Chatreey AN3P (Ryzen 7 H255): The compact Mini PC for emulation and 1080p gaming with Radeon 780M

The Chatreey AN3P (R7 255 version) stands out from typical budget office computers