How cheap a GPU will still speed up darktable?

[danny]

Numbers from an older comparison:

Which benchmarks provide an estimate to enable me compare and decide on which GPU to buy, for Image Processing ?

Some numbers from P620 and rtx 2070: Nvidia P620 151,788866 [dev_pixelpipe] took 0,197 secs (0,192 CPU) processed color calibration' on GPU, blended on GPU [export]* *151,810051 [dev_pixelpipe] took 0,021 secs (0,016 CPU) processed color calibration 1’ on GPU, blended on GPU [export] image colorspace transform RGB–>Lab took 0,015 secs (0,007 GPU) [colorchecker ] 151,895724 [dev_pixelpipe] took 0,086 secs (0,069 CPU) processed color look up table' on GPU, blended on GPU [export]* *image color…