The Best $700-$1000 Ultra-Compact NUC PC Builds – September 2021

By Ari Altman | Published August 27, 2021 | Updated August 27, 2021

Asrock 4x4The Ultra-Compact PC, Defined

Need a powerful PC for work-for-home or small business use, but can’t stand the thought of a big, bulky desktop tower on your desk? Then go for an ultra-compact PC, which we define as using a 10cm x 10cm motherboard. In case that doesn’t translate for you immediately, it’s really small!

Today, the most powerful palm-sized PCs on the market leverage AMD Ryzen CPUs. While Intel defined the ultra-compact PC category with its trend-setting Next Unit of Computing (NUC, pronounced “nuck”), Intel has fallen seriously behind with its 11th-Gen NUC kits. They were due in March 2021, and while its dual-core models were finally listed in July and quad-core models in August, they are almost always out of stock. And frankly, they pale in comparison to the six- and eight-core AMD-powered systems that have been on the market much longer.

This Month’s “Intel NUC” Build, Featuring AMD Again!

For September 2021, we recommend the ASRock 4×4 barebones kit, which features the AMD Ryzen 5 4500U six-core processor. It also has the excellent AMD Radeon Vega graphics solution on board. Because this is “barebones” kit, you need to add your own RAM, solid-state drive, and operating system. We suggest 16GB of DDR4-3200 RAM, plus a fast 500GB PCIe solid-state drive, although you can certainly go with higher-capacity components if you’d like. To complete your PC Build, we recommend you pick up a copy of Windows 10 Home on USB. By the way, this system also has WiFi 6, Bluetooth 5, and both front- and rear-mounted USB Type-C ports.

Need even more power? Well, we list an incredible upgraded kit later in this guide, which features the top-of-the-line AMD Ryzen 7 4800U, an eight-core, 16-thread CPU. It brings the total cost of this PC up from $700 to around $850, and if you’d like to really max it out, we suggest 32GB of RAM and a 1TB SSD too, bringing the price to around $1000. With all that said, if you decide you want extreme power but don’t need something quite this small, check out the other options in our Small Form Factor Build Guides, which leverage the power of midrange and high-end desktop-class processors.

Final Thoughts

Note that we provide links to Amazon, Newegg, or B&H for US readers, and our Amazon links will auto-convert for our readers in Canada, the UK, and parts of the EU, with regional substitutions made where necessary. If you decide to purchase any of the products we list, please use the links provided, which helps support continued development of these guides.

Required Components

  • Barebones Mini PC

    ASRock 4X4 BOX-4500U @Newegg

    $400

    While the NUC class of PCs has primarily been defined by actual Intel-branded NUCs, AMD-based systems have seen explosive growth over the past few years, and we believe it’s time to move on from Intel as it struggles to release its long-delayed next-gen NUC, announced in February but not shipping in quantity until June. Instead, we suggest this amazing little machine from ASRock, sporting an AMD Ryzen 5 4550U six-core processor. It brings with it a host of advantages, including high-end performance (equaling Intel’s 10th-Gen Core i7 that costs far more), much better graphics performance thanks to the built-in Vega GPU, along with dual USB Type-C ports, three USB Type-A ports, HDMI 2.0 plus DisplayPort. It also has built-in WiFi 6 and Bluetooth 5.0. This tiny system is designed for use with a single M.2 solid-state drive, and also has space for a single 2.5″ drive, making it very versatile.

    The Guru’s Tip

    Another advantage of the AMD platform is support for much faster RAM than what Intel allows, so we recommend that below.

  • Memory

    Crucial 2x8GB Ballistix DDR4-3200 C16 SODIMM

    $85
    The ultra-compact PC format has always required the use of laptop-style memory modules, and the latest systems support memory with speeds up to 3200MHz (well above the more typical 2133 and 2666 speeds). That’s what we recommend here, in a 2x8GB configuration.
    The Guru’s Tip

    Any system you intend to keep for the long-haul should have 16GB of RAM, especially systems like this one with just two RAM slots (which limits upgrades). You might even consider picking up the Crucial 2x16GB kit!

  • Solid-State Drive

    Samsung 980 500GB

    $60

    There’s lots of competition in the SSD market, but SSD pioneer Samsung has put all the other mid-priced offerings to shame with its 980 500GB, launched in early 2021. You simply can’t do better than this awesome SSD, which uses the speedy PCIe 3.0 interface and Samsung’s superior TLC NAND to vastly outperform every other PCIe 3.0 drive! Note that to install this drive, you’ll affix it in an M.2 slot on your motherboard using a jeweler’s-type screwdriver.

    The Guru’s Tip

    Need more capacity? Then jump up to the 1TB version of this drive, listed on the same product page.

  • Operating System

    Windows 10 Home USB Flash Drive

    $130
    Windows 10 was a big step up from Windows 8.1, and Microsoft continues to support Windows 10 users not only with regular security updates, but with major content releases every six months. And the USB version installs in under 5 minutes, meaning you can get right into using your system!
    The Guru’s Tip

    Microsoft is phasing out the USB version of Windows. We like it because it's so easy to use, but if it's out of stock, you can go for the downloadable version from the same product page.

Optional Products

  • Barebones Mini PC

    Gigabyte BRIX 4800U Ultra-Compact PC Kit

    $555

    Want an insane amount of power? Then go for this Brix model from Gigabyte, which uses a similar form factor as the model listed earlier in this guide, but features the AMD Ryzen 7 4800U, an 8-core, 16-thread processor that simply dominates anything Intel has ever released in this product segment!

    The Guru’s Tip

    This model has multiple display connectors, including mini-DisplayPort, DisplayPort over USB Type-C, plus a full-sized HDMI 2.0 port.

  • Memory

    Crucial 2x16GB Ballistix DDR4-3200 C16 SODIMM

    $153

    The ultra-compact PC format has always required the use of laptop-style memory modules. The latest systems support memory with speeds up to 3200MHz, which is what this kit offers. It’s well above more typical 2133 and 2666 speeds. And this 32GB kit provides a whole lot of capacity too!

    The Guru’s Tip

    While this is already a huge amount of capacity for a small system, believe it or not Crucial also offers a 2x32GB kit, listed on the same product page!

  • Solid-State Drive

    Samsung 980 1TB

    $130

    There’s lots of competition in the SSD market, but SSD pioneer Samsung has put all the other mid-priced offerings to shame with its 980 1TB. It uses the speedy PCIe 3.0 interface and Samsung’s superior TLC NAND to vastly outperform every other PCIe 3.0 drive! To achieve performance any faster, you’d have to spend at least 50% more!

    The Guru’s Tip

    We think 1TB is plenty for just about any user of a compact PC, but if you need more capacity, you'll need to go with one of Samsung's competitors, as the 980 maxes out at this size.

  • The Basic Wireless Keyboard/Mouse Combo

    Logitech MK270 Wireless Keyboard and Mouse Combo

    $25
    While you may have an old keyboard and mouse sitting in your desk, treat yourself to a new wireless setup from Logitech, the MK270!
    The Guru’s Tip

    A critical benefit of this duo is the single USB adapter it uses, which is great for a PC with limited USB ports!

  • The Deluxe PC Headset

    Corsair HS70 BT

    $100
    Great sound, a great look, and wireless freedom. That’s what the HS70 from Corsair gives you, along with a great price!
    The Guru’s Tip

    This headset will also work with your smartphone, thanks to its Bluetooth capability.

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