Best Desktop PC 2018: The best all-in-one PCs and desktop computers for all budgets

This is why you should trust our list of the best desktop PCs:

We’ve been reviewing desktop PCs since 2003, when Trusted Reviews first opened its doors. Since then our team of experts has reviewed more all-in-one, tower and lounge PCs than can easily be counted. All our reviews are unsponsored, so all our buying advice is honest and impartial as a result.

We may, however, make some money if you click one of the links to buy a desktop PC. That means we want you to be happy with your purchase, so you come back to us again the next time you need something.

best overall desktop

Apple iMac with Retina 4K display

This is our pick for the best overall desktop you can buy. Keep in mind it's an all-in-one, which goes some way to justify its lofty cost. Performance is also exceptional and the screen is fantastic for creative professionals in particular.

£1,399.97
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We’re in the midst of testing the first batch of new desktop PCs to arrive this year. Our current recommended best overall desktop PC is the 21.5-inch 4K iMac, which offers the finest all-round performance and design. If you’re after something a little cheaper the HP Pavilion Wave is the best-value desktop PC to arrive last year.

best value desktop

HP Pavilion Wave

Not only is the Pavilion Wave eye-catching, it's also great value. It's actually also a high-end B&O wireless speaker alongside a desktop PC. The discreet PC is powerful enough for most uses, too.

£699.99
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How we test desktop PCs

Every desktop we test is put through a series of synthetic benchmarks to gauge its CPU, graphics, SSD and overall performance. While testing we also measure for heat and noise. From there we check how it handles key tasks based on its target market. If it has a GPU tests include gaming, photo and video editing and 3D modeling. If it’s an all-in-one we use a colorimeter to check its screen’s performance.

After that we crack open the case and see how easy it is to upgrade. After all that we use it for at least a week as our main work PC before giving it a final score.

iMac 2017

21.5-inch 4K iMac

Pros:

  • Stunning screen
  • Powerful processor
  • Near-silent running
  • Good graphics performance
  • Excellent peripherals

Cons:

  • Needs an SSD
  • Measly 8GB of RAM

The 21.5-inch iMac is the best small all-in-one you can buy. Its price is high, but more than any other Mac product, Apple has been able to easily justify the lofty cost.

Performance from the quad-core processor is exceptional, while the AMD graphics can power 3D applications and games at Medium settings with relative ease. The whole thing whispers along, as well, with its cooling fans barely audible no matter what you’re doing. This is a near-silent powerhouse.

The screen, meanwhile, is excellent, covering 100% of the sRGB colour gamut and 98.6% of the DCI-P3 gamut used some video production settings.

We don’t really like the 1TB Fusion Drive and would strongly recommend paying a bit extra for a nice, fast SSD. You can upgrade to a 256GB SSD for £90, something we reckon is worth paying.

Buy now: 21.5-inch 4K iMac for £1,400 from Amazon

HP Pavilion Wave 8

HP Pavilion Wave

Pros:

  • Stylish design
  • Powerful integrated audio
  • Decent processor and SSD performance

Cons:

  • Very basic mouse
  • Premium price

Few PC manufacturers design desktops to look different, which is why it’s so refreshing to see the HP Pavilion Wave. With its spherical body and B&O branding on the front, it looks a little like a high-end wireless speaker. Actually, it is.

A single driver at the top fires upwards into a parabolic reflector that shoots audio out at 360 degrees. The result is powerful audio with very little need to plug in external speakers.

There’s always a danger of form overtaking function, but that’s not the case here. A low-power quad-core Core i5 processor is only a little slower than a full-fat desktop version. With a fast 128GB SSD and 1TB hard disk, there’s a great combination of performance and disk space. And the PC remains quiet in use.

If you want a stylish PC that you connect your own peripherals and display to, there’s very little choice; it’s lucky, then, that the Pavilion Wave is so good.

A better spec in a bigger case would cost a lot less, and the bundled mouse is very basic, but this is still a great machine.

Buy now: HP Pavilion Wave for £699.99 from Amazon

Zotac Zbox Magnus 15

Zotac ZBOX Magnus EN1060

Pros: 

  • GTX 1060 gaming power
  • Small, subtle and sturdy design
  • Cool and quiet

Cons:

  • Expensive for a barebones PC
  • Mediocre RAM options
  • GPU isn’t as fast as proper GTX 1060

The general thought about gaming PCs are that they’re powerful but cumbersome. The Zotac Zbox Magnus proves that this doesn’t have to be the case.

Rather than a full desktop machine, this is a barebones PC. That means that you get the case, power supply, motherboard, low-power Core i5-6400T and GeForce GTX 1060 graphics card. To complete the PC, you’ll need to buy laptop-sized DDR4 SO-DIMMs, storage (there’s an M.2 slot and 2.5-inch bay for SSDs) and a copy of Windows.

When built, the Zotac Zbox Magnus is a capable gaming PC. Although the GeForce GTX 1060 is a cut-down model, this computer can handle everything bar 4K gaming. It may be expensive, but if you want a tiny gaming rig to sit under your TV, it’s a great choice.

Alienware Aurora

Alienware Aurora

Pros:

  • Review spec is decent value
  • Good-looking case
  • High-end graphics and processing performance
  • Generous warranty

Cons:

  • Upgrades are very expensive
  • Case should be smaller

The Alienware Aurora is the company’s mid-range gaming PC, but don’t expect mid-range performance, as the PC comes high-end components.

