Am 22.03.2013 12:48, schrieb Colin Adams: > On 22 March 2013 09:15, Pascal Obry <pas...@obry.net> wrote: >> I think one important point as already noted is the graphic card to >> run with opencl mode. >> You need in this case at least 1gb of RAM in the graphic card.I I have >> myself only 512Mb >> and even if it is possible to tweak dt to run with opencl in this case >> it does not work properly. >> >> So be sure to go for at least 1Gb of RAM in your graphic card. > > Anything else to note when choosing a card? For me, it would be just > for photographic use, so should I just get the cheapest NVidia card > compatible with openCL that comes with 2GB RAM? >
Until a year or so the answer has been quite clear: go at least for a mid-end to high-end NVIDIA and avoid ATI/AMD. I have an NVIDIA GTS450 which is reasonably fast and even outperforms my i7-2600. An NVIDIA GTX5xx would be an faster choice. With the most recent generation of GPUs situation has changed. NVIDIA's 6xx series sucks when in comes to GPGPU. I mean, they are not extremely bad, but you don't get a lot bangs for your bucks. At the same time ATI's recent HD77xx or HD79xx are really fast in computing. I now have in addition an HD7950 running in my box and it is about 10 times faster than my CPU when it comes to file export. And it costs less than e.g. a GTX660Ti. On the downside: AMD/ATI's drivers tend to be less stable than NVIDIA. This is especially true when you want to use the latest linux kernel or the latest X11. Ulrich ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar _______________________________________________ Darktable-users mailing list Darktable-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/darktable-users
