Can a Raspberry Pi 4 really Replace your Desktop PC? (I Tried)

can you use a rapsberry pi 4 as a desktop pc?

Raspberry Pi 4 has been there for a few months
I read everywhere in the news that it’s almost a normal PC
But no one really tried it, they just repeat the same thing again and again
My goal is to go further. I replaced my laptop with my Raspberry Pi 4 for a few days and I will now explain if you can really sell your computer and buy a Raspberry Pi 4 instead.

Is a Raspberry Pi 4 really able to replace your desktop PC?
The Raspberry Pi 4 release was exciting for me, and all Raspberry Pi fans
But before doing the big jump, you have to consider some critical points:

  • Minimum budget: we always hear about a $35 device, but what’s the true price?
  • Global performances: what about processor, RAM and storage?
  • Desktop environment: is Raspbian ready to be used as your main operating system?

I will take each point of this list, give you the facts and my opinion at each step
At the end of this test, you’ll know if Raspberry Pi is ready to become the new desktop computer (or not)

My setup

As you probably know, Raspberry Pi 4 is available with three RAM options: 1 GB, 2 GB or 4 GB
Here is my setup for this test, so you know exactly what I’m reviewing:

  • Raspberry Pi 4 single board with 4 GB RAM
  • A case with an integrated fan: you probably need a fan, I’ll come back to this later
  • A Samsung Evo+ SD Card (32 GB)
  • A desktop mouse and keyboard: not my small Bluetooth keyboard, I needed a comfortable keyboard to work with
  • A generic Samsung USB charger (I already have one for my smartphone, you can choose the official one or the CanaKit version if you prefer)
  • A micro HDMI – HDMI adapter (I didn’t try the dual screen for this test)
  • Raspberry Pi Desktop: I voluntarily choose to not take the full version, so I have the basics and will install only what I need from the recommended software. The Lite version is also a good choice I think, you’ll install only the software and desktop environment you want.

Items without direct link are available in my recommended products pages if you want to see exactly what I’m using

My Raspberry Pi 4 in its case

So, I may not have the ultimate setup for a Raspberry Pi, but that’s enough for my needs
I will come back to the options you have in the next chapter

Raspberry Pi 4 budget

If you don’t yet know this, here is a quick reminder: the $35 computer is a lie ๐Ÿ™‚
Yes, you can get a Raspberry Pi 1 GB for $35, but you can’t do anything with the motherboard only (2 GB for $45 and 4 GB for $55)

Then you have to add all the accessories (case, fan, SD card, adapters, power input, etc.)
My setup as a total cost close to $75, and I’m using my old keyboard, mouse, screen and HDMI cable
If you start with nothing, $150-$200 is a more realist budget

Ok it’s cheap for a computer, as you’ll not get anything perfect with $200
As an example, a Chromebook with a Celeron processor, 2 GB RAM and 16 GB SSD is probably your best choice under $200

But can a Raspberry Pi 4 compete with a cheap Chromebook?
That’s what we’ll see in the next chapter

Raspberry Pi 4 performances to expect

Processor

The Raspberry Pi 4 comes with a new processor, the Broadcom BCM2711, providing 1.5Ghz on a quad core architecture in 64 bits
The goal here is not to do a benchmark of this processor, but I read that it could be 2 to 5 times more powerful than the Raspberry Pi 3 B+ CPU

It’s one of the big benefits of this new Raspberry Pi model, but I need facts to see how it works on a daily basis

Memory

The possibility of getting more RAM on Raspberry Pi is also a good news
I made the same test with the Raspberry Pi 3B+, and the lack of memory was the biggest problem I had
I was unable to use a web browser correctly because of this

I hope now that the 4 GB DDR4 memory I have on my Raspberry Pi will solve this issue
In any case, it’s similar to what you can get on a standard PC

Storage

There is no disk on a Raspberry Pi, so it’s not really depend on the new version I’m testing today
But it’s good to say that SD cards are evolving simultaneously, and you can now get almost the same disk space than on a desktop computer

My favorite SD card model, Samsung Evo Plus, is now available at 256 GB and 512 GB for a decent price
It’s even cheaper than an SSD disk

You just have to know that a SD card is not as secure as a standard hard drive
So it’s more important than ever to back up your Raspberry Pi files
To do this, you can use an external hard drive like this one on Amazon
You can even keep one plugged if you need more storage space

Check my guide on how to back up a Raspberry Pi to learn more about this

Connectivity

Finally, just a quick note about the Raspberry Pi 4 connections
Even if this has been an issue on older models, this Pi has everything you can expect from a desktop PC:

  • Gigabit Ethernet network card
  • Wi-Fi 802.11ac (2.4 or 5Ghz)
  • Bluetooth 5.0

So it’s perfect for me, I have everything I need

Raspbian Desktop: Interface

What’s new about the interface?

