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dynamic RAM tied to GPU VRAM ? correct value?
Hi there guys, I’m fairly new here and I’ve read and learnt a lot so far. I’m 26, from Spain and work for some local TV station, my main tasks being video editing and programming tools for CG artists.
I have a powerful workstation at my workplace with a top of the line Quadro 6000 Tesla card, I noticed that in Sony Vegas Pro 12 preferences the “Dynamic RAM” box by default always show a maximum of 6 GB RAM, exactly the RAM of the graphics board, the workstation system RAM is 64 GB. The thing is I’ve never fiddled with that setting since everything works fine even with multiple tracks and plugins…
but at home my computer is more gaming-focussed and have several GPU’s lying around I recently noticed with a GTX 660 Ti 3GB VGA that dynamic RAM maximum in Vegas is set to 3GB but actual value is only 150 MB… that leads to many crashes when using certain demanding plugins, so I raise that value to 1 GB – 1.5 GB and works fine… except that for some projects the computer runs out of memory when rendering (only 4GB RAM) and GPU-Z shows that the VGA is nowhere using 1.5 GB (900 MB at most), so Vegas is pushing system RAM for previewing instead of using the VGA RAM…
I’m using latest drivers and up-to-date original Vegas Pro 12 build 486 and Windows 7 Ultimate 64 Bit SP1, which value should I set Dynamic RAM to with only 4 GB system RAM at home? this was never a problem with Vegas Pro 11 and an older GTX 260 VGA, I just tested that PC and it uses VGA RAM instead of main RAM, won’t crash.
Help?
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5 Replies
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Preview RAM has nothing to do with the GPU RAM. It is only used when you hit Shift-B to generate a preview in RAM.
Steve Mann
MannMade Digital Video
http://www.mmdv.com -
thanks Stephen, yes I know what Dymanic RAM is for, I think I didn’t make myself clear my question is why is Vegas showing maximum value as the total VRAM installed in the VGA instead of the main system RAM (64 GB at my workplace).
Thanks for reading : )
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That’s a good question. On both of my editing PC’s here the max available is the installed RAM on the PC.
Steve Mann
MannMade Digital Video
http://www.mmdv.com -
I contacted Sony Spain and the Creative Software support told me it could be a bug on Windows 7 x64 Ultimate Service Pack 1 (even if it has been recently re-installed and fully updated) not “seeing” all that RAM and that I should try removing some sticks from the workstation and test with “just” 32 GB… oh well, I’m gonna miss that huge RAM Disk of mine if Vegas Pro 12 works better with 32 GB than 64… I’ll post results. Thanks.
edit: maybe the problem is the RAM Disk itself? fooling Sony Vegas into guessing wrong the RAM available when there’s 32 GB reserved for the virtual disk ?
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I would keep the Ram disk. After you have 8Gb or more of system RAM, then Vegas really doesn’t benefit much from the additional. If you do your projects on the Ramdisk, I’ll bet that you get some blazing fast renders.
You only need a lot of Preview Ram if you are doing Shift-B previews.
Steve Mann
MannMade Digital Video
http://www.mmdv.com
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