Skip to main content

What is an APU? Should you buy one for your PC?

What is an APU? AMD's new hybrid CPUs: Explained

AMD Ryzen 5 2400G & Ryzen 3 2200G Review fingers
Bill Roberson/Digital Trends
Although Intel has offered most its central processors with onboard graphics for some time, AMD has only done the same with distinctive product lines. Where its mainstream CPUs, even the latest Ryzen offerings, don’t offer any kind of built-in graphics, its accelerated processing units (APUs) do.

But what is an APU, and is it really any different from what Intel offers with its processors? The core concept of an APU is blessedly simple: An APU combines the functionality of a CPU and a GPU, two pieces of hardware found in basically any computer.

Two halves make a whole

The central processing unit, or CPU, carries out all the instructions for computer programs. Every action you take on your computer, whether running a game or simply typing a letter, must go through the CPU.

The graphics processing unit, or GPU, is a piece of hardware that allows a computer to render images quickly. Creating 3D images often involves complex processes like rendering polygons, mapping textures, and using complicated equations involved in animation. Offloading these to dedicated hardware makes 3D images much quicker to produce.

AMD Ryzen 5 2400G & Ryzen 3 2200G Review fingers motherboard
Bill Roberson/Digital Trends
Bill Roberson/Digital Trends

By integrating the CPU and GPU into a single unit, the APU produces a better transfer rate between the two, allowing them to share the burden of processing tasks. This also allows the APU to complete tasks while using less power than a standard CPU and graphics card setup and ensures a certain base level of graphical capability, which makes the overall user experience better. Most importantly, it means you don’t have to purchase a separate graphics card, which drastically lowers the overall price of your PC.

None of this is really any different from what Intel does with its CPUs though, even if AMD likes to call its chips that feature both cores something a little different. Most of Intel’s recent architectures from its seventh and eighth generations, combine CPU and GPU functionality on a single die. Essentially, any modern processor you purchase these days will be an APU, even if it doesn’t bear the name. That doesn’t, however, mean they’re all made equal.

But are they worth it?

Although Intel chip buyers will almost always get themselves an on board graphics die whether they want one or not, AMD buyers have a choice. Do they buy a dedicated AMD CPU — preferably from the latest generation of Ryzen processors — or opt for an APU, like the new Ryzen with Vega chips? If you’re a gamer, even on a modest budget, you’re much better off opting for one of the best CPUs with a dedicated graphics card. Although that option is more expensive, the performance offered by both an independent processor and stand-alone video card is much better.

APUs have their place, perhaps with non-gamers and those on extremely low-budgets benefiting from the lack of a need for a dedicated graphics card. However, we’ve yet to see an APU that

Editors' Recommendations

Topics
Jon Martindale
Jon Martindale is the Evergreen Coordinator for Computing, overseeing a team of writers addressing all the latest how to…
There are two sizes of MacBook Pros. Here’s the one you should buy
MacBook Pro laptops.

MacBooks are among the best laptops you can buy, but there are some critical differences between Apple's two MacBook Pro models.

The 14-inch MacBook Pro is a relatively new arrival on the market, with a bigger screen size than the now-discontinued 13-inch model. The 16-inch model was a refresh of the existing MacBook Pro, but there were enough changes to call it a new laptop entirely. Both of them are worthy of being listed among the best MacBooks out there, and our review of the new M3 Max MacBook Pro 14 just confirms how great the laptops really are. The question is, which model is right for you?
Design

Read more
Everything you need to know about buying a power supply for your PC
Gigabyte Aorus P1200W power supply.

Picking out a good power supply is a lot more challenging than it might seem at a glance. While there are always plenty of reviews of some of the best processors and top graphics cards, Power supply units (PSUs) tend to be a little overlooked. Still, the power supply should never be an afterthought when you're building or buying a new PC.

There are a few important rules to follow when you're picking out your PSU, ranging from making sure it fits your build to ensuring that it can handle power spikes and future upgrades. Here's everything you need to know when shopping for a power supply.
The importance of the PSU

Read more
The best handheld gaming PCs you can buy
Steam Deck held between two hands.

Ever since Valve's Steam Deck showed up, there has been a revolution in the world of handheld gaming PCs. Seemingly every company is looking to jump in on portable, high-performance gaming, but only a select few devices are among the best handheld gaming PCs you can buy.

This is definitely an evolving field, with new companies announcing devices left and right. Even this year, we still have devices like the Lenovo Legion Go to look forward to. For now, though, here are the top handheld gaming systems we've tested.

Read more