> * Which drivers work (best) for using OpenCL in darktable? Are the > open-source drivers okay or do I need the binary drivers from AMD or > Nvidia?
For NVidia you need the binary drivers, the open source ones are missing some OpenCL capabilities required by darktable. If you're running some Ubuntu derivative they're pretty easy to install and maintain. > * Is it worth getting a high-end card (say 5700 XT for AMD or 2080 SUPER > for Nvidia)? > > * Are the performance differences in darktable noticable, compared to a > card that is one or two steps down from that - especially when you > consider the rather larger amount of money I'd have to pay for it? To answer this you would need to tell us at least the typical use you will give it (dozens of pictures per week, or 1000 per night?) and the sensor size (20MP or 60MP?). Although there can be an appreciable difference between a top-end card (2080) and a middle of the road one (1660), it might not be worth the extra expense. In general, any current decent card (= middle level and up) will be almost lag-free on the darkroom. The main problem will be on export, and even then it should take less than 10 seconds per picture. If you export 10 or 20 pictures per session, I don't think that cutting the export time by a couple of minutes is worth it. But if you consistently export hundreds or thousands of pictures, then the time reduction might be worth it (and you will probably also appreciate the extra speed in the darkroom). One point though: get at least 4GB of video memory, specially if you have a high resolution camera. Best regards, Guillermo ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to [email protected]
