Can Raspberry Pi 4 replace Desktop PCs? What I found out while Working from Home during COVID-19 Lockdown.

Last Updated: April 8, 2026 | Tested on Raspberry Pi OS Bookworm (Debian 12) | Applies to Pi 4 and Pi 5

Can a $60–$80 single-board computer replace your desktop PC for everyday work? The short answer is: yes, with some caveats. I tested both the Raspberry Pi 4 and the Raspberry Pi 5 as daily desktop machines – running document editing, web browsing, video calls, and coding – and this article covers exactly what works, what does not, and what you need to set one up properly in 2026.

Table of Contents

1. Pi 4 vs Pi 5 — Which One to Choose for Desktop Use
2. Real-World Desktop Performance
3. Storage: Why You Should Ditch the MicroSD Card
4. Overheating — The Real Problem and How to Solve It
5. Choosing the Right OS for Desktop Use
6. What You Need — Monitor, Keyboard, Mouse, Power Supply
7. The Power Button Problem
8. Verdict — Is It Worth It in 2026?

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1. Pi 4 vs Pi 5 — Which One to Choose for Desktop Use

The original article focused on the Raspberry Pi 4, which was the flagship model at the time. In 2026, the Raspberry Pi 5 is the current recommended board and represents a significant upgrade for desktop use — roughly 2–3x faster in CPU performance due to its Cortex-A76 cores running at 2.4 GHz compared to the Pi 4’s Cortex-A72 at 1.8 GHz. It also introduced a real power button, which alone addresses one of the biggest usability complaints about using a Pi as a desktop (more on this in Section 7).

Here is the practical summary for 2026:

• Pi 4 (4 GB or 8 GB) — still capable for basic desktop use: document editing, email, light browsing. Noticeably slower than the Pi 5 when multiple browser tabs are open. Available at lower prices as stock clears. Choose this if budget is the primary concern.
• Pi 5 (4 GB) — comfortably handles everyday desktop tasks including several browser tabs, LibreOffice, and video calls simultaneously. The recommended minimum for desktop use in 2026.
• Pi 5 (8 GB) — the best Pi desktop experience available. Handles multiple applications open together without slowdown, including Chromium with 10+ tabs, LibreOffice, and a terminal. Choose this if you are serious about using it as a daily driver.

The RAM variants matter significantly for desktop use. Below 4 GB you will run into memory pressure with normal browsing. 4 GB is comfortable for focused single-task work. 8 GB is what you want for genuine multitasking.

2. Real-World Desktop Performance

The most important thing to understand about Raspberry Pi desktop performance is that it is perfectly usable for focused single-task work, but shows its limitations under multitasking pressure. Here is what the experience actually feels like in practice:

Web Browsing

Chromium runs well on a Pi 5 with 4–5 tabs open — pages load at reasonable speed, scrolling is smooth, and Google Docs works without noticeable lag. With 10+ tabs, you will see a slow-down as memory fills and the CPU catches up with background tabs reloading. JavaScript-heavy sites and those with autoplay video are the most demanding. YouTube works at 1080p on Pi 5; 4K YouTube causes stuttering because hardware-accelerated decoding for VP9 (used by YouTube) is not fully supported in all configurations.

Document and Office Work

LibreOffice Writer, Calc, and Impress all run well. Opening large documents takes longer than on a laptop, but once loaded, editing is responsive. For writing, spreadsheet work, and presentations, the Pi 5 performs well enough that most users would not be frustrated. The Pi 4 with 4 GB handles this adequately too, though large files take noticeably longer to open.

Video Calls

Video calls over Chromium (Google Meet, Microsoft Teams web) work on Pi 5 but push the CPU hard. With the camera feed active, screen sharing and other background apps will slow noticeably. For dedicated video call use, it works — but do not expect to also have a document open and a browser tab running in the background simultaneously without some lag.

Coding and Development

This is where the Pi genuinely shines for desktop use. Running a terminal, a text editor, and a Python script simultaneously is well within the Pi 5’s capabilities. Lightweight IDEs like Thonny, Geany, or VS Code (though VS Code is heavy — allocate plenty of RAM) all run. Compiling larger projects is slow compared to a modern laptop, but for typical embedded systems and web development work the experience is acceptable.

