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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

mac pro configuration for color

Mike Manus

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Hello, Red and FCP noobie here (Media Composer and DS editor), so I have some basic questions about building a system. Hopefully they're easy questions, but I couldn't find answers while lurking.

I am going to editing a feature shot on Red in 4K in July. I'm thinking I'll be transcoding to ProRes for offline, and using the original Red files for online color correction in Color to finish at 2k: basically workflow 2 in the Red Final Cut whitepaper.

We'll be getting a Mac Pro for this and debating the best configuration. While any decent Mac Pro should be good for the FCP offline, I'm concerned about Color. I figure we should get the new 8 core. Upgrading the default 2.26 processors to either 2.66 or 2.93 is pretty pricey. Is it worth it? Will it make much difference? Same question about going from 16GB RAM to 32GB. I doubt that would make much difference, but I wanted to check. Does Final Cut or Color even make use of 16GB RAM, let alone 32?

What about the graphics card? There's NVIDIA GeForce GT 120 512MB or ATI Radeon HD 4870? Which is best for Color? Or is there a different card to get?

Do we need hard drives that are any faster than graids? I was originally thinking that would be fast enough since redcode's data rate is 36 MB/s. But if we decide to output uncompressed HD for final mastering, could a graid3 handle that with an esata card or extender cable? I know it's not supported but since it's only playback of a final already edited sequence, I'm thinking it could pull it off.

What output card for monitoring would we need? I have an Aja IO HD, but that wouldn't work with Color in HD. Do we even need one? If we have a monitor with DVI or HDMI, can we use the Mac Pro's graphics card output? If the monitor has component inputs or HDSDI, what are the best options there?

I know it's a lot of questions, but any help or opinions I could get would be great.
 
You'll probably want the ATI Radeon HD 4870, it's much more powerful, and, since color is GPU dependent, you'll get lots of bang for the buck.
 
I second that, plus you'll want lots of RAM for any transcoding to make RR or Clipfinder work really fast. CPU cycles are less importan than RAM or GPU.

If you are going to work with REDcode and ProRes only, disk speed is not very critical. Even a fast SATA will work, and a small RAID is nice to have.

If you want to work uncompressed, DPX or the like, go for a fat, speedy RAID.
 
Although the 4870 is much more powerful, some of the core image benchmarks coming from it are abysmal, being beaten by the GT8800:

http://www.barefeats.com/nehal06.html

As usual, Apple's drivers are killing this cards potential. Hopefully the drivers will improve over time for the 4870 over the next few point releases of Leopard/Snow Leopard (though note often things get worse as much as better, Apple's QA for video drivers is really poor). Do note people are managing to run the newer PC version 4890s on Mac Pros and NVidia will be releasing their GTX285 for Macs soon too:

http://www.engadget.com/2009/04/29/nvidias-geforce-gtx-285-coming-to-macs-in-june/
 
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