I just got my Mac Pro today; I will be mostly using it with LR as well. Like the OP, I export lots of raw files every day, and also do exports of TIFF files to HeliconFocus for focus stacking. I decided to go with the 16-core as a sweet spot of price/performance, as I didn't feel like doing my own CPU upgrade. I got the Radeon Pro Vega II rather than the Duo or a pair, as LR can only use one GPU, but it loves having a lot of GPU memory for edits, etc. Right now I've got 192GB of RAM, which should be fine, if not, I'll cap it out with 384GB of RDIMMs and that should be more than enough.
I barely got it set up today before I had to leave the office, but I did get time to do a quick export of a dozen images from LR into HeliconFocus and it was insanely fast. What would have taken several minutes on my fully-loaded 16" MBP took maybe 15 seconds. Same with the stack in HeliconFocus, which is optimized for AVX-512.
Tomorrow I should have all of the parts to install my NVMe RAID configuration where I will load my data and then I'll test it all out in a round of comparisons to my 16" MBP. Based on what I saw this afternoon, however, it's going to save me hours of time every week, and for me time = money.
Congrats mate! Can I ask a few questions and hope to discuss with you.
CPU
As to 16-Cores vs 28-Cores spec
3.2GHz 16‑Core Intel Xeon W processor with Turbo Boost up to 4.4GHz
2.5GHz 28‑Core Intel Xeon W processor with Turbo Boost up to 4.4GHz
Because When I using my 28 Cores, the speed always from 2.8-3.0 MHZ during export with all 28-Cores Fully Loaded.
Can you please use the Intel Power Gadget and take a screenshot when exporting Raws? I have attached mine
GPU
I am very curious about GPU performance is it really matter in Lightroom?
Because I use activity monitor and check when editing the GPU usage is very low, but if the clock speed is higher in Vega II, will it be a lot faster than 580x in the Lightroom Develop module?
especially switching between images in the Develop module.
NVMe RAID
I am also planning to get one for my scratch disk of PS and Lightroom Camera Raw Cache
I saw others get 6000MB+/s Read and write when using Sonect or Highpoint raid card.
Do you think this will give a huge performance improvement on the Lightroom? current internal SSD only 2800MB/s
ant btw
which NMme Raid card are you planning to get? I want to get one bootable later maybe useful
Is Mac OS SoftRAID reliable?
Thank you very much
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Wow, this is exactly what I’m looking for! I’m trying to figure how much of a difference it would be between the new 16 MBP and the Mac Pro. Looking forward to your Lightroom tests! That’s the main program I use these days!
I tried editing some photos yesterday with my 28 cores / 580X/ 128GB RAM
switching between an image in DEV mode of Lightroom is very fast! super fast!hahaha, this save my time a lot
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What I’m extremely curious about is how the UI performance of Lightroom is on the new machine on a >=4K display. It used to be absolutely AWFUL on my Dell 5k display on the trashcan.
as to 4K 5K 6K monitor, I really want to say, LR user, stay away from those HiDPI monitors if you need speed.
I used 4k+ monitor on Lightroom 4 years ago on my Mac Pro 2013 then I sold the 4K Dell then get a Dell 30inch 2560x1600 Monitor. Because 4K kills a lot of performance, even I have Mac Pro 2019 now, I stick with it
I know how HiDPI monitor Kills performance when I using my 6 cores RMBP 2018 internal Monitor(HiDPi) vs external monitor 2560x1600
Mac Pro 2019, as to speed, LR switching between images in development module is a loooooot better than 2013 Mac Pro(12Cores) and 2018 RMBP(6 Cores) in terms of the responsiveness, but still not "instant" respond yet, but close enough to switch between images in Library module in Mac Pro 2013)
I’m not sure the current GPU or CPU will make it fast enough to make me feel no different between 4K and Normal 2K screen.
In this case, I don't want to use a 4K screen to make it less responsive, which may possibly be.