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Populus

macrumors 603
Original poster
Aug 24, 2012
6,394
8,941
Spain, Europe
Hello there, dear Mac mini forum!

As you might remember, I already initiated a thread regarding wether to buy the M4 or the M4 Pro Mac mini. During this past holidays I was testing both machines, and I came to the conclusion that the M4 was plenty enough for me.

Then, I realized we were already 6 months in on the M4 cycle, and the M5 was coming rather sooner than later. So I decided to wait… and wait… for the M5 coming in October, as my definitive purchase. Remember that I am that kind of a consumer that instead of buying a base model and replacing it every 2 or 3 years, I usually keep my machines for a long, long time. My current Mac mini is in fact an 11 years old 2014 intel Mac mini, which I barely use now (I’m writing this from my M2 iPad Pro connected to my main monitor).

I was set to wait until the M5 and then buy a well specced machine that could last me 10 years. But now, with the new US administration’s tariffs, and how the stocks and the enterprise world is reacting, I am afraid of prices going up even further, even here in the eurozone. I know this tariffs are initially going to impact US and China, but here in Europe we always, eventually, get hit with higher prices than the US for some reason, so I’ve decided that this is the time to get my new Mac mini, even if it is the M4 instead of the M5. In fact, it is likely that the regular M5 won’t be as high as an upgrade and the focus will be put on the M5 Pro and Max, but even if the base M5 comes with a much better GPU, I’m not buying my Mac mini to game, as I intend to get a PS5 Pro for that purpose.

Now, to the thread’s question:

Okay, this past holidays, as I previously said, I had the chance to test both, the M4 with 16GB of RAM and the M4 Pro with 24GB of RAM. Yes, they were both the base systems. In both systems, storage was rather limited, so I’m going for the 1TB version. I know, I know, Thunderbolt 4 external drives offer better bang for the buck and they are as fast as the internal SSD, but I want a minimum of 1TB of SSD because I know I will eventually need it, I want to have at least a 30 to 40% of free available space, and I don’t like to feel like I need to carry around an external SSD.

That being said, along with the 1TB of storage, I want either 24 or 32GB of RAM. And there is where my doubt is, my main question: should I buy the 24GB or the 32GB model?

My experience with 16GB of RAM:

See, on the systems I had been testing, this were my experiences: The 16GB base M4, with the usage I had been giving it, the 16GB were consumed rather quickly. If this happened on a “launch” operating system, such as macOS 15, I cannot imagine how would it be on a redesigned, brand new macOS 16, or with future Apple Intelligence iterations, that will probably eat up more RAM. On my M2 iPad Pro, now that I have 16GB of RAM, the difference with my previous iPad Pro with 8GB of RAM isn’t that big. Actually, I would say it is rather unnoticeable. But macOS is a different beast, and we all know those memory leaks that end up eating tons of RAM, and web browser tabs etc… If 16GB of RAM is barely enough now for my macOS 15 usage, I am quite sure it will be even worse in 3 or 4 years.

My experience with 24GB of RAM

Now, regarding the M4 Pro machine with 24GB of faster RAM. Yes, it was enough. You might say “you’ve answered yourself, sir” And, well, maybe I just did, but I still wanted to ask the forum. Because the M4 Pro 24GB were faster than the regular M4 are, and I’m not sure if I should take that into account. Regarding gaming: Resident Evil 2 was a bit taxing on RAM with everything maxed out, I reached the yellow or maybe even the red zone, and performance started to degrade, both in the game and the system. Yes, to reach that point I had RE2 running along with another apps, such as the browser and an emulator. Am I going to use my M4 Mac mini as a gaming machine? Definitely not. As I previously said, I plan to get a PS5 Pro in the near future, but there are some games that are either PC exclusive (which I plan to run via Crossover or Whiskey, and those emulators eat a good amount of RAM) or I have purchased on the App Store because I prefer to play them at my Mac, such as Myst and Riven. And yeah, maybe 24GB are enough now, especially if I don’t run other software, but what about in 3-4 years?