Raspbian has been updated from Stretch (Debian 9) to Buster (Debian 10)
You need Raspbian Buster to use the Raspberry Pi 4
So if your goal is to use your SD card from another model, you need to update your system before booting on Raspberry Pi 4

These changes bring many new features and optimizations, but for the end user, it doesn’t change much
They redesigned the overall look, but the interface is almost the same, no major changes
If you need more information about the Raspbian Buster installation and configuration, click on the link to see my post on the subject

To go back to the topic of this post: is the Raspbian interface ready to be used for a desktop?
I think so, it’s similar of what you can get on Debian or Ubuntu for example, which target desktop users

My interface choice

Even after this redesign, I don’t really like the default interface
So same thing as on Raspberry Pi 3, I installed XFCE to get a beautiful interface, more tools and all of this in a lightweight environment
It’s a personal choice, you can choose the environment you prefer

Here is what it looks like if you want to test it (Adwaita-dark theme):

Raspbian Desktop: Applications

Goal of this test

When I tested the Raspberry Pi 3B+ to replace my computer, I already made a list of interesting apps to try
You can find this post here, the apps I want to install now are almost the same, so I will not go in too many details
The goal here is to see if the Raspberry Pi 4 is better than Raspberry Pi 3B+ for a daily usage
I remember having issues with some apps while doing the same test on Raspberry Pi 3B+, so I want to know if these problems are solved or not

Tested applications

I tried the new “Recommended Software” tool, but I only installed LibreOffice with it
As I want to use the Raspberry Pi to work, I don’t need other Raspberry Pi tools (I mostly program in PHP, not in Python)

After installing XFCE4 (see the previous part), I had to install applications that I need or that I think people may use on their desktop
I choose to install the following packages:

  • Mozilla Firefox (ESR) and Thunderbird: I’m using Google Chrome (so Chromium was fine) and Gmail in webmail, so I didn’t really need this, but I added them to the test, to make sure it could work for someone that need it
  • My developer tools: Filezilla, Visual Studio Code and RapidSVN
    Visual Studio Code is my favorite code editor, but is not available in the default repository, and my tip with Heatmelted doesn’t work yet on Buster, so I had to find another editor
    I choose to use Geany, as it’s already installed, and I was using it before Visual Studio Code
  • Image editor: Hum Photoshop? Not really, the Raspberry Pi can’t run it, the operating system and overall performances doesn’t make Photoshop a good idea ๐Ÿ™‚
    Gimp is probably the best alternative to get almost the same features, but I don’t like the interface, so I tried Inkscape and Pinta
    Inkscape seems very close to the Photoshop features, but a bit complicated for what I’m looking for, so Pinta is better for me
    There are many apps available for image editing, so you’ll probably find the best app for you
  • Media players: Raspberry Pi is often use as a media center, so you have many choices to play audio or video files on it. VLC is installed by default and manage most of the media files. But depending on your needs, you can also install Kodi, Volumio or QMMP to play music and videos
    And the good news is that YouTube is working perfectly, 4K and HD sounds are available on Raspberry Pi 4

That’s it for basic apps you may want to use on Raspberry Pi
I know that everyone needs different apps for different usages, my goal was not to have an exhaustive list, but to test it in a basic usage and see how it goes

My thoughts about this test

I’ll now give you my opinion about this test

Applications

Globally, I’m impressed by this Raspberry Pi 4
My Raspberry Pi 3B+ test as a desktop PC was a failure.
If I remember well, I could not use several apps simultaneously, probably because of the lack of memory available
But on a Raspberry Pi 4, it worked pretty well

I still had a few issues, it’s not yet perfect, but they are not so important
I noticed that apps were a bit slow to shows up, but once started it was OK
Here are a list of problems I got, and the solutions I suggest:

  • I tested Firefox ESR, the only version available in the default repository. But it was a failure. It’s not a performance issue, but many sites will see you as an old mobile device, so you get mostly text page, even on Google or Amazon.
    Solution: Chromium works perfectly, I managed to synchronize my account (bookmarks, passwords, extensions, etc.). It was OK, not the faster computer, but speed was quite tolerable
  • Thunderbird succeeds in synchronizing my email account, but CPU usage was a bit high I think. If you have a big account, you probably need to find a lighter solution for your emails.
    Solution: a webmail is probably the best option
  • I chose Pinta for my image editor software, but I had many issues with it. The app crashed too often for me, it was not a good experience.
    Solution: I finally installed Gimp, and it was not so bad. I had bad memories about it, but I probably never tested it for a few years, and the version 2 seems correct. A little time to adapt my habits, but good solution I think.

To resume, every issue has a solution. For a basic usage you can absolutely try the Raspberry Pi 4 as a desktop PC
The apps I mention in the last part but not here are working fine

Finally, the main issue now is probably the move from Windows/macOS to Linux, and it no longer a hardware issue
It’s ok for IT guys like us, but your mother may not be happy to change their habits
You can’t run any Linux apps on Raspberry Pi 4 (Firefox, Spotify or Visual Studio Code are not available for example), but you have enough choices to find a decent alternative

Temperature?

A quick word also about the temperature
This topic made a big debate in the weeks following the Raspberry Pi 4 release
I have a cheap case with a small fan on it, and I don’t have any issue with the temperature. I don’t think it exceeded the 60 °C (140 °F) during the test, so no problem with this setup for basic usage (maximum temperature is 85 °C / 185 °F)

For you, I made a test without the fan
After a few minutes, the temperature was a bit higher (around 70 °C, 160 °F), and my case is open
So it’s probably better to use a cooling system, fan or passive thermal control
Here are a few solutions you can try:

Conclusion

That’s it, you now have a better understanding of what the Raspberry Pi 4 can do, and especially what you can expect from it as a desktop PC

After these few days on Raspberry Pi, I’m happy to go back to my laptop but I know that I can use it as a backup PC
If someone asks me the cheapest PC available on the market with decent performances, I’ll probably suggest the Raspberry Pi 4 as a good solution
But don’t forget the limits, it’s Linux, it’s Raspbian and you should not expect too much of it

Did you already tried to use the Raspberry Pi 4 as a desktop PC for longer than me? Anything to add? (strong or weak point)

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