Jacques Cornell
Forum Pro
Bakubo, you make a good point that's worth further consideration on Glen's part.No, you don't need to worry about it as long as you don't use LrC/Ps -- and even then it is just the AI denoise which is slow, otherwise LrC/Ps run fine. And the LrC/Ps AI denoise still works on Apple, just slower because it cannot use the NE.Is this something a newbie will need to worry about? If I'm going to have to do any troubleshooting, i might as well stick with Linux.
For AI Denoise performance, more GPU cores will speed up processing. When I ran benchmark tests about a year ago, my M1 Max Studio, with double the RAM and GPU cores, did Denoise in 1/3 the time and 1:1 previews in 2/3 the time of my M1 Mac mini.
OTOH, DxO's DeepPRIME XD makes use of the Neural Engine, enabling it to run in just 16s on the entry-level M1 mini vs. AI Denoise in 40s on the Studio. I'll have to retest AI Denoise vs. DeepPRIME XD2s on my Studio to see what's changed, but it seems DeepPRIME is just faster, especially on modest M-series Macs.
Thanks to the doubling of throughput in the new M4 chip's Neural Engine, I expect the M4 Mac mini to be another tremendous bang-for-the-buck value when it comes to DeepPRIME processing. You can use some of the money saved to pay for DxO PhotoLab and still come out ahead. Or, you can throw a lot of money at hardware to get decent performance from AI Denoise. And wait for the Day of Rainbows and Butterflies to bring us a non-destructive workflow from Adobe.
Thanks for this excellent history lesson.Although it seems from what DXO, Topaz, and Adobe has said that it is a Neural Engine problem there is very little info about it. All we know is what I wrote already from the comments that the 3 companies have made in the past. It is possible that other companies such as On1, etc. that have AI denoising also have problems, but I have not followed them.
If you don't use Lightroom and Photoshop and their AI denoise then it won't matter to you. As I already wrote, DXO said the problem showed up when Ventura came out in October 2022 so for awhile they told their customers to turn off the Neural Engine and only use the GPU. Then later they came out with a new release and said they had come up with a workaround (probably some sort of kludge) to allow the very fast Neural Engine to be used again even on Ventura and releases after it. And even with the workaround it is pretty widely said that DXO gets the best results. Topaz has said less about all this, just that they had discovered problems with it and separately they have said they use it so probably they have also found a way to mitigate the problems.
Adobe first said they were using the Nvidia Tensor cores and Apple Neural Engine in their AI denoise when it first came out. Then not long after they said they had to disable the NE code and only use the GPU because of quality problems with the NE. Then last year Adobe announced they could finally use the NE and it really speeded up denoise a whole lot, as people on these forums have confirmed -- much faster. Then after just a few months Adobe again said they had to disable the NE code because they found there were still problems with the NE. That is how things stand today.
I suspect Adobe just has too much on its plate. 18 years later, Lightroom still has keyboard shortcuts that change from mode to mode, no obvious visual cues as to what mode you're in, and no way to customize the keyboard shortcuts. Also, Photoshop can adjust UI size to match high-rez displays, but Lightroom can't. TBF, neither can PhotoLab, so I just squint at my 32" 4K screen when reading UI text. Maybe in another 5-10 years...It is unknown why small, much less rich companies such as DXO and Topaz are able to workaround the NE problems and did it long ago in a short time, but big, rich Adobe for years still can't or won't.
As you can tell, I have a love/hate relationship with Lightroom. I appreciate its Swiss Army Knife versatility, but, particularly as a former Aperture devotée, I hate all the little bad choices and oversights that went into its design and make me swear at the screen on a regular basis. If any other app offered decent DAM, HDR and pano merging, smart sharpening and lossy compressed DNGs on export, I'd ditch Adobe in a heartbeat.
--
Event professional for 20+ years, travel & landscape enthusiast for 30+, stills-only.
http://jacquescornell.photography
http://happening.photos
Last edited: