All-in-one, mini PC or tower: which desktop computer suits you?
Three shapes of desktop computer, what each does well, and how to choose between them.
- Format
- Showdown
- Read time
- 3 min
- Updated
- Written by
- Vorax
Choose an all-in-one for a tidy desk, a mini PC for office work in very little space, and a tower for gaming, heavy work and upgrades. All three can handle everyday tasks. The difference is how much performance you can get, how easy the computer is to upgrade, and what else you need to buy with it.
Desktop computers come in three main shapes. They can share the same processor and memory, yet suit very different desks and jobs. Here is how they compare.
The three at a glance
| All-in-one | Mini PC | Tower | |
|---|---|---|---|
| Desk space | One unit, one power cable | Smallest. Often mounts behind a monitor | Largest. Sits on or under the desk |
| Screen included | Yes | No | No |
| Top performance | Moderate | Moderate | Highest |
| Dedicated graphics card | Rare | Rare | Common |
| Upgrades | Limited | Memory and storage on most | Almost everything |
| Power use | Low | Lowest | Highest |
| Best for | Reception desks, home offices, family computers | Office work, study, media, digital signage | Gaming, editing, engineering, long-term upgrades |
All-in-one PCs
An all-in-one builds the computer into the back of the screen. A webcam, speakers and microphone are usually built in as well, so setup is a matter of plugging in one cable.
- Strengths. A clean desk, a quick setup and one neat unit for shared spaces.
- Limits. They use laptop-class parts to stay slim, so they are not built for gaming or heavy creative work. Upgrades are limited.
- Worth knowing. The screen and the computer are one unit, so you cannot replace one without the other.
Browse all-in-one PCs.
Mini PCs
A mini PC is a complete computer that fits in one hand. Many can be mounted behind a monitor, which gives an all-in-one look while keeping the screen and the computer separate.
- Strengths. Very small, quiet and efficient. You choose your own monitor and can replace either part later.
- Limits. Graphics are usually built into the processor, so they suit work and media more than modern games.
- Worth knowing. Their low power draw makes them easier to keep running through a power cut on a small backup unit.
Some mini PCs are sold as barebone units, without memory, storage or an operating system. Check the product title and specifications so you know what is included.
Browse mini PCs.
Tower PCs
A tower has the space and cooling for desktop-class processors and a dedicated graphics card. It is the only one of the three that handles modern games and heavy workloads well.
- Strengths. The most performance, and nearly every part can be upgraded or replaced later.
- Limits. It takes more space and uses more power.
- Worth knowing. A monitor, keyboard and mouse are usually sold separately.
Browse gaming PCs, or see the full range below.
Which one for which job?
| You want to | Choose |
|---|---|
| Set up a reception desk or family computer with no clutter | All-in-one |
| Do office work or study in a small space | Mini PC |
| Keep your existing monitor | Mini PC or tower |
| Play modern games | Tower with a dedicated graphics card |
| Edit video or run engineering software | Tower |
| Upgrade parts over the years | Tower |
Whichever shape you choose, the same basics apply: 16GB of memory and an SSD keep a computer feeling quick for years.
Before you order: a quick checklist
- I know whether a screen is included
- I know whether a keyboard and mouse are included
- I have checked which operating system is installed, if any
- It has enough memory and storage, or room to add more
- It has the ports I need for my screens and devices
- If I want to game, it has a dedicated graphics card
Frequently asked questions
Are mini PCs good for office work?
Yes. A mini PC with a current Core i5 or Ryzen 5 processor, 16GB of memory and an SSD handles office software, video calls and many browser tabs comfortably.
Can you game on a mini PC or an all-in-one?
Light and older games, yes. Most use graphics built into the processor, so modern games need a tower with a dedicated graphics card.
Can an all-in-one PC be upgraded?
Usually only the memory and storage, and on some models not even those. If upgrades matter to you, choose a tower.
What does barebone mean?
A barebone PC is sold without some parts, typically memory, storage and an operating system, so you can add your own. Check the listing to see what is included.
Does a desktop PC come with a monitor?
An all-in-one does, because the screen is part of the computer. Mini PCs and towers are usually sold without one.
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