Comparing Mac hardware—amortized cost and approx. performance gains

I love my Mac Mini and it was certainly the right purchase for me, but it does seem to run hot (granted, I do live in Thailand), and it seems to struggle to power my devices all the time.
I suspect there are bottlenecks in the system that the iMac may be better for.
My Mini runs cooler than my MBP still.

What I’m saying is that as you move up from MPB to Mini to Imac I think continuous throughout and thermal’s and whatnot get better.
If I needed GPU, which I think you do I would have gone for an iMac I think. As I didn’t really and I had a monitor, I got the far better value Mini.

Just my feeling, anyway.

1 Like

Thanks, @dustinknopoff. Indeed, that seems like the right path. (And yes, too bad a variety of essential apps are web- or electron-based these days…)

@Timo / @GraemeS — Thanks for that firsthand experience! As @bowline pointed out, I should clearly wait a bit. But listen, people—the heart wants what it wants! And right now, that’s a little quiet black box…

Oddly, today I’m able to work with my client’s map with little trouble. I must have been running something in the background that was eating up resources the other day.

The current iteration, since you’re all so invested, looks a little like this (:warning: large image by the way; and the text’s obscured on purpose).

I dunno what that is, but it looks neat.

2 Likes

I too have a 2015 MBP with the same specs as yours.

Last year sometime my power supply started acting up, so I took it to a local Mac repair shop and they told me to get a new supply from Amazon. Not available in Canada from Apple.

Anyways, while it was in the shop they mentioned that I was eligible for a couple of FREE replacements. They sent it off to a local Apple repair shop for me and they put in a brand new keyboard AND a brand new Retina display. I was shocked to say the least.

The downside is that now I have to wait a lot longer before I can get a new MBP (wife, budget, etc.)

You might want to see if you are eligible for any recalls that Apple may have made.

Good luck!
Larry Wilson

2 Likes

Thanks, @Larry_Wilson—actually essentially my whole machine was refreshed just last year. I brought it in for a checkup because the battery health had declined and, thanks to AppleCare+, they decided to replace basically all of the internals. (One bonus to the non-repairable design of these devices, I suppose!)

@Timo It is a model of the complex chains of cause and effect that interact to cause zoonotic pandemics!


Well, WWDC 2020 has come and gone, and I think @bowline’s probably right about a 2-3 year lifespan for a machine purchased today. I’m gonna be desperate for an Apple Silicon chip once they’re past the first generation.

So, I think a cheaper purchase now will be better in the long run. It probably doesn’t make sense to wait for the to-be-announced machines and buy a new one at full price if I plan on upgrading again when Silicon becomes standard. It may be a Mac mini after all!

FYI Steve jobs announced the transition to Intel in June 2005, said it would take about two years (sound familiar?) but the transition was actually completed 14 months later. Snow Leopard was the last macOS version to support PowerPC, and perhaps because of that it has substantial longevity and was supported/updated 2009-2011.

(Conceivably Apple could do something similar if a geographic area like the EU has a mandate on OS support to match their hardware support requirement.)

So the lifetime could conceivably be more than 3 years, but practically - with the introduction of USB4/Thunderbolt4 likely only on ARM machines, plus the addition of AI cores (as in A-series chips used in iOS), plus the promise of dramatic speed increases unlike what we’ve seen the last several years with Intel - people, especially MacPowerUsers™, won’t want to hold onto new hardware for longer (or even that long).

I’m currently a bit at a personal impasse as I learn more about the potential power of the new ARM hardware. I’ve long been planning to get a new 27" iMac this fall to replace my 2017 Retina iMac, but if the power of an ARM/iMac is is the ballpark of Intel, then given the promised (though not fully explained) ability to run iOS apps on Big Sur/ARM, I might well consider going that route earlier than planned. (The main complication for me is that the rumor is that we’ll see a 24" ARM iMac only in 2020, and I really prefer the larger Retina screen.)

3 Likes

If you’re not starved for power or stuck with an end-of-lifed machine, I would recommend to wait for the ARM Mac form factor you’re looking for. Of course, Intel Macs are going to be supported for several years, but their days, even still long, are clearly numbered. If you like to buy a powerful machine to last long, this doesn’t seem like the time for that kind of bet.

1 Like

I need 20 characters to say, “very cool!”

2 Likes

@ryanjamurphy Have you considered a 21.5" iMac? That could be a nice addition to your existing 5K display and wouldn’t cost as much as a 27". I’ve been running a 21.5" iMac with 2 external displays for almost 3 years and it’s been a great machine.

2 Likes

Thanks all. I have a lot to chew on.

As it happens, I think I’ve figured out why my trusty MBP is struggling sometimes—it’s the heat. If I edit my maps for a while, it starts to cook, which must lead to throttling. If I pick up a map after a break it does a bit better.

