We don’t just love our Macs; we love how reliable they are. If you buy a new Mac, it should give you years and years of enjoyment. But eventually, there comes a day when you notice that something is different.
At that point, you need to diagnose if your Mac is showing signs of old age or if there is a software or hardware problem that, once solved, will have your Mac performing back to its best.
Buying a new Mac is exciting, but is it the right thing to do? If you’re asking yourself, “should I buy a new Mac,” follow this advice to find the answer you’re looking for.
Signs of Mac problems
- Mac is slowing down. Your applications are slower. Your macOS takes longer to boot up. Overall responsiveness is grinding to a halt.
- Mac experiences frequent crashes. Your Mac is experiencing errors, faults, crashes, and even reboots.
- Mac battery life is shortening. A full charge doesn’t last very long. Maybe you even have to work with the charger plugged in.
If you’re experiencing any of the above, read on. We will help you determine whether you need a hardware fix or a software solution.
Do you need a new Mac or a clean Mac?
If you are experiencing a slow Mac, it’s actually possible that your hardware isn’t at fault. A common problem for slow Mac performance is that of an overloaded system. An overloaded system typically has too little free drive space combined with too many applications running in the background, using up your limited system resources.
Let’s see if we can find out why your Mac is not performing at its best.
Things to try before buying a new Mac
Clean up and revive your old Mac manually
Hardware upgrades can be challenging, so let’s start with some easy macOS solutions that anyone can do. For a start, you’re going to want to look at your Mac drives. Your system needs a lot of free space to perform at its best — at least 15-20% of your Mac's drive capacity. So, if your drive is full, it’s time to get cleaning.
You can manually look through your drives and delete old files and folders or even move them to an external drive or the cloud. More free space means more Mac speed. Start by going to System Settings > General > Storage and clicking an i next to each category to see what you no longer need and can delete. Do not forget to empty the Trash after the cleanup.
You should then also look through your installed applications and start uninstalling apps you no longer need. Another great tip is to look at the apps that load on startup, as some of them may not need to run in the background. To remove apps from startup (while still keeping them installed on your system), follow these steps:
- Go to System Settings > General > Login Items & Extensions.
- Select the apps you want to remove from startup and click the “-” symbol.
Clean up and revive your old Mac automatically
A faster and more effective Mac-cleaning solution would be to install CleanMyMac. The name really says it all. This app runs scripts that do everything we mentioned above but faster and more effectively. It has a few tools to optimize your Mac:
- My Clutter will help you identify the best space-saving suspects: large and old files, duplicates, and similar images.
- Applications will remove applications and, unlike when uninstalling normally, will guarantee that no junk files are left behind.
- Smart Care will perform an overall system clean: remove safe-to-delete junk files, malware that may have sneaked onto your Mac, and duplicate downloads. It will also install vital app updates and run maintenance tasks.
Your system should receive a boost after these steps. If not, here are a few more things to check.
Mac still slow? Run Apple Hardware Test.
If your clean Mac is still slow, then it’s time to try a Mac hardware test. This test, developed by Apple, will diagnose your system for any hardware faults. Sort of like Sherlock Holmes working on a crime scene; only the crime scene is your misbehaving Mac.
Apple Hardware Test is for Macs released before June 2013. If your Mac is newer than that, skip to the “Or Apple Diagnostics” section.
Steps for running the Apple Hardware Test:
- Make sure your machine is shut down and then power it on.
- Before the gray screen appears, press and hold the “D” key.
- It will take up to a minute for the test to load, so be patient.
- When prompted, select your language and press “Return.”
If you have a hardware fault, contact Apple Support for advice on how to replace the item.
Or Apple Diagnostics
If your Mac model was released after June 2013, you will need to run Apple Diagnostics to check your Mac hardware.
Steps for running Apple Diagnostics for an Intel-based Mac:
- Make sure your machine is shut down and then power it on.
- Before the gray screen appears, press and hold the “D” key.
- You will receive a “Checking your Mac” screen or be asked to select a language.
- Select the test and wait a few minutes for the results.
For a Mac with Apple silicon:
- Start up your Mac.
- Continue to press and hold the power button as your Mac turns on.
- Release the power button when the startup options window appears.
- Press Command-D to run the Diagnostics.
- Apple Diagnostics will run automatically. When it is complete, it will present a list of the problems encountered.
Important: In macOS Tahoe or later, you will be asked to run a specific diagnostic.
You will see reference codes after the test ends. If Apple Diagnostics finds a problem, you may be presented with Apple Support articles. It’s important to speak to Apple and find out what your options are. You may even be lucky enough to find that the fault is still covered by your warranty.
Although more likely, the warranty expired two days ago. That’s how the universe’s sense of humor works.
Should I buy a new Mac?
If there is no hardware fault and a system clean hasn’t helped, it may be time to accept that you need to upgrade your Mac.
Depending on your Mac specifications, you may be able to replace one or two things to extend the life of your Mac. For instance, if your battery has been causing problems, a new battery could make your Mac feel like new.
The easiest Mac hardware upgrade, which should give a significant performance boost, would be to upgrade your memory (RAM). But unfortunately, you can do it on old Macs only (mainly those released before 2012). Learn more in our Mac RAM upgrade guide.
To buy or not to buy
Life is too short to accept a Mac that is struggling to keep up with you. To make the decision easier, here are a few key takeaways.
When to clean/optimize your MacBook
- Mac age: Your Mac is under 5 years and can still install major macOS updates (e.g., you could upgrade to macOS Golden Gate released in September 2026).
- Storage issues: It is running low on space (the drive is 80+% full) — free up storage.
- Overall performance: Mac becomes sluggish only when multiple apps are open — quit background apps and disable login items.
- Physical condition: Mac fans are loud — physically clean your Mac and test some tips from our guide on how to reduce MacBook fan noise.
- Battery drains quickly, but otherwise everything works fine — replace the battery, especially if its capacity is under 80%. You can check it in System Settings > Battery > Battery Health.
When buying a new MacBook is the right call
- Silicon Architecture: You are still running an Intel-based Mac and your workload demands modern, efficient Apple silicon (M-series) performance. Apple silicon is generally snappier — even Macs with M1 are still fast and can upgrade to the newest macOS version.
- Age: Your MacBook is 7 years or older, and cleaning/optimizing does not help speed it up. At this age, Apple usually no longer supports your model with security updates or major macOS releases (e.g., Intel-based Macs stay on macOS Tahoe and cannot be upgraded to Golden Gate), leaving your data vulnerable or making new software incompatible.
- Unupgradable components: You are running out of space and memory all the time, but cannot replace RAM and drive because they are soldered into the motherboard.
- The 50% repair rule: The cost to fix a major hardware issue (like a cracked screen, failing logic board, or liquid damage) is more than half the price of a brand-new Mac.
- Workflow Evolution: Your daily tasks have graduated from basic web browsing to heavy 4K video editing, 3D rendering, or local AI development, which your current processor physically cannot handle.
If your budget allows it, we would suggest getting a new model. Not only will it perform better from day one, but it will also be a better investment in the long run.
