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On 11/05/2010 21:26, Michael Watterson wrote:
> you must have extremely large photos and very poor applications. I do 
> use a 1G RAM Desktop PC for most video edit now, but even with 512M my 
> laptop is fine. I've never run out of RAM editing photos in last 10 years.
> 
> Some applications need 64bit. Video Editing and photo editing certainly 
> don't.

I disagree: lets say we have a 15 MPixel camera (15e6 pixels) * by 4
bytes per pixel * 3 layers. That leaves a memory footprint of 180 MiB.
With 2GB of RAM--and ignoring the fairly significant amount of RAM used
by anything other than pixels--we can only open 11 images at a time. I
don't know about you but I work on 20+ images at a time fairly often.

Further, take a 2Mpixel HD video stream * 4 bytes per pixel and you get
8MiB of RAM per frame. At 25 fps, we have 200MiB per second, so 5 seconds
of video can be held in RAM at a time, again ignoring sound channels' and
other applications' usage. I don't delve in video editing much but I can
imagine that having to load video in 5 second chunks comes with a hefty
performance penalty when trying to edit big sections at a time.

I'm pretty keen on the 64bit jump if the software can be caught up. I'm
appalled to hear about the problems the OP had with trying to run 32bit
applications on "cheap" windows, however!

- -- 
Brendan Gillatt | GPG Key: 0xBF6A0D94
brendan {a} brendangillatt (dot) co (dot) uk
http://www.brendangillatt.co.uk
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