I like to multitask a lot. I am that kind of user that has several apps open in the background and switch from one to another, and I like to feel my system responsive. That includes browsers such as Safari and Brave (and maybe Firefox, but definitely not Google Chrome), and other apps that might be RAM intensive or not.

Potential usages (in the future):

This is just an hypothetical scenario but, as I said, I am planning this purchase for the long term and I plan to use it for 8 to 10 years. I would like to get into amateur music production, which is known to eat a lot of RAM. I am also interested in playing with local LLMs as new, more efficient models are coming through. I also plan to purchase Mac Whisper, and use it with a lot of hours-long audios; I’m not sure how much RAM does Mac Whisper need, but I suspect a significant amount.

Another potential use will be, very occasionally, using a streaming software like OBS (or something like that) to stream some games in Twitch. Is that RAM intensive or just CPU intensive?

Conclusions:

I guess after reading all this post, the TL;DR is that, for future-proofing my machine, which is going to be my main computer for the next 8 to 10 years, I should really invest the extra 225€ (now the student discount lowers a bit the SSD/RAM upgrade price) in getting the 32GB model. However, the prices of the 1TB/24GB and the 1TB/32GB models are (discount included) 1.325€, and 1.550€ respectively. While 1.325€ is a reasonable price for the machine… 1.550€ is a bit steep for me. That’s why I am asking, to what extent it is advisable to get the 32GB model.

I guess, at the end of the day, what I really should ponder, is wether those 225€ extra are worth it or not. But I think it is not the same spending 1.125€ vs 900€, where the budget can get stretched more easily to the 1.125€ price, that going from 1.325€ to 1.550€, which is already a lot of money, and even though I can buy it, I would feel a bit of remorse. But maybe I feel the same remorse if I get the 24GB and several years down the road I need the 32GB, and we live in an hyperinflation economy where a similarly specced Mac is impossible for me to access to. That’s why maybe now that I could add those 225€ I should aim for a machine that, while it has more RAM that I might need now, it could come in handy in the mid-future.

I am writing this post, because I’m not sure how well future proofed a 24GB machine is, with the uses I have for it now, and may have in the future. With the uncertainty of the future redesigned macOS, the future Apple Intelligence features, the new hobbies and tasks I might eventually get into… Maybe 24GB are still enough, but a bit tight and having lots of swap. And I hate seeing a lot of swap in the SSD because I know that is eating years of life of my system’s SSD. And as I said, I like to multitask and I enjoy responsiveness among my apps.

What would you do, dear forum?

I know this is a highly subjective topic, even controversial (remember when many MR users advocated adamantly for the base 8GB machines because that was more than enough?), but I think it could be helpful for me to read your experiences and opinions.

Thanks for reading.
 
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I guess, it will be wrong no matter what you do! 😂

Since never know what happens with the M5 or even what happens with tariffs, just set yourself a budget and then buy the best you can get with it.
If you want to use the computer for a longer time never be too stingy with RAM.

And always have a look at the Apple refurbished store, maybe you can find something here and save at least a few Euros.
 
I guess, it will be wrong no matter what you do! 😂

Since never know what happens with the M5 or even what happens with tariffs, just set yourself a budget and then buy the best you can get with it.
If you want to use the computer for a longer time never be too stingy with RAM.

And always have a look at the Apple refurbished store, maybe you can find something here and save at least a few Euros.
Hey Suzan, do you think the Apple Refurb store could offer better prices than the student discount on new devices?
 
Potential usages (in the future):

This is just an hypothetical scenario but, as I said, I am planning this purchase for the long term and I plan to use it for 8 to 10 years. I would like to get into amateur music production, which is known to eat a lot of RAM. I am also interested in playing with local LLMs as new, more efficient models are coming through. I also plan to purchase Mac Whisper, and use it with a lot of hours-long audios; I’m not sure how much RAM does Mac Whisper need, but I suspect a significant amount.

If you want to run local LLMs, you should go for 32GB. Even then you'll have to use models with fewer parameters and/or quantized weights. You may also have to adjust a macoS system parameter to allow the GPU to use more than 75% of system RAM to squeeze certain models within that 32GB.

