Configuring An iMac For Video Editing

Posted on by Larry

I bought a new 27″ iMac when they went on sale Friday, specifically for video editing. And, because I’ve had a lot of requests recently, I wanted to tell you what I bought and why.

WHAT SIZE IMAC?
I bought: 27″ iMac

All versions of Final Cut Pro and Adobe Premiere like large screen sizes. It allows us to see more of the image with more detail. In my case, because this system is exclusively for video and audio editing, the bigger screen was an easy decision.

I also have a second 27″ Apple monitor sitting unused on a shelf that I want to experiment with. I’ve generally found dual monitor displays at client sites to be more trouble than they are worth. But, I’ve never worked with one for a long period of time, so I’m looking forward to seeing how this new setup works.

However, for my webinars, I use a smaller 21″ Mac, because I find software easier to learn when the screen sizes are kept smaller.

CPU SPEED
I bought: 3.4 GHz, Quad-Core Intel Core i7

CPU speed is important, but it isn’t everything. The speed and connection of your storage play a much bigger role in overall system performance than the CPU. So does the speed of the graphics card.

In the old days, the CPU did all the work. Today, that load is shared between a variety of components. For this reason, I decided to get a fast CPU, but use the money I saved in not buying the fastest CPU to getting faster storage. Especially for multicam work, faster storage provides more benefits than a faster CPU.

Given the speed of today’s processors, just about any CPU is more than fast enough to edit any flavor of HD video.

FUSION DRIVE
I bought: 1 TB Fusion drive

I upgraded to the 1 TB Fusion drive. This new technology from Apple combines the speed of SSD (Solid State Drive) with the storage capacity of standard spinning hard disks.

However, the Fusion drive delivers the fastest speeds when it is accessing the same material over and over. This means that it is optimized for the operating system and applications. Since we are constantly changing media, a Fusion drive won’t delvier the same level of performance with our media.

I have long been a fan of storing media to a separate drive, rather than on the boot drive. In the past, this was primarily for performance reasons. Now, the internal drive is faster, but an external drive allows far more storage and flexibility.

I strongly recommend using an external RAID system, connected via USB 3, or Thunderbolt (more on that in a bit), because it will store more than any single internal drive, provided more than enough speed, protect your data using the data redundancy in the RAID, and allow easy upgrading by simply swapping out devices.

For me, the ideal situation is the Fusion drive for the OS, and an external RAID 5 for all media.

RAM
I bought: 16 GB RAM

I upgraded to 16 GB of RAM. Both Premiere and FCP will use all the RAM you have available. So will video compression software. 16 GB is a nice balance between performance and price. And, unless you are creating some truly massive edits, you won’t notice enough difference between 16 and 32 GB of RAM to justify the additional cost.

GRAPHICS CARD (GPU)
I bought: NVIDIA GeForce GTX 675MX

This was a harder decision. Both Premiere CS6 and Final Cut X take advantage of the graphics card. However, in the CS6 release, Adobe only initially supported the graphics cards in the MacBook Pro. (Traditionally, Adobe only supports nVidia cards and all the Apple gear uses ATI.)

Now that the new iMacs include nVidia, I’m hoping (but do NOT know for sure) that Adobe will quickly support the graphics cards in these new Macs. I’ve sent a note off to my friends at Adobe to see what I can learn and will let you know what I find out.

NOTE: Even if Adobe doesn’t support the graphics cards, Premiere Pro CS6 will run perfectly OK using just the CPU. It won’t do as much, or work as fast as when the graphics card is involved, but you can still use Premiere on these new systems.

This isn’t the fastest GPU that’s available, but it is the second fastest. Again, for me, this was a balance between performance and price. Video editing requires a fast overall system, balanced amongst all the major components.

GPU RAM
I bought: 1 GB GDDRS

The RAM in a graphics card determines how many elements, for example frames of video, it can store for processing.

3D software and Motion makes extensive use of GPU RAM. However, video editors are using it principally for pixel painting. Since I am an editor more than a motion graphics designer, I don’t need the extra GPU RAM. So, I stayed with the base level of 1 GB.

KEYBOARD AND MOUSE
I bought: Apple Keyboard with Numeric Keypad (wired) and mouse (wired)

Wireless gear is great, until your system starts acting up. At which point, you need a wired keyboard for maintenance. Also, there are a number of very useful keyboard shortcuts in all my applications that take advantage of the keypad.

