adobe new's.
FCX tends to use the gpus much more and trans codes all video to a proxy codec on the fly but some people have problems with the interface.
this is worth a look
https://www.pugetsystems.com/all_articles.php
they have a lot of articles on adobe apps with different cpu/gpu setups

like this one on PP and storage optimization
https://www.pugetsystems.com/labs/articles/Adobe-Premiere-Pro-CC-2015-4-Storage-Optimization-854/
and this on on PP multi core utilization https://www.pugetsystems.com/labs/a...o-CC-2015-Multi-Core-Performance-Update1-806/
see that after 4-6cores for most jobs there's no real gains
 
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JoSch

macrumors 6502
Feb 22, 2013
331
105
  • 3 Gigs of RAM is nothing. 12 Gb is the minimum for video editing. If you can, go to 48 Gb or more
Really? I'm editing with 10GB just fine. My memory pressure isn't even rising when editing. So under which circumstances do I need 12 GB of memory for editing?
 

orph

macrumors 68000
Dec 12, 2005
1,884
393
UK
10gb is super close to 12gb, relay depends on your workflow, also go's up a lot of your doing a lot of round tips.
I think some people are doing more complex projects.

32Gb is fairly cheep now
 

JoSch

macrumors 6502
Feb 22, 2013
331
105
What is connection between flashed and web drivers? I'm sure, web-driver should be used in any way, as it has better CUDA support.
Flashing gives you a boot screen. Web drivers give you a functional OSX.
 

mastermamo

macrumors member
Jan 14, 2017
85
36
Cape Town South Africa
Really? I'm editing with 10GB just fine. My memory pressure isn't even rising when editing. So under which circumstances do I need 12 GB of memory for editing?

What footage res are u using? For 720/1080 8-12gig is fine but for 4K etc u need much more RAM. Also the timeline edit doesn't need that much ram compared to the render. For rendering at high speeds there's no substitute for the max RAM your machine can support
 

orph

macrumors 68000
Dec 12, 2005
1,884
393
UK
@Acden web drivers from nvidia are only needed on GTX9xx cards (and some of the top end GTX7xx cards)
the gtx680 will work on native drivers, can be user flashed to but it's not needed.
flashing gives boot screens
cuda driver gives cuda

helps to know more info about the kind of projects you want to work on, are you doing video for web/indie films/events/weddings and if you know what kind of video you will be working with.
will you be doing lots of motion graphics, grading, 3D work 1080p or 4K.

4x8GB sticks are a safe start, you can add 4 more later if you want.


:cool: this is tempting me to get some new faster drives
 

JoSch

macrumors 6502
Feb 22, 2013
331
105
What footage res are u using? For 720/1080 8-12gig is fine but for 4K etc u need much more RAM. Also the timeline edit doesn't need that much ram compared to the render. For rendering at high speeds there's no substitute for the max RAM your machine can support
Yes, I know that, but OP does not. I didn't notice anyone asking him, what footage he is editing.
Yes, one wants as much as possible RAM for editing, if you have big, long, etc. stuff to edit. But if he is only editing his VHS grabs, then it's possible to go - say - 8GB and later upgrading to more. The cMP has plenty of RAM slots.
 
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rueyloon

macrumors regular
Sep 24, 2013
187
11
What footage res are u using? For 720/1080 8-12gig is fine but for 4K etc u need much more RAM. Also the timeline edit doesn't need that much ram compared to the render. For rendering at high speeds there's no substitute for the max RAM your machine can support
I'm curious about this claim as I have been monitoring my RAM usage by the system and I don't seem to see it under any memory pressure. I'm running 32gb now.
 
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JoSch

macrumors 6502
Feb 22, 2013
331
105
I'm curious about this claim as I have been monitoring my RAM usage by the system and I don't seem to see it under any memory pressure. I'm running 32gb now.
I'm curious, too. Even when I'm rendering with NeatVideo on an longer video, I didn't have any memory pressure on my 10GB cMP.
 

Acden

macrumors member
Aug 13, 2016
55
2
Russian Federation
@Acden web drivers from nvidia are only needed on GTX9xx cards (and some of the top end GTX7xx cards)
the gtx680 will work on native drivers, can be user flashed to but it's not needed.
flashing gives boot screens
1) cuda driver gives cuda

2) helps to know more info about the kind of projects you want to work on, are you doing video for web/indie films/events/weddings and if you know what kind of video you will be working with.
will you be doing lots of motion graphics, grading, 3D work 1080p or 4K.

3) 4x8GB sticks are a safe start, you can add 4 more later if you want.


:cool: this is tempting me to get some new faster drives

1) But nvidia Cuda driver requires Nvidia web driver! Isn't it?

Also, I want to mention that I have NV 285 1GB Apple original video card. And it requires web driver for Cuda support!

2) Now I'm working on VHS. And My Mac Pro 2008 3.1 is very-very slow. I tried to change system to SSD, another Videocard. But no, it slows even in web-browser. So I decided to buy PCIe m2/SSD adapter with SAATA-III ports, but not sure if it is the problem.

Soon I will start to edit HD projects like weddings, concerts, etc.

3) Isn't it too much to start? I have 6GB 800Mhz right now. And it is overheated, I think maybe problems with slow working in this, or in amount of memory. I don't know any software to test (Apple tests are passed!)
I want to buy either 16GB or 32GB of RAM. But I'm not sure if I need more than 16?!
 

orph

macrumors 68000
Dec 12, 2005
1,884
393
UK
1 no
2 not informative post a topic with real info if you want help
3 you only need as much ram as you need, learn to use activity monitor.
how much ram i need is a bad question, what you need to do is watch activity monitor when working to see if you need more or not.

every time some one says that some one will say 64GB/128GB which is nice but not helpful, you only need sufficient ram extra ram wont give you a speed boost but to little will.
 