Every time we update this round-up, Dell seems to change the specifications available. Right now, our choice for best-value is the second-tier model that comes in at £979. That comes with a quad-core Core i5-6400 processor and a GTX 1070. However, using Dell’s online customisation options, we switched out the slow hard disk for a much faster, 256GB SSD and dropped the HDD to the secondary slot for an extra £140.

As a result, the spec listed above, is the best value. It’s still a fast computer, too. The GeForce GTX 1070 graphics card is very fast and the word when it comes to 1440p gaming; it will even handle some titles in 4K.

If you fancy somehting faster, the £1499 model (at the time of writing) nets you a quad-core Core i7 6700, a GTX 1080 and a 512GB SSD.

With the model reviewed, the Aurora is a great value PC that’s fast in games and on the desktop, and it looks great, too.

Buy now: Alienware Aurora for £1,559.99 from Amazon

Lenovo IdeaCentre AIO 910

Lenovo Ideacentre AIO 910

Pros:

  • Excellent screen
  • Game-ready dedicated graphics
  • Stylish design

Cons:

  • Not silent when idle
  • Slightly slow SSD
  • Poor-quality mouse

It’s hard to find an all-in-one that can do everything, but the 27-inch Lenovo Ideacentre AIO 910 certainly can. A low-power quad-core Core i5 CPU is a step up from the dual-core models that a lot of all-in-one computers use. It means that most photo editing and a bit of light video editing are well within reach.

An Nvidia GeForce 950A discrete graphics chip, fitted with 2GB of GDDR5 memory, turns this all-in-one into a relatively capable Full HD games machine, too.

Lenovo has used a 4K (3840 x 2160) touchscreen display. The PC’s trick is that the flexible stand can lay the screen practically flat, making the touchscreen easier to use. A quick SSD and mechanical hard disk round the system off, giving you a great combination of storage space and performance.

A more expensive model with a Core i7 CPU, and cheaper Full HD models are available, but this spec is the best value in our opinion.

Buy now: Lenovo Ideacentre AIO 910 for £849 from Amazon

Corsair One

Pros:

  • Dinky dimensions
  • Ultra-quiet
  • Great performance
  • VR-ready

Cons:

  • Luxury pricetag
  • No M.2 SSD option
  • Difficult to upgrade

Corsair has stormed into the lounge PC market with the Corsair One. It’s rare for a first product in a new line to succeed as well as the Corsair One has, which is worth commending. It’s an ultra-powerful, super-quiet lounge PC that’s probably the classiest piece of PC design we’ve ever seen.

With a top-end Core i7 processor on-board along with Nvidia GeForce GTX 1080 graphics, this will handle the latest games at ‘High’ settings for years to come. It is expensive, but the design, build and technology that’s gone into it just about justifies it.

Buy now: Corsair One for £1,811 from Amazon

Those are our top picks of the best desktops. If you want to know more about what to look out for when buying a desktop pc then read on.

How much should I spend on a desktop PC?

If all you need a basic PC, £350 is enough to buy a Intel Core i3 PC with 4GB of RAM and a 500GB mechanical hard drive. This will be more than sufficient for basic office and web tasks, but don’t expect to play games at high resolutions with loads of detail.

Related: The best CPUs for gaming, tested

You’ll need to spend around £500 to £800 to get a more powerful desktop, with a Core i5 processor, 8GB or 16GB of RAM and an SSD – a faster type of drive that improves performance – plus traditional mechanical hard disk for storing your photos and videos. You can expect a GTX 1050 graphics card, which will be good enough to play most games, even at Full HD resolution gaming.

If you want a proper gaming PC, you need to spend £1000 upwards. This kind of money will get you a Core i7 processor, and an Nvidia GeForce GTX 1070 or GeForce GTX 1080 graphics card. These PCs will cope with all tasks, and will easily play games at 1440p resolution, with more expensive models even managing 4K resolutions – check online benchmarks to make sure your chosen model can handle the games you want.

For all desktop PCs, you can expect to pay an extra £100 plus for a Full HD monitor, and more for higher-resolution models.

 Head to our entry on boutique PC builders below to find out where to buy a custom PC.

Related: Best Monitors

For an all-in-one, you’re looking at a starting price of around £600 for a 24-inch model with a Full HD screen. Powered by efficient dual-core or quad-core Core i5 or Core i7 processors, these machines are suitable for light photo and video work.

If you want premium design, a larger screen and more resolution (up to 4K), expect to pay at least £1000, but up to £2000.

Related: Best VPNs tested

If you want to play games, look for ‘discrete’ or ‘dedicated’ graphics from AMD or Nvidia, and check out our benchmarking figures to see how well your favourite games will play.

Desktop PC vs All-in-One: Which should you buy?

Generally speaking, traditional desktop PCs are cheaper, more powerful, have room for upgrades and are a little more flexible, letting you connect to any monitor, for example. The downside is that they’re often a little uglier and take up more room.

All-in-ones are neater, with everything contained inside a single box that also houses the monitor. Upgrading (aside from RAM, in some cases) is usually out of the question. You tend to pay more for an all-in-one and, as low-power components are used, performance is more in line with that of a laptop. However, all-in-one computers are neater than desktops.

The world of all-in-one PCs just got massively spiced up by Apple, which announced a completely overhauled range of iMacs and the brand-new iMac Pro. This pro-level beast of a machine can squeeze in up to 18 Intel Xeon CPU cores and the latest AMD Vega graphics hardware, along with a monstrous 27-inch 5K panel. Reserved entirely for professionals, this is likely to be the new standard for all-in-one PCs when it launches in December.