If I were shooting a television commercial, I’d use a wireless keyboard and mouse because it looks cool on camera. Because I am editing television commercials, I’m using a wired keyboard and mouse because they work great, decrease my stress, allows me to easily do maintenance on my system, and don’t require batteries.

EXTERNAL STORAGE
I bought: (um, nothing yet)

Since ProRes 422 is the default video codec of Final Cut Pro X, and a great codec to use for Adobe Premiere, I need storage that is big enough and fast enough to handle this format.

Prores 422 requires about 18 MB/second of data transfer between the computer and storage. Because much of what I shoot is 3-5 camera multicam projects, this means I need to move about 100 MB/second of data.

The problem is that FireWire 800 tops out around 80-85 MB/second. Gigabit Ethernet tops out around 100 MB/second, assuming your switch and server can handle the speeds, and most data switches that cost less than $200 can’t handle that much data over a long period of time.

NOTE: A “switch” is a device that allows multiple computers to connect to the internet or a server by switching data from one device to another. These are made by NetGear, LinkSys, Cisco, and others. A “server” is a computer with a large hard disk or RAID that allows multiple computers to share the same files. Servers can be a simple as a Mac Mini, or as complex as an Avid Isis system.

Larry

This means that I need storage that connects via either USB 3, or Thunderbolt. (This is an iMac, which means that plug-in cards are not an option.) Yes, I could buy converter boxes – for example, from Thunderbolt to eSATA, or mini-SAS, but these boxes cost several hundred dollars apiece. If I were integrating existing hardware, this would be an inexpensive way to go. However, I’m buying all new gear.

It is at this point that I’m puzzled about why storage vendors are having such a hard time shipping RAID 5 Thunderbolt-based storage devices. Yes, Promise Technologies is out there, and they recently dropped their prices. But where are the traditional storage vendors? G-Technology and LaCie both offer RAID 0 (which is fast, but provides no data safety in the event one of the hard drives in the unit dies), but no RAID 5. Drobo was way late in shipping their Thunderbolt storage and I haven’t had a chance to look at the shipping product. And, as far as I know, traditional RAID vendors haven’t even announced RAID 5 storage with Thunderbolt connectivity.

It is troubling to me that this new format is taking so long to take shape and appear in quantity in the market. Is this a licensing issue? Technical or integration issues? Are there hidden problems inherent with the Thunderbolt format that are holding things up? I have been inquiring about this for months and have not gotten a clear answer from any vendor.

So, I decided to hold off buying storage until I could do more research. My iMac is still a month away from shipping, so I have some time to figure this out.

ARCHIVING
I bought: (also, nothing yet)

Long-term data storage, today, means LTO tape. The problem is that all the tape vendors – Cache-A, The Tolis Group, XENDATA – provide solutions much closer to $10,000 than to $2,000.

This is the other big issue in our industry: how do we protect the assets that we shot for 5, 10, 20 years into the future? If you are a major studio, money is no object and there are many solutions. However, if you are an independent producer, or small production company, dollars are hard to come by. There are no good archiving solutions that are reasonably priced.

I spoke with the three founders of Ultrium, the consortium of HP, IBM, and Quantum that invented LTO, about when they expect to provide Thunderbolt-based LTO storage? All three said that they had nothing to announce and the consortium did not have a position on how devices connect to computers.

Again, we could take existing gear – currently costing $7,000 – 9,000 and use Thunderbolt converter boxes to connect it to an iMac, but, this simply takes a unit which is already too expensive and makes it even more unaffordable.

NOTE: The Tolis Group announced yesterday new gear aimed at creative producers. The ArGest line supports both LTO-5 and LTO-6, and the Thunderbolt version, which still requires a converter box, starts at $6,898. (Information about this new product is not yet on their website.)

I’ve said this before and say it again: The LTO vendor that can figure how how to provide a direct-attached LTO drive that works with a Mac and connects directly via Thunderbolt for less than $4,000 is going to make a lot of money.

For now, I REALLY need some way to archive my media. but none of the units out there support either my budget or my computer.

