Our guide to the best desktop PCs and best all-in-one PCs right now, including the best desktop PC under £800 and our tips for choosing the best PC for you.
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.
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.
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.
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.
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David Ludlow: With 18 years of tech writing under his belt, David has reviewed pretty much every single kind of electrical. Among them, David has seen hundreds (if not thousands) of PCs, having spent a good deal of his early years at Computer Shopper magazine, and somehow still isn’t bored of them. That makes him the perfect expert for TrustedReviews.
Michael Passingham: Starting his career testing 10 hulking desktop PCs at a time for Computer Shopper magazine, Michael knows his way around pre-built gaming rigs – perhaps a little too well. Michael is also TrustedReviews' Computing Editor.
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Still not sure what PC is right for you, or maybe considering a laptop instead? Read our best laptop guide for our top picks, or leave a comment with a question below.
For those wanting to buy a gaming PC, we recommend taking a look at our guide to the best graphics cards, our in-depth guide to the best Intel processors and our What is Intel Kaby Lake? explainer. And if you fancy saving some money, read our best gaming PC guide for an introduction to building your own gaming PC.
If you need a new monitor as well, head to our best monitors round-up. And if you have Wi-Fi problems, try our best routers and best Wi-Fi extender guides.
Finally, if you have an ageing laptop in need of some TLC, we recommend reading How to swap your laptop’s hard disk for an SSD. It's the best way to improve a laptop's performance.