One Quirk That Still Exists

On both the Pi 4 and Pi 5, holding down Backspace in LibreOffice or Chromium can cause the system to continue deleting characters briefly after you release the key. This is a known input handling quirk related to keyboard repeat rate settings in Raspberry Pi OS. You can adjust it in the keyboard settings under Preferences → Keyboard and Mouse → Keyboard, reducing the repeat rate until the behaviour disappears.

3. Storage — Why You Should Ditch the MicroSD Card

This is the single biggest upgrade you can make to a Raspberry Pi desktop experience in 2026, and it is something the original article did not cover because the options were limited at the time. Running from a microSD card is the main reason the Pi feels slow as a desktop — not the CPU.

A typical microSD card delivers sequential read speeds of 20–90 MB/s. A decent USB 3.0 SSD delivers 400–500 MB/s. A PCIe NVMe SSD on the Pi 5 (via the M.2 HAT+) delivers 800–900 MB/s. The difference in real-world feel is dramatic — boot times drop from 30–45 seconds to under 10 seconds, application launches are faster, and the system feels far more responsive under load.

Option 1 — USB 3.0 SSD (Pi 4 and Pi 5)

The simplest upgrade for both Pi 4 and Pi 5. Buy any 2.5″ or M.2 SSD with a USB 3.0 enclosure (under £20/$20 total), flash Raspberry Pi OS to it using Raspberry Pi Imager, plug it into one of the blue USB 3.0 ports, and configure the Pi to boot from USB. On Pi 4, you may need to update the bootloader first — run sudo rpi-eeprom-update to check and update if needed. On Pi 5, USB boot is configured directly in raspi-config.

Option 2 — NVMe SSD via M.2 HAT+ (Pi 5 Only)

The Raspberry Pi 5 has a PCIe connector that supports the official M.2 HAT+, which lets you mount an NVMe M.2 SSD directly under the board. This gives the fastest storage of any option and is the setup to choose if you are building a permanent desktop. The M.2 HAT+ costs around £12/$12 and accepts 2230 or 2242 M.2 NVMe drives. After fitting, set NVMe as the boot device in sudo raspi-config under Advanced Options → Boot Order.

# Check current bootloader and storage
sudo raspi-config
# Navigate to: Advanced Options → Boot Order → NVMe/USB Boot

# After setting, verify boot order
sudo rpi-eeprom-config | grep BOOT_ORDER

Strongly recommended: Do not use a Pi as a daily desktop machine on a microSD card. The card will eventually corrupt — especially with constant read/write cycles from a running desktop OS — and you will lose your setup. Use an SSD for any serious desktop or server use.

4. Overheating — The Real Problem and How to Solve It

The original article identified overheating as the biggest issue with using a Pi as a desktop, and this remains true in 2026 — especially with the Pi 5, which runs hotter under sustained load than the Pi 4. Here is everything you need to know to keep temperatures safe.

Monitor temperature at any time with:

# Check temperature once
vcgencmd measure_temp

# Monitor continuously every 2 seconds
watch -n 2 vcgencmd measure_temp

When temperature exceeds 80°C on the Pi 4, or 85°C on the Pi 5, you will see a thermometer icon appear in the top-right corner of the desktop. When it reaches the throttle threshold (around 85°C on Pi 4, 90°C on Pi 5), the OS reduces clock speed to cool the chip — and you will feel the slowdown immediately. The goal is to keep sustained temperature below 70°C under desktop load.

