I'm far from a computer expert, so take this with the appropriate chunk of salt. I'm just reading and reporting back.
A friend sent me this interesting short article about picking a computer for Photoshop and Lightroom. It's a product description page for a photo-specific computer built by a PC fabricator. It's on Punch and it's called "What kind of processor do I need for Adobe Photoshop CC and Lightroom CC in 2018?"
It starts with a brief description of cores and threads, then moves on to clock speed. Turns out multi-core CPUs aren't really that significant with photo processing: "...we have undertaken testing using a range of processors from dual core right through to the huge 18-core variants. We were quickly able to conclude that both Photoshop and Lightroom are not able to take advantage of a great number of processor cores." Two- and quad-core machines are fine, the authors say, with maybe an extra two cores for running background tasks at the same time.
The situation is the opposite with processor speed. Their conclusion is pretty stark: "Photoshop performance scales directly with processor clock speed."
This would seem to emphasize the importance of turbo boost, but the authors explain that turbo boost requires CPU cooling to avoid overheating the CPU and operate at good efficiency. It's good news that the new Mini has a redesigned fan—sorely needed, in my experience—but how does that relate to what they're talking about? Beats me.
I'm not sure all this helps me choose a Mac Mini model. But then, I don't really do massive Photoshop projects—I process relatively straight, don't do a lot of processor-intensive functions like panoramic photomerges, and print small. I should probably just make do with the most basic base Mini if I go that route.
Oops
But I did some configuring, and it turns out you can slam the budget pretty easily configuring a Mini. The Mini is not mini any more in terms of $. I guess you're getting a lot of computer, but you're certainly paying luxury prices. (And before the Apple-haters chime in, I'm in the Apple ecosystem and I'm not getting out. It's not a question of just one device—it's how all of them work together.) I suppose my next work computer will be a 21.5" iMac, which is what lordly Apple decrees customers like me shall buy. Who am I to argue with a trillion-dollar behemoth?
The first Mac I did my work on, Spring 1984.
Ten pages of text per floppy. :-)
Still, interesting article. (I love primers.) I'll be interested to hear what some of you think who know much more about the subject than I do.
Mike
(Thanks to Steve Rosenblum)
P.S. And here's an interesting thought. It's finally at least conceivable that I could go with a highly configured iPad Pro and an iPhone, and dispense with everything else. No more desktop, no more laptop? Radical.
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(To see all the comments, click on the "Comments" link below.)
Featured Comments from:
Thom Hogan: "As I outline in an article on my site: memory first, dedicated GPU second (if you can get one), CPU clock speed third. In broad strokes, that's where performance in Photoshop comes from. The thing you absolutely want to avoid is virtual memory or scratch disk spills out to a slow drive.
"To answer your question on the new Mini, it's unknown yet just how much heat dissipation the fan on it can manage long term. If it's efficient, then yes, the turbo boost speed is very important. If not, the base clock speed is probably more important."
[Here's that link —Ed.]
Vince: "If you’re going to get an iMac, you’ll be much happier with a 27". Especially since that’s the size screen you already have. But I don’t know why you would. A Mini with an i7 and 512GB SSD is $1,500. If you want 16GB of memory, give Apple $200 to upgrade it. (The memory is replacing the built-in, and 16GB is $170 from OWC; it’s worth the $30 not to mess with it.) If you want 32GB, give OWC $330 to upgrade it. Around $1,700–1,800 total. A comparably equipped iMac 27" is $2,500–2,600, and only has four cores instead of six. Why spend the $800–900 when you don’t have to? (Unless you also want a 5K monitor, in which case definitely get the iMac.) (Note: I own and love the iMac. But you have a Mini and a good monitor. It seems to make more sense to stay with the Mini.)
"Also, what that article really says is that Adobe apps are bloated and horribly performing. If you really want to improve the performance of your editing, get new software instead of beefing up your hardware to ridiculous heights."
Moose: "Likely not much factor for your use, but GPU is a significant factor for many Photoshop users. Your link mentions two reasons: 'The downside of utilising a processor with integrated graphics solution is that both the processor and GPU share the computers main system memory. Not only does this consume valuable memory for graphics use but it eats up memory performance bandwidth too.' A more powerful GPU also speeds up some display functions."
Joe Holmes: "After eight years with my elderly Mac Pro desktop machine I finally upgraded last year to the 27" iMac Retina 5K, with every available upgrade and 40GB of RAM. What an enormous difference, a huge amount due to moving a lot of my software to a superfast SSD. Everything is now just snappy. One thing I've long depended on for photo processing is two monitors—it's great having a full-screen image on one and all my Photoshop palettes and tools on the other. I know you love your existing monitor, but you might consider keeping it and using the iMac's (gorgeous) 27" Retina screen as a second monitor. All it takes is the right cable. Of course the iMac is much pricier than a Mac Mini, but if you, like me, expect to keep the machine for at least six or eight years, it's a very worthwhile investment."
Thomas Tveit Rosenlund: "That is not a photo specific computer. That is actually an Adobe specific computer. Because of Adobe's software architecture the applications can't utilize a lot of cores in an optimal way (only for some tasks like batch output/input). It is the same story with GPU. There exists other software solutions for photo processing and cataloging that actually manages to utilize the resources of a multi-core setup as well as the GPU capabilities in a much better way. Capture One is one, I am sure there are others as well (Capture One is reportedly better developing Fujifilm X-trans files also, so the switch should really be a no-brainer for the author of this site).
"What you really need is a Microsoft Surface pro and an upgrade to Capture One for Fuji. :-) "
Mike replies: I've been trying to make friends with Capture One for Fuji. The plugin I really want to keep is Nik Silver Efex Pro 2, and it looks like I should be able to learn how to integrate that. I just think I'm going to miss ACR. I've spent time and effort learning ACR and I'm attached to what I know how to do in ACR....
david stock: After decades of Mac use, I'm feeling stuck. With Apple's lack of desktop choices, iMacs are what many photographers seem to turn to. But I dislike the screens. They are pretty for viewing, and for web content. But for someone who prints photographs regularly, they are suboptimal. They are extremely bright and saturated (and too reflective). Because they are optimized for web and movie viewing impact, they are hard to profile accurately for printing. They have a history of problems with uneven illumination. And they are actually too high in resolution to allow conveniently judging critical sharpness (as Lloyd Chambers and others have pointed out). I had high hopes for the new Mini. It's powerful, with lots of good ports. Its only drawback for me is the lack of a dedicated graphics card; I can't wrap my mind around paying $700 for an external GPU box. Apple promises a new Mac Pro next year. But I'm sure it will be incredibly expensive...."
Mike replies: FWIW, I've felt that frustration. I invested in the NEC PA272W last year to have a more configurable, lower-glare display, but Apple's options of low end (Mini) and high end (Pro) desktops were both too extreme for me—no Goldilocks solution. I needed a box right in the middle. The new Minis are likely going to do the job when I upgrade next Spring, assuming I can afford to.
But maybe the real problem is Photoshop. I just looked at Capture One's system requirements. It's a pretty basic, casual page, but they say minimum is 2 cores, 8 GB RAM, and 10 GB free hard drive space, and optimum is 4 cores "or better," 16 GB RAM "or more," 100 GB free hard drive space, and an SSD drive. Seems like the Core i3 Mini with extra RAM would serve. I just don't know about what you mentioned, which is how the lack of a dedicated GPU might affect anything. I just switched from coffee to tea; switching from ACR/Photoshop to Capture One should be easy, right?
But hey, I learned a lot today. I guess I'll just keep my ears open and read the real reviews when they start appearing, and just keep learning till I know enough.