Hi, Keep in mind, that not all the RAM of graphics card is available for OpenCL. E.g. I hava a Padeon R9 270X which is advertised with 4GB, but only 3GB can be used. More RAM will definitely give you a performance boost if you are currently at 1GB. DT has to split the image into several parts (called tiles) and process them consecutively. With more RAM, you can gain a performance boost, as fewer tiles are needed. Processing a bigger tile is not twice slower than two small ones, as the graphics cards are performing parallelization.
I can't say if it is worthwhile for you to upgrade, that's a personal thing :) Sebastian On 07/28/2015 03:52 AM, darkta...@911networks.com wrote: > I have DT 1.67 on an xUbuntu 14.04.2 LTS with an AMD 8350, 12GB RAM. > > The video card is a nvidia GTX650Ti with 1Gb vram. OpenCL is working. > > Is it worthwhile to upgrade the video card to a faster one (like a > 960/970) with 2Gb RAM or will the performance gain be negligible. > > > -- > python programming - mail server - photo - video - https://sebix.at > To verify my cryptographic signature or send me encrypted mails, get my > key at https://sebix.at/DC9B463B.asc and on public keyservers.
signature.asc
Description: OpenPGP digital signature
------------------------------------------------------------------------------
_______________________________________________ Darktable-users mailing list Darktable-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/darktable-users