So, I might be able to “work smarter, not harder” and suffer with this machine for a year or two, giving me the chance to wait for an Apple Silicon desktop form factor I’m happy with.

On the other hand, I have heard that Mac minis make great home servers in retirement…

Edit: Also, the fact that thermal performance matters this much in practice means that all of my comparisons using Geekbench scores are kinda useless. Is there another measure out there that does a better job of accounting for high performance day-to-day use?

In the end I had to “find out” by buying a machine and seeing for myself.

Accounting for high performance in day-to-day use is pretty subjective. For me, I decided that the only metric I could reliably compare “performance” with was Geekbench single core performance – too litte of the software I use benefits much from multicore.

There’s an interesting recent post at Barefeats which asks if the 16" MacBook Pro can replace a desktop unit. As is the way of that site, various tests using popular (albeit specialized) processor and/or GPU intensive tasks are compared.

The conclusion: :woman_shrugging:

1 Like

Do you already have a monitor? The cost for the Mac Mini should include any additional costs like monitor, keyboard, and trackpad. I’m guessing the Mac Mini will still come out ahead though.

Aye, that’s the main motivator for going with the little mini. I own every other aspect of my desktop already—without much room for another display, too.

I could fit a MBP but that’s both more expensive and (as discussed above) I’m concerned about the tradeoffs of performance, laptop form factors, and thermals.

I have a 2015 MBP too and it was struggling when connected to my 4K external monitor. I have written about it in this post. Opening the lower case and cleaning the insides out with a can of compressed air should help with the heat. If that isn’t sufficient then you can try replacing the thermal paste. I just did so yesterday (using ARCTIC MX-4) and am happy to report that it has made a difference!

The Mac is able to drive the external monitor now, which it couldn’t earlier, although the fans do run at around the 6,000 rpm mark in order to keep the temperature below 70°C. The AC in my room has conked out and it is pretty hot (around 95°) and humid where I am so that might be contributing to the increased fan speeds too.

Good luck!

1 Like

Thanks @ryanjamurphy. I’ve followed this with great interest.

I have decided that I will wait until the configuration that I want on the 16in MBP falls below $3k (US dollars with educational discount). My 2013 MBP that has been upgraded to 1TB SSD and 16GB RAM will have to hold out until then, even as the rubberized gasket holding the Retina screen is wearing at a spot, the glass screen itself is scratched from the keys, the letters on certain keys are worn in spots, and the back cover no longer fits properly in place. It still churns on to do what I need.

I suspect that a drop to this price point may occur soon after the first ARM Macs are available. And if projections are on spot, the new dongles that I’ll need in transition will make for a wonderful Christmas list for family.


JJW

1 Like

For decades Apple has tended to build to specific price tiers, so if you’re looking for a lower price you usually need to look to used/refurbed, or a different product at a different price tier. Additionally, it seems unlikely to me that Apple will make its remaining Intel hardware more price competitive before its phase-out. They didn’t do the the last two go-rounds when switching processors.

Thanks all!

I have made perhaps the worst Mac purchasing mistake I’ll make in the next ten years—my Mac mini gets here next week. Six-core 3.2Ghz, 1TB SSD, and 8gb of RAM. (I will install 64gb myself, thanks to iFixit.) Despite the uncertainty, I am very excited about my new performance ceiling.

This is in spite of Joanna Stern saying that this is probably the worst time to buy a Mac… In my defense, her caveat was “unless you really need one,” and I think I do.

Hopefully I’m not too impressed with the first line of Apple Silicon Macs, else I’ll probably entertain offers for my Mac mini in a year! We shall see.

1 Like

There have been teething pains in hardware and software both times Apple previously migrated to new processors, and it’s inevitable it will happen again. Just as mavens rushed to jump onto the Catalina and iOS 13 betas the instant they came out (and paid for being unpaid beta testers) there are people champing at the bit to buy these new machines, sight unseen. But Intel Macs will run well and be supported for years to come, so be happy with your purchase if you need a replacement now, and be happy you won’t have to negotiate what will probably initially be choppy waters of new hardware and software compatibility and emulation.

1 Like

That’s my machine; the RAM install was involved but doable. I think as a stopgap at worst it’s a great machine, and given any teething issues with the new ARM macs, well, maybe more than a stopgap.

2 Likes

Yep, I love mine and did the same for hardware. Nothing too fiddly except for the antenna connection needs patience. Relax and take your time.

I do think the next model of Mac Mini will be exciting and powerful, but I also think that it will fully blossom in a couple of years’ time as Apple works to get all the bells and whistles in (I’m not expecting problems with the first round of hardware, just that it will continue to improve rapidly for a few years then settle down. Gut feeling). So, I do think my machine will age (in my eyes) faster than I wanted it to, but on the other hand I like new toys.

As people keep saying, if you need a machine, get it now and no regrets. It’s great.

2 Likes