Cooling Solutions — Ranked by Effectiveness

1. Official Active Cooler for Pi 5 (~£5/$5) — the best value cooling for Pi 5. It clips directly onto the SoC and RAM chips with no tools required, has a variable-speed fan, and keeps the Pi 5 below 60°C under sustained desktop load. This is the minimum recommended cooling for Pi 5 desktop use.
2. Argon ONE V3 M.2 case (~£35/$40) — an aluminium case that acts as a passive heatsink with a built-in fan. Includes an M.2 NVMe slot, full-size HDMI ports (converting from micro-HDMI), and a proper power button. The best all-in-one solution for a Pi 5 desktop build.
3. Heatsink + small fan — any decent heatsink kit for the Pi 4/5 combined with a 5V fan on the GPIO pins keeps temperatures manageable at low cost.
4. Heatsink only (no fan) — adequate for light desktop use but insufficient for sustained load. The Pi will still throttle if you run Chromium with multiple tabs for extended periods.
5. No cooling in a closed case — the worst configuration. The original article’s finding that removing the case lid dropped temperatures significantly is still true. Never run a Pi as a desktop in a fully enclosed case with no heatsink.

5. Choosing the Right OS for Desktop Use

The original article referred to Raspbian and NOOBS — both of these names are outdated. In 2026 the OS landscape is as follows:

Raspberry Pi OS (Bookworm) — Recommended

Raspberry Pi OS Bookworm (Debian 12), released in 2023 and updated continuously, is the current official OS and the best choice for desktop use. It comes in three versions — Lite (no desktop, command line only), Desktop (PIXEL desktop, no extra software), and Full (Desktop plus recommended applications). For desktop use, start with Desktop and install only what you need. The Full version includes software aimed at education users that most desktop users will not need, and it uses more memory.

Always flash the 64-bit version. The 32-bit version limits how memory is used by individual applications and cannot load many modern libraries. Confirm after booting by running uname -m — you should see aarch64.

Ubuntu Desktop for Raspberry Pi

Ubuntu 24.04 LTS for Raspberry Pi is a viable desktop alternative if you are already familiar with Ubuntu on a PC. It runs well on Pi 5 with 8 GB RAM but is more resource-hungry than Raspberry Pi OS. The GNOME desktop environment it uses by default is heavier than PIXEL — for the best performance on Pi 4, install Ubuntu Server and add a lighter desktop like XFCE on top.

What About Raspbian?

Raspbian is the old name for Raspberry Pi OS. They are the same OS — the name changed when the Foundation began supporting 64-bit. If you see tutorials referring to Raspbian, they are using older terminology but the instructions generally still apply to Raspberry Pi OS. NOOBS has been discontinued entirely — use Raspberry Pi Imager instead, which is faster, simpler, and lets you preconfigure WiFi and SSH before flashing.

For a full breakdown of the best OS options and what each is suited for, see our guide: Best Raspberry Pi OS in 2026 — Which One Should You Use?

6. What You Need — Monitor, Keyboard, Mouse, Power Supply

Monitor

Both the Pi 4 and Pi 5 use micro-HDMI ports — not full-size HDMI and not mini-HDMI. This catches many people out. You need either a micro-HDMI to HDMI cable, or a micro-HDMI to HDMI adapter. Both Pi 4 and Pi 5 have two micro-HDMI ports, supporting dual monitors simultaneously at up to 4K@60Hz. If you are only using one monitor, either port works.

Any HDMI monitor works. If your monitor only has DisplayPort, a passive HDMI-to-DisplayPort adapter does not work — you need an active adapter. For a cleaner setup, the Argon ONE case converts both micro-HDMI ports to full-size HDMI on the back of the case.

Keyboard and Mouse

A USB keyboard and mouse connected to the two black USB 2.0 ports (the outer two on Pi 4, leftmost two on Pi 5) is the simplest setup. Reserve the blue USB 3.0 ports for SSDs or other high-speed devices. A single USB wireless receiver (like the Logitech Unifying receiver) lets you use a wireless keyboard and mouse while using only one USB port.

Bluetooth keyboards and mice work but require some care on setup. Most modern Bluetooth 5.x peripherals pair fine with the Pi 5. Some Bluetooth 4.x devices have pairing issues — if a Bluetooth device fails to pair, try a USB receiver alternative instead.

Power Supply — Do Not Cheap Out Here

Use the official Raspberry Pi power supply. For Pi 4, this is the 15W USB-C supply. For Pi 5, this is the 27W USB-C supply. Using a phone charger or underpowered supply causes a lightning bolt icon to appear in the top-right corner of the desktop, indicating under-voltage — the Pi will throttle performance and become unstable. This is one of the most common reasons people think their Pi is slow or crashing, when the real cause is a bad power supply.

