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How many cores is enough for Vegas 9
Posted by John Lenihan on August 31, 2010 at 1:42 amSo I am looking at a new editing workstation and see that Intel i7 has a six core processor with hyperthreading looks like 12.
What is the most threads that Vegas uses at one time, and during which process is it? Does anyone have that kind of information?
Thanks
John Lenihan
LeniCam Video Productions
John Lenihan
LeniCam Video Productions
https://www.lenicam.comNigel O’neill replied 14 years, 5 months ago 6 Members · 9 Replies -
9 Replies
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Tim Neighbors
August 31, 2010 at 1:55 amI’m not sure what the answer is, but my talks with Sony support in the past led me to believe that you won’t get a whole lot of help from multi-cores when editing in Vegas because video playback is a single thread (?). You’ll see the benefits of more cores when rendering though.
Sorry I’m not more of a guru, but hope that contributes something. I’m curious to know the answer too. -
Tom Edwards
August 31, 2010 at 4:34 ami have a brand new amd six core running. vegas froze up a couple times.
rendering no faster than my dual core.
vegas is a beast not easily tamed -
John Lenihan
August 31, 2010 at 1:49 pmAre you running 32 bit or 64 bit? What operating system. Was Vegas Locking up on your dual core?
John Lenihan
John Lenihan
LeniCam Video Productions
https://www.lenicam.com -
Jeff Schroeder
August 31, 2010 at 2:28 pmI have a 64 bit machine with 12 GB of memory, i7 920. I am using 8 cores. Great with mpeg, AVC, etc. Slow with WMV. It all depends on how the codec was written.
Jeff
http://www.narrowroadmedia.com
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John Lenihan
August 31, 2010 at 2:31 pmCan you actually tell how many of the 8 cores are being used?
John Lenihan
LeniCam Video Productions
https://www.lenicam.com -
Jeff Schroeder
August 31, 2010 at 5:30 pm -
David Shirey
August 31, 2010 at 6:09 pmI also have the i7 920 at home which is a 4 core multithreaded to 8 and you can view the cpu usage bit hitting ctrl+alt+esc in Win7 and go to the Performance tab. At work I use an AMD Phenom II x6 which is six cores.
I feel like Jeff was right about rendering being dependent on the codec, because when I’m rendering mpeg2 or AVC it’s using all cores, but if it’s just doing the audio to AC3 it seems like it either doesn’t need or can’t make use of all cores just for that.
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John Lenihan
August 31, 2010 at 6:55 pmSo David,
You are saying that when rendering AVCHD you have obeserved Vegas utililizing all 8 cores. That implies it could use more cores if it had them.
John Lenihan
https://www.lenicam.comJohn Lenihan
LeniCam Video Productions
https://www.lenicam.com -
Nigel O’neill
September 2, 2010 at 3:39 amVegas 9 (32 bit and 64 bit) does address multi-cores during renders. The 64 bit version allows you to address RAM above 4gb. I use it when I receive the dread ‘out of memory’ error in Vegas. It has not let me down since. I should use Vegas 9 x64 all of the time, but it does not have support for some of the codecs I use.
Interestingly, when I rendered 2 equally large projects (1.25 hours of multi-cam footage) in Vegas 9 (32 bit), I was expecting render times to blow out a fair bit. They didn’t take any longer than for a single project! My Windows 7×64 i7 920 12gb RAM machine was running flat out… .
Unlike Vegas 9, DVD Architect 5 only appears to utilise 1 core 🙁
Intel i920, 12GB RAM, ASUS P6T, Vegas Pro 9 (X64), Vista x64 Ultimate, Vegas Production Assistant 1.0, VASST Ultimate S 4.1
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