-
1. Re: Graphics Card RAM
JSS1138 Jul 21, 2011 2:35 PM (in response to ectobuilder50)With higher resolutions (stills as well as video), it comes in handy. If there's not enough VRAM, processing get's shuffled off to the CPU and you lose the benefits of hardware acceleration.
Get the most VRAM you can afford.
-
2. Re: Graphics Card RAM
ectobuilder50 Jul 21, 2011 4:02 PM (in response to JSS1138)how else could more vram be useful?
-
3. Re: Graphics Card RAM
ectobuilder50 Jul 21, 2011 4:06 PM (in response to JSS1138)I believe that if there is not enough VRAM the GPU will use system memory to complete a task. The only time processes get shuffled back to CPU is if it is a CPU only task or if there is some kind of load balancing AI in the software to do that.
-
4. Re: Graphics Card RAM
Harm Millaard Jul 21, 2011 5:26 PM (in response to ectobuilder50)It does not affect performance unless you use extremely large pixel dimensions that use all of the available VRAM. If more is requested, then PR falls back to software mode without warning you. Todd has made a blog about it. Search for it.
-
5. Re: Graphics Card RAM
JEShort01 Jul 21, 2011 6:09 PM (in response to ectobuilder50)Here is a good link regarding how graphics RAM is used and what happens when it is maxed out:
http://blogs.adobe.com/premiereprotraining/2010/07/maximum_dimensions_in_premiere.html
Jim
-
6. Re: Graphics Card RAM
ectobuilder50 Jul 22, 2011 9:26 AM (in response to JEShort01)But how about how the CUDA engine utilizes VRAM to compute effects? If for instance in his example we use a T2i image (with the stated resolution to max out the 1GB on the card) then do we not have anymore VRAM to work on effects?
-
7. Re: Graphics Card RAM
JSS1138 Jul 22, 2011 11:37 AM (in response to ectobuilder50)That would be correct.
Unless you had a card with more than 1GB of VRAM on it. Which is why I recommended getting one with the most VRAM you can afford.



