I dont have any macs for desktop use. Lightroom on win10 is resource hungry. I just wanted to mention that installing a moderate gpu with more than average memory is a good idea. I cant give benchmark numbers. Develop mode feels much faster. Ps the intel gpu only uses shared memory on pc's no idea if mac and intel is different.
On Thu, 9 Jul 2020, 21:58 Godfrey DiGiorgi, <[email protected]> wrote: > I have my 2012 Mac mini i7-quad core @ 2.3Ghz @1T SSD right here too. The > new 2018-2019 mini runs rings around it too … The old one tested the same > way takes about 7.5 seconds per raw file conversion and output compared to > the new one at just about 2 seconds, averaged. And the editing experience > is much slower, about 3-5 seconds per new file selected, when compared > against the new one as well. > > The memory use numbers for LR on the old system is very very similar to > the memory use numbers for the new system, never actually exceeding 7G RAM. > > This doesn't give me any info at all, however, trying to compare the > performance of my current Lightroom on Mac mini performance with Toine and > Henk's Lightroom on PC computers with respect to memory use and rendering > performance. That's what I was looking to understand. > > Lightroom does seem to recognize the i7-six core onboard GPU (Intel UHD > Graphics 630, Metal-compatible) and allows me to turn on performance > enhancement, but it is a little shy on GPU RAM at 1.5G rather than the 2.0G > minimum on the Adobe web page that's recommended. I see a small boost in > the frame-to-frame performance with the GPU performance enhancement turned > on when I'm scrolling or doing a rendering adjustment, but it moves by so > fast that watching the numbers in Activity Monitor doesn't show anything > and I don't have the performance analyzer software I used to have (which > would capture a trace on a much higher sampling rate basis) installed any > more. > > G > > > On Jul 9, 2020, at 7:44 AM, Ralf R Radermacher <[email protected]> wrote: > > > > Am 09.07.20 um 16:26 schrieb Godfrey DiGiorgi: > > > >> ...Intel UHD Graphics 630 display driver... > >> I did a test of rendering out 100 Hasselblad 907x 50 Mpixel raw files > with the GPU graphics acceleration on and off, zero difference ... and the > GPU indicator is never non-0. > > > > That's because the Intel graphics isn't a proper GPU. Mac Minis don't > > have any real graphics acceleration. > > > > I have a Mac Mini (late 2012) and a MBP (mid 2012) both with a i7 at 2.3 > > GHz and 16 GB of RAM. The Mini has the usual Intel graphics and the MBP > > has the Intel graphics plus a built-in NVIDIA GForce GT650M. It runs > > circles around the Mini with things like creating thumbnails on import > > in Lightroom. > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

