----- Original Message ----- > Am 26.11.2016 um 18:11 schrieb Niccolò Belli: > > You will probably get better performance saving some bucks on the CPU > > and buying a very fast GPU for OpenCL acceleration. Something like the > > RADEON RX 480 would be an optimal solution because of FOSS drivers, > > but you will have to use the AMDGPU-PRO driver until Clover Image > > support gets mainlined (hopefully soon). > > I was planning to use Intel chipset graphics without buying an > additional GPU at all. > Can darktable use OpenCL with those?
Essentially: * A good GPU makes dt faster that a CPU (several times faster) * A not-so-good GPU (typically the integrated Intel chipset, or some cheap external graphics card) would make dt *slower* than your CPU. Recent dt version try to disable OpenCL when it notices such situation. * If you have a good GPU, then a faster CPU won't make much difference as most computations can use OpenCL. > If yes: how much performance improvement would be expected if I add an > additional graphics board? I did some benchmarks on my machine with and without GPU, the discussion is still available here: https://www.mail-archive.com/[email protected]/msg06504.html -- Matthieu Moy http://www-verimag.imag.fr/~moy/ ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to [email protected]