7. The Power Button Problem — Now Solved on Pi 5

The original article flagged the lack of a power button as a significant usability issue for desktop use. On the Raspberry Pi 4 and earlier, the only way to power on the Pi was to plug in the power cable, and the only safe way to shut down was to run sudo shutdown -h now from a terminal or use the desktop menu — then wait for the disk LED to blink 10 times before unplugging.

Pulling power before Raspberry Pi OS has fully shut down can corrupt the filesystem on the SD card or SSD. This is a real risk on a Pi 4 being used as a desktop where family members or colleagues might just unplug it.

The Raspberry Pi 5 has a dedicated power button built in for the first time. A short press initiates a clean shutdown. Pressing it again powers the Pi back on. This completely resolves the usability issue for desktop scenarios. If you are using a Pi 4, you can add a physical power button by soldering to the J2 header pads on the board, or by using a case like the Argon ONE that includes a built-in power button wired to the GPIO.

Additionally, if you are running Raspberry Pi OS as a desktop and want a graceful shutdown without going to a terminal, you can also use:

# Shut down immediately
sudo shutdown -h now

# Restart
sudo reboot

# Schedule shutdown in 5 minutes
sudo shutdown -h +5

8. Verdict — Is It Worth It in 2026?

Yes — with the right setup. Here is the honest breakdown of when it makes sense and when it does not.

The Raspberry Pi Desktop Makes Sense For:

• A dedicated project workstation — a Pi permanently connected to a monitor at your desk for coding, SSH management, and documentation, alongside a more powerful main machine
• A low-power always-on workstation — the Pi 5 at full load draws 5–8 watts versus 50–150 watts for a desktop PC, making it ideal for tasks that run continuously (a file server, a home automation dashboard, a local AI server)
• Learning Linux and the command line — an excellent environment that is low-stakes enough to experiment freely
• Budget-constrained setups — a complete Pi 5 desktop setup (Pi + SSD + case + peripherals) can be assembled for under £150/$150, which is hard to match for a functional Linux desktop
• Children’s computing — robust, replaceable, and educational

The Raspberry Pi Desktop Does Not Make Sense For:

• Video editing or graphics work — no discrete GPU, no hardware-accelerated encoding pipeline for most formats
• Running Windows applications — Raspberry Pi OS is Linux only. If you need Windows, look at the Radxa X4 instead (see our Raspberry Pi Alternatives guide)
• Heavy browser users — if you habitually have 20+ tabs open across multiple browser windows, you will be frustrated
• Users who need specific software — check that your critical applications have ARM64 Linux versions before committing. Most open-source software does; most commercial Windows software does not

The Recommended Desktop Build for 2026

• Raspberry Pi 5 (8 GB) — ~£80/$80
• Official Active Cooler for Pi 5 — ~£5/$5
• M.2 HAT+ with a 128 GB NVMe SSD — ~£25/$25 total
• Official 27W USB-C power supply — ~£12/$12
• Micro-HDMI to HDMI cable — ~£5/$5
• USB keyboard and mouse — any budget option works
• Total: approximately £127/$127 for a functional Linux desktop that runs cool, boots fast, and handles everyday work tasks without frustration

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Related Guides

• What is Raspberry Pi? — Complete beginner guide to the Pi hardware and setup
• Best Raspberry Pi OS in 2026 — Full comparison of OS options for different use cases
• Run AI on Raspberry Pi — Use your Pi desktop as a local AI server with Ollama
• Raspberry Pi Connect — Access your Pi desktop remotely from anywhere
• Fix raspi-config Errors — Common setup problems and fixes
• Raspberry Pi Alternatives — If you need Windows or x86, here are better options
• 11 Things You Can Do with a Raspberry Pi — More project ideas beyond desktop use

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Written by Jithin at RootSaid. Last updated April 8, 2026. Original testing conducted on Raspberry Pi 4 (4 GB and 8 GB). Updated for Raspberry Pi 5 and Raspberry Pi OS Bookworm. Have a tip or a specific use case question? Leave it in the comments.