SUMMARY

Buying any computer is always a trade-off between dreams, performance, and budget. I’m looking forward to getting my new system. I’m also looking forward to figuring out what I can use for external storage. To me, THAT is the key to successful video editing – storage that is large, fast, secure, and affordable. That, and some way to back it all up.

I’ll keep you informed as I decide what to add for the remaining pieces. As always, feel free to share your opinions.

Larry


85 Responses to Configuring An iMac For Video Editing

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  1. Paul says:

    Larry – You mentioned you saved money by not getting the fastest processor, but mentioned you got the 3.4GHz. I think that is the fastest for the 27″, isn’t it?

  2. Mitch Lewis says:

    Larry – I would suggest you consider the new Drobo 5D. They have a 6TB kit for $1250 (it’s actually 4TB) It has two Thunderbolt connections, is RAID 5 and the best part of all, you can simply insert another drive as you start to run out of room. (or replace a smaller drive with a larger one).

    We’re then using a 4TB G-Technology G-DRIVE for backing up the system.

    • Larry says:

      Mitch:

      I am considering the Drobo 5D. I’ve been a fan of Drobo for a while; however my concerns about them are two-fold:
      1. They have never published any performance specs on their latest gear, even though their website says they will publish specs prior to shipping
      2. Their Drobo 5D and Drobo Mini FAQ pages are seriously out of date.

      Not maintaining a website for shipping hardware is a troubling sign to me.

      Larry

  3. Don says:

    Good article. I think what’s not being mentioned is what everyone’s concerned about, and that is, what’s happening with the Mac Pro. If we’ve learned any lessons from FCP you’d have to doubt there will ever be a Mac Pro as we’ve known it, and need it. Apple’s ‘re-imagining’ of ‘pro’ is consumers who want ‘pro-like’ features that are easy to use. Apple no longer makes real money in the actual pro market. We all agree that Apple is now a consumer electronics company — really a cell phone company — right? Look at where their revenue comes from if you still don’t believe this.

    Thunderbolt RAID is probably in the same kettle as the Mac Pro. It’s a technology that really only excites video pros. No one else needs that kind of speed, so third parties aren’t putting anything into it — and it’s really only available on Macs, further reducing the market. Still, there has to be a profitable niche for these devices — but makers are probably, like potential users, waiting to see what happens with the Mac Pro. Otherwise they’d be betting that video pro shops will edit on iMacs and Mac laptops, which from what I’m hearing on other forums isn’t likely. I’m sure makers are hearing this too.

    LTO seems more like a big shop solution, and makers have their customers already. Why develop something for shops that don’t have large backup needs, and corresponding budgets? And niche-ing for ‘iffy’ Thunderbolt presents the same business caveats as above. Personally I’ve done OK using a Firewire base and bare eSATA drives for off-site backup. Inconvenient? Somewhat, but cost effective and not bad if you’re doing backup in 2 – 3 TB chunks overnight.

    • Larry says:

      Don:

      I’ve adopted a “wait-and-see” attitude on the MacPro. Developers and media creators make the programs and media that makes the iPhone successful. It could be argued that creating a high-end system for the pro user benefits Apple’s consumer products. That’s my personal point of view. Others, however, disagree. Only time will tell who’s right.

      As for Thunderbolt, interface cards are starting to appear for PCs, so that market has the potential to expand, though, I suspect USB3 to be the protocol of choice on the PC.

      Larry

  4. Wayne Conover says:

    Dear Larry:

    After reading your most recent newsletter, I though I would share my solution for connecting a LTO-5 tape backup to my 15 inch MacBook Pro Retina. The whole system was only about $3K!

    I purchased a Tandberg 3530-LTO drive unit for $2,228. I added a Sanlink 4H Fibre Channel-to-Thunderbolt adapter for $718. A $41 plug-in card is required to allow connection of the a fibre cable to the converter (850NM OXIDE VCSEL 1X/2X/4X FC 4.25 GB/S/ Transceiver – 4.25 Gbps – Wired – Plug-in module). A 16 foot Tandberg Fibre cable added $84 for a total of $3,071

    A Thunderbolt cable from Apple will add $49 to the price. Tapes are about $53 apiece.

    I set the whole thing up in about 5 minutes. I installed Retrospect Desktop on my MacPro and it instantly recognized the drive and proceeded to perform a backup of my video files without a hitch. A restore to another drive also worked flawlessly.

    All parts were purchased from zones.com with the assistance of my sales contact Marjory Dodd.

    Hope you will find this info of value.

  5. jolyon says:

    Hi Larry, thanks for the article.

    I am curious as to why you are holding back on a Promise Technologies Raid system. Is it to do with price, reliability or something else?

    I’m about to do the same as you and get an iMac 27″ plus Raid external drive so you have piqued my curiosity…

    Cheers,
    Jolyon

  6. Ryan says:

    Larry,

    I ordered the same 27″ iMac with the 3TB Fusion Drive, 32GB RAM and GTX 680MX.

    I work with a 50/50 split between video editing/motion graphics and 64-bit applications can use all the RAM you can throw at them. Final Cut Pro X and Adobe After Effects are my primary editing applications, I’m starting to venture into 3D modeling applications.

    As far as production storage goes, I purchased the 6TB Promise Pegasus R6 Raid. I was torn between that and the Drobo 5D. The decision came down to the Pegasus has had more time in the world, and the Drobo 5D hasn’t been tested in heavy production that I could find. I also reached out to other industry professionals that I know, and they endorsed the Pegasus.

    Thanks for the great articles. I look forward to your thoughts on your new system.

    Ryan

  7. Martin says:

    Larry … I am just about to follow all your recommendations, but am stalling at the same issues:

    – which Thunderbolt RAID to get
    – how to back-up

    I am glad to learn your thoughts once it has cleared somewhat! Thanks as always !

    Regards
    Martin

  8. Breht says:

    Larry, my suggestion for external storage is to go with the Drobo 5D. Mine actually arrives today from B&H. I bought it during Cyber Week when it was $100 off (normally $849 got mine for $749). I think they did something very good with this new solution allowing for both thunderbolt as well as USB 3.0 but also adding in a mSATA SSD slot underneath the unit to help with speed ver much like Apple’s Fusion Drives but rather than allocating small amounts of data like 8 or 16 Gigs, you can allow whatever size SSD you install into the Drobo 5D. As you know the Drobo allows you to mix and match drives, I plan on filling mine with all 4TB drives (7,200rpms). So far I’ve ordered two but as my storage needs tend to grow, I’ll order another 4TB here and another there. As a matter of fact, I may back up the stuff I have on my G-Tech G-Safe to the Drobo 5D and just pull the two 3TB’s out of there and add them into my Drobo (2 – 4TB’s and 2 – 3TB’s) until I need more storage. The additional benefit is further down the line being able to purchase another Drobo 5D box and just adding it to the Thunderbolt chain. I don’t have to sweat about Pegasus or other traditional RAIDs where I have to buy the box with all the slots populated, I can grow as my needs grow. I did a lot of research on the Drobo’s and I think they’re about to corner this market. They’re affordable and they’re now finally Thunderbolt speeds and with an SSD (they recommend 32 or 64 but I went ahead and bought a 128 from Amazon for $99) this thing should blaze away. They claim it can handle uncompressed HD so I’m sure it should be able to handle your 3-5 camera 100MB/s needs. I have been looking at the iMac and have built it out a few times. Another thing you should always consider is crucial.com, they sell their RAM for a fraction of what Apple charges. You could go 32 Gig’s for a fraction of Apple’s rape rates. Although I’ve recently been wanting to upgrade my current i7 MacBook Pro to a Mac Pro, I need something in the interim and I believe the iMac would be the right solution but for whatever reasons, Apple is tripping on adding USB 3.0 and Thunderbolt to their flagship Mac Pro. Thank you for this article and hopefully you will take a look at (and maybe even review) the Drobo 5D for your storage solution needs.

  9. Breht says:

    That’s great to hear! Can’t wait to read it 🙂

  10. Fred says:

    I’ve been using USB 3 on the PC side for some time and the issues that Apple is having with it are not new and not Apple-exclusive. USB 3 is notoriously dicey. If you try to use a hub with it, it will become completely unreliable. Some early interface chipsets in the drives are very fussy with speeds ranging all over the map. I’ve had good luck lately with the newer stuff and the small Buffalo drive I got with both USB 3 and Thunderbolt seems to perform pretty well both ways on my Mac Mini. But my thinking is that Apple won’t have answers on the USB 3 issues for you because they aren’t specifically Apple’s issues.

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