Acden

macrumors member
Aug 13, 2016
55
2
Russian Federation
Yes, you right, that nobody says. But, I have 6GB Ram now, and it is for sure needed to add more (always whole memory is exceeded when working). But I don't know how much - 16 or 32 or even maximum, 64...

I'm working on MBP Core i7 2.4 with 16GB of RAM, actively in web. And all of the 14-16GB are not free...
So, I'm not sure If I would need 32. I mean I already have 6GB + 16 buy, it is 22GB, maybe it would be better then 16 and enough to spent money on.
 

nigelbb

macrumors 65816
Dec 22, 2012
1,150
273
Any spare RAM will be used for file caching so even if the application only needs 16GB putting 32GB in the machine will see a performance boost. The 4GB 667MHz FB-DIMMs pulled from Xeon servers are so cheap on eBay now that you may as well put in a full 32GB in a 2008 Mac Pro 3,1.
 

Greyhound

macrumors newbie
Original poster
Jan 23, 2017
6
1
Switzerland
Hello again

its been a While since my last post, some busy months behind me...

Thxs for all the Answers, and Advices :)


However there are still some questions Arround:

Can somenone explain me the hole CPU Heatspread remove story?... (ist it compelling or not...)

Where do you guys by your Serverpulled Ram? (Links?) got stuck in research...

Im still not sure about the GPU... for sure 2 GPUs is a must because of Videoeditting... but any further i have no idea...

I read a lot about the scratch disk... How big should i size it?


Thxs for all your Answers and Help appreciate that

greets from Switzerland:)
 
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Gazember

macrumors member
Apr 5, 2017
51
19
If you use Adobe for video editing you are really better off using Windows 10. Cheaper and better performance, all at the same time.
 

h9826790

macrumors P6
Apr 3, 2014
16,656
8,584
Hong Kong
Hello again

its been a While since my last post, some busy months behind me...

Thxs for all the Answers, and Advices :)


However there are still some questions Arround:

Can somenone explain me the hole CPU Heatspread remove story?... (ist it compelling or not...)

Where do you guys by your Serverpulled Ram? (Links?) got stuck in research...

Im still not sure about the GPU... for sure 2 GPUs is a must because of Videoeditting... but any further i have no idea...

I read a lot about the scratch disk... How big should i size it?


Thxs for all your Answers and Help appreciate that

greets from Switzerland:)

It's easy to get cheap DDR3 ECC RAM on the internet. There are lots of sources out there. Just pick the one that have good review, and the cheapest for you (better have return policy as well). Since the ECC RAM cannot be used on normal PC, any the companies need high end server already move to DDR4 long time ago. The DDR3 ECC RAM has supply much much more than demand. In other words, it's cheap.

Real 5,1 has NO NEED to remove the CPU IHS.

Dual GPU is NOT a must. Single GPU can work fine even for 4K video editing. You don't even need a super powerful GPU if use proxy properly. Of course, GPU can speed up the work flow, just not a must.

No sure about scratch disk size, but it should be depends on your projects size and RAM size.
 

troybogert

macrumors newbie
Aug 30, 2017
3
0
I do post production and visual effects for clients ranging from documentaries to feature films. Have been doing this for years. Here's one of my setups which might point u in the right direction. I have a few more elaborate setups but will use the one below as it's more apt for what you might need.

For more intensive work I use Quadro Cards and/or a 8 node render farm.

Mac Pro 5.1 3.03Ghz 12 core
64 gig DDR3 1333 RAM
Samsung 850 Evo SSD OS drive
OWC Electra 6G SSD (scratch disk)
4x3TB WD Caviar Blacks (storage)
6 x G-Tech 4TB Pro Drives Slaved (storage)
Nvidia GT120 Boot GPU
Nvidia GTX 780Ti main GPU
Sonnet USB3.0 card
4 port eSata PCI card
4xDell U2713H screens

Software:
Premiere CC2017
AE CC2017
Avid Media Composer
Cinema 4D
Houdini
Real flow
etc etc

I also lecture Adobe products and Beta test for them extensively and this particular setup manages 4K playback (half res) and full 4K renders quite comfortably.
Not a costly upgrade path but one that has suited my needs for small to medium projects pretty well thus far

Hello,

I have a similar computer. I am editing in Media Composer 8.4. Here are my specs:
Two 6-Core Intel Xeon at 3.46 GHz 12 cores
Memory: 64 GB DDR3 ECC Speed: 1066 MHz
NVIDIA GeForce GTX 680 running 3 monitors. 2 Sceptre 1080p and 1 4k BenQ

I have a question about your setup as I am preparing for a documentary edit and want to streamline my workflow.

Do you use a scratch disk for Media Composer? I have never heard of that.

Are your 6 x G-Tech 4TB Pro Drives Slaved (storage) plugged into the 4 port eSata PCI card? Are they daisy chained? Do you have any playback issues at 1080p?

Why are you using a Samsung 850 Evo SSD OS drive for your system hard drive? Does it improve performance?

Thanks!
 

OS6-OSX

macrumors 6502a
Jun 13, 2004
948
756
California
Hello,

I have a similar computer. I am editing in Media Composer 8.4. and I am preparing for a documentary edit and want to streamline my workflow.

Should be pretty straight forward:
1. Use AMA to avoid importing and transcoding
2. If the footage is Sony’s XAVC-S codec then you will need to update to MC 8.9.1
3. If the footage is Panasonic's GH5 read here http://community.avid.com/forums/t/180517.aspx?PageIndex=1
4. Just make sure you have the latest AMA plugs by Nablet
5. If 4K-6K your drive speed should be up to par (As you know there is no CUDA or GPU acceleration, yet!)
6. Use yellow/green if necessary :cool:
 
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