What's that extra SDRAM gonna give me?
Bit of a hardware question, but specifically relating to FCP...
I have been editing SD footage on a PowerBook G4 (1.25) and it's been OK...slow but OK!
I am now about to upgrade, (finally!) to one of the new MacBook Pro's.
I tried the 2.5GHz in my local Apple Store and it was crunching HD applying real time effects the like of which I had not exprienced. Fantastic.
They did not have the 2.4GHz (with half as much video RAM) version to try, which is the one I am really i the market for...
I suppose the question is; What real world differences am I gonna notice with the lower spec video card RAM? An extra $600 ( in UK terms) seems a **** of a lot for the extra, unless I am gonna notice a difference
Sure, I am getting and extra 50 gig HD space and 100mhz on the processor...
But that extra SDRAM, what am I going to notice, or miss? Editing, rendering speed? Encoding?
The one I tried was amazing and I suppose it would be compared to what I am currently using, BUT I don't want to de disappointed after all this time....and I'll have to wait a few more weeks for the extra cash!!!!
Any snippets of advice gratefully received...
The three magic words are, "It All Depends".
Different people will give you totally opposing, yet true, advice depending on their situations.
In an ideal world, where money is of no importance, bigger is probably best. However, most people live in the real world where there are financial constraints.
If you are a video professional whose very survival is at risk, you will naturally get the "best and biggest".
However, if saving a few seconds here and there is not so important you will reach a compromise.
Look at the equipment I am using. Prehistoric ! Yet it happily runs FCE 3.5 and FCP 5.1.4. Admittedly it won't let me use Color or Motion.
The cheap MBP should be easily capable of handling everything you require.
Incidentally, if video is just a sideline, you may be better off getting FCE 4 for about a fifth the price of FCS 2. It is the same program minus a few of the unnecessary bells and whistles and less the extra applications of the FCS suite.
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I/O Sub-System - What is That?
I use the term “I/O sub-system” quite often, and some wonder what that is. Usually, I will give a bit of detail, but probably need to take things to a higher level, and also explain why the I/O sub-system is important to video editing. The term I/O is Input/Output, and the concept of the “sub-system” encompasses everything about the HDD’s (Hard Disk Drives). Basically, used in these fora, the I/O sub-system refers to the HDD’s, and all the specs. of those HDD’s.
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The number of physical HDD’s (not partitons)*
HDD capacity/size
HDD space used, and remaining (defragmented)
Format Type: FAT-32, or NTSF**
The speed of the HDD, i.e. the RPM performance of the HDD
The controller type, say SATA II, and this will specify the connection speed
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For Video editing, it is just about a minimum to have 2 physical HDD’s, splitting the I/O load over the separate, physical HDD’s. Having 3, and splitting the I/O load over all 3 is even better. For even greater performance, one can add additional HDD’s, and allocate them for even more spread.
With a 2 HDD I/O sub-system, one would allocate in this manner:
C:\ OS, programs and probably the Windows Virtual Memory [Page File]
D:\ Project files, with Assets, Scratch Disks and Exports
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This brings us to additional reading, and to a Q & A session:
* See Partitions, a No-No for Video Editing
See Harm on HDD Setup for Video Editing
See Harm on To Raid, or Not to Raid
See Windows Virtual Memory, as the Page File requires I/O interaction, and how you have this set up, can affect things on several levels.
** See Converting FAT-32 to NTSF
Question: Can I use external HDD’s in my I/O sub-system?
Answer: yes, but the connection type will be important. USB 2.0 connections are very, very slow, and because of the speed of most computers, and the great deal of read/write activity required by an NLE, the connection is often too slow just to perform, leading to read/write failures, including the dreaded Delayed Write Failure, which can totally corrupt the external, requiring full low-level reformatting and the loss of ALL data on that HDD. USB 2.0 HDD’s are great for archiving data, but not much more. FireWire 400 is better, but is still very slow. FW-800 is adequately fast for editing to/from, and is stable. The use of eSATA is even better, and will equal in real-world terms, about what one gets with internal SATA II HDD’s.
Question: What about SSD drives?
Answer: They are fast, but still cost a lot for the storage, and that is still limited. They really help with boot-up speed, but then how often does one boot-up the system. In time, and as the capacity goes up, and the cost comes down, they will very likely replace the mechanical HDD’s. They do bear watching, but beyond the boot disk, are not that well-suited for additional drives for video editing. That will likely change in the future.
Question: Do I really need to frequently defragment my HDD’s?
Answer: Absolutely - see above. After every editing session, I will run a defragmentation program, and will do so weekly, even if I have not been editing.
Question: Can I edit video on my laptop with a 40GB HDD?
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Question: Does the HDD’s speed really matter?
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I'm an experienced Oracle DBA.
The tech staff in organizing VLDB systems (very large databases) is quiet similar to what you have showed here.
May I suggest, Perhaps, for your readers benefits ( especially those who do professional large scale editing projects) I think it will be a good idea to elaborate about some modern storage systems architectures like NetApp , EMC etc.
Using a modern storage systems can solve much of the I/O problems, and it seems to me after reading this article that me and you are dealing with the same IO problems: large amounts of data who needs to be wriiten and accessed very fast.
Thank you for your effort.
Sincerely Yours,
shimon. -
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