Of course this is an era of extremely rapid AI development and it's unclear how these algorithms and models and therefore their hardware requirements will evolve. No guarantees that 32GB will sufficient in 4 years not to mention 8-10 years. Or vice-versa, AI researchers develop new techniques that only need a fraction of the resources they do currently.

In summary, I would get 32GB for what you outlined but would not count on "future-proofing" for AI beyond ~ 3 years.
 
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Your model is flawed if you think ANY 2025 Mac purchased is future proofed for 10 years. AI these days is still in its infancy. Chips are being redesigned for it on a yearly basis. In its beginning computers were used to compute, it was all about the CPU. Thats where the design focus was for a couple of decades. Then the demand for better games (graphics grew) and design focus shifted, and look at the explosion in graphics has happened... something bought 10 years ago is left far behind. Now there is design focus on AI (and graphics). I think future proofing for 10 years is an unrealistic goal. I am sure a lot of people will point to the past (including yourself) to say its possible, but if you are using an M2 iPad instead of your computer...

anyway, didn't mean to be so blunt... but I do think you should plan for 5 years.

Having said that, 24 gb or 32 when you are discussing AI LLM's ...there is a reason why Apple is selling 512 gb for that purpose. I have heard people say 96 gb is not enough. No doubt there are some models that can be shoehorned into 32 but...not sure how effective that will be. I.E. dont think 32 gb ram will future proof you for AI, its already not enough.

Your other applications, emulators, could benefit from 32 gb. I agree with fishrrman.

I agree with you, especially if you want to keep enough space free for swapping, 1 tb for storage.

I do wonder if you wont regret passing on the M4 Pro versus the M4, especially with emulators.

I hear you, more than you want to spend... but you asked :)
 
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One thing you don’t seem to take into account is that macOS will use as much RAM as you have available.
Just because 16 GB of RAM fills very quickly, doesn’t necessarily mean that you need more.
Don’t pay attention to how much is full, pay a lot more attention to the memory pressure.
You’ll notice no matter how much ram you get, macOS will try to fill it because that’s exactly what it’s designed to do.
Even 32 GB of RAM, it will quickly utilize all of those 32 GB, even if you’re not doing much.

I also wouldn’t worry too much about a redesigned macOS 16 using significantly more RAM, after all they test these new operating systems on older machines.
If it runs fine on an M1 MacBook Air with 8 GB of RAM, it will runridiculously well on an M4, even with just 16 GB.
There’s also no telling that a redesign will be significantly more taxing. It could be less taxing, it could be the same amount as macOS 15, until people are able to start using it annd actually find out for themselves It’s all speculation.
 
OP wrote:
"As I said, even tho I want to keep some free space for the SSD to do its maintenance, I want to keep swap under minimums."

You don't get to choose this.
The OS decides how much swap to use.
The user has no real input. (keep reading)

I'm one of the few members of this forum -- perhaps the ONLY one -- who actually "controls" swap on my Mac (m4 Mini).

I did this by TURNING IT COMPLETELY OFF.
No VM disk swapping... AT ALL.

However, I ordered the Mini with enough installed RAM (32gb) to handle my needs without swapping. And I control how many apps are open at once. Works for me.
 
OP wrote:
"As I said, even tho I want to keep some free space for the SSD to do its maintenance, I want to keep swap under minimums."

You don't get to choose this.
The OS decides how much swap to use.
The user has no real input. (keep reading)

I'm one of the few members of this forum -- perhaps the ONLY one -- who actually "controls" swap on my Mac (m4 Mini).

I did this by TURNING IT COMPLETELY OFF.
No VM disk swapping... AT ALL.

However, I ordered the Mini with enough installed RAM (32gb) to handle my needs without swapping. And I control how many apps are open at once. Works for me.
I’m interested! Disabling the disk swapping implies diabling the integral system protection (or however it’s called) or any other advanced technique?

Have you experienced serious issues such as kernel panicks or freezes when you increase a bit your RAM usage?
 
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