Best Small Form Factor Gaming PCs: Which One to Buy

The best small form factor gaming PC depends on how much graphics power you need: the Minisforum AtomMan G1 Pro and Asus ROG NUC (2025) pack discrete RTX graphics into a few liters for 1080p to 1440p play, the Geekom AX8 Pro suits lighter gaming on integrated Radeon graphics, and a Mini-ITX build in a case such as the Cooler Master NR2 Pro suits buyers who want upgradeable desktop parts. Reviews from PC Gamer, PCGamesN and others disagree on one winner, so this guide sorts picks by use.

Mini PC, small PC or Mini-ITX build?

“Small form factor” covers three different product types, and the trade-offs differ.

• Mini PC with integrated graphics: the smallest and quietest, with limited gaming power. The CPU and graphics are fixed.
• Mini PC with discrete graphics: a compact box with a laptop-class or low-profile GPU. Fast for its size, with limited upgrades.
• Mini-ITX or small-case desktop: standard parts, a full-size GPU in some cases and real upgrade paths, but a bigger footprint.

As one roundup notes, mini PCs are much less upgradeable than small form factor desktops: you generally cannot swap the processor, and any discrete GPU may be a laptop-class chip. Several of the roundups reviewed for this article are affiliate-style sites, so the maker specs below carry more weight than their rankings.

At a glance

Minisforum AtomMan G1 Pro: best discrete-GPU mini PC

PC Gamer names the AtomMan G1 Pro its best mini PC for gaming, and BeatCopGame ranks it first for most gamers. Minisforum pairs a 16-core, 32-thread Ryzen 9 8945HX with a low-profile desktop-class GeForce RTX 5060 in a 3.8-liter chassis. It has dual M.2 PCIe 4.0 slots, supports up to 96GB of DDR5, adds Wi-Fi 7, Bluetooth 5.4 and 5G LAN, and ships with a 350W power adapter. An AMD Radeon RX 9060 XT 16GB variant also exists.

Listings disagree on RAM speed: Micro Center shows DDR5-5200 with 32GB and a 1TB SSD, while Guru3D reports DDR5-5600. Read the exact configuration before ordering. The console-style shape suits a living-room TV or a compact desk, and Tom’s Guide describes it as working well in both places.

Trade-offs

The CPU is fixed, and the compact cooler limits the GPU to the low-profile part Minisforum chose. It will handle 1080p and many 1440p titles, but it is not a replacement for a full-size RTX 5070-class desktop.

Asus ROG NUC (2025): best raw performance in the category

PC Gamer calls the ROG NUC the best mini PC for pure gaming performance. Asus lists the Core Ultra 9 275HX or Core Ultra 7 255HX with RTX 5080, 5070 Ti, 5070 or 5060 graphics, where the RTX 5060 pairs only with the Ultra 7. The RTX 5070 is a 100+15W part with 8GB of GDDR7. Memory is two DDR5-6400 SO-DIMM slots up to 96GB, storage is one PCIe 5.0 and one PCIe 4.0 M.2 slot, and connectivity includes Wi-Fi 7, Bluetooth 5.4, 2.5G LAN, Thunderbolt 4, two HDMI 2.1 and two DisplayPort 2.1 ports. The chassis measures 282 x 187.7 x 56.5 mm, just under 3 liters, with triple-fan, dual-vapor-chamber cooling and a 330W adapter.

It costs more than most rivals, so it suits buyers who want near-laptop-flagship performance in the smallest chassis. As with other mini PCs, the GPU is not upgradeable.

Geekom AX8 Pro: best for light gaming and daily use

PCGamesN names the AX8 Pro its top mini PC overall for its small size, decent gaming power and fair price. Geekom lists a Ryzen 7 8845HS or Ryzen 9 8945HS with Radeon 780M integrated graphics, up to 64GB of dual-channel DDR5-5600, a PCIe Gen4 x4 SSD up to 2TB, 2.5G Ethernet, Wi-Fi 6E and Bluetooth 5.2. Ports include two HDMI 2.0, USB4 and USB 3.2 Type-A and Type-C, and it measures roughly 4.6 x 4.37 x 1.51 inches and weighs about 1.21 lbs.

Integrated graphics suit esports titles and older games at modest settings, not modern AAA at high settings. The two HDMI 2.0 ports cap high-refresh 4K output, which is worth noting for TV gaming. Other budget picks named by reviewers include the Minisforum UM773 Lite, Blackview MP200 and Venus UM790 Pro, though details differ by listing.

Mini-ITX and small-case builds

PCTechKits names the Cooler Master NR2 Pro for 1440p high-FPS gaming and the Thermaltake Traveler 7870 Mini-ITX for compact high-end gaming, and lists the ROG GR70 with an RTX 5070. PCGamesN names the Origin PC Chronos V3 as the most upgradeable prebuilt in its roundup. These designs keep standard motherboards, memory and power supplies, which gives you a real upgrade path that mini PCs lack.

• Check GPU length and thickness against the case’s stated maximum.
• Check CPU cooler height; SFF cases often limit it.
• Use an SFX or SFX-L power supply if the case requires it.
• Plan airflow, because compact cases can run warmer under load.

Fit, noise and connectivity notes

• Desk fit: mini PCs can mount behind a monitor using a VESA bracket where the maker offers one.
• Noise: small chassis with high-wattage parts rely on fast fans, so quieter performance usually means a lower-power configuration.
• Power adapters: the 350W and 330W external adapters are bulky, so allow space for them.
• Displays: check HDMI and DisplayPort versions if you plan high-refresh gaming.

Pick X if …

Cooling and power in a tiny case

Small cases concentrate heat, so the cooling design is as important as the parts list. The ROG NUC lists triple-fan, dual-vapor-chamber cooling, while the G1 Pro uses a compact design around its low-profile RTX 5060. Both rely on external adapters (330W and 350W) because there is no room for an internal supply. Leave open space around the vents, avoid enclosed shelves, and keep the unit off soft surfaces.

For Mini-ITX builds, airflow depends on case layout. Mesh panels help, but tall coolers can be blocked by side panels, and long GPUs can crowd the front intake. Choose a CPU cooler within the case’s listed height, and consider lower-wattage CPU and GPU tiers if the case is tight. Where a maker publishes thermal or noise limits, follow them rather than assuming a larger chassis behavior.

Storage, memory and ports to plan for

Because upgrades are limited, decide on memory and storage up front. The G1 Pro supports up to 96GB of DDR5 and two M.2 PCIe 4.0 slots, the ROG NUC lists up to 96GB across two SO-DIMM slots with one PCIe 5.0 and one PCIe 4.0 M.2 slot, and the AX8 Pro lists up to 64GB and a single Gen4 SSD up to 2TB. Count the peripherals you use daily, including headset, controller dongle and capture card, and compare them with each model’s USB and display ports before ordering.

Alternatives

BOSGAME P3 Pro, GMKtec M7 Ultra and KAMRUI E3B appear in affiliate-style roundups as lower-tier options, but their claims come from reviewers rather than makers, so treat them with more caution. A gaming laptop with a docking setup is another route if you also need portability.

Frequently Asked Questions

Can a mini PC really play modern games?

Yes, with a discrete GPU such as the RTX 5060 in the AtomMan G1 Pro, 1080p and many 1440p titles are realistic. Integrated graphics like the Radeon 780M are better for esports and older games.

Can I upgrade the GPU in a mini PC?

Usually not. Memory and storage are often replaceable, but the CPU and GPU are fixed, so choose the tier you need at purchase.

Are small gaming PCs loud?

They can be under load, because compact cooling relies on fast fans. Reviewers describe varying noise levels by model, so read reviews for the specific system.

What is the difference between SFF and a mini PC?

A mini PC is a sealed system with fixed parts, while an SFF desktop uses a small case with standard parts, usually Mini-ITX, which you can upgrade.

Do these systems support high-refresh 4K?

It depends on the ports. The ROG NUC lists HDMI 2.1 and DisplayPort 2.1, while the Geekom AX8 Pro lists HDMI 2.0, which limits high refresh at 4K.

How much RAM do I need?

16GB is workable for many games, and 32GB gives more headroom. The G1 Pro and ROG NUC support up to 96GB, and the AX8 Pro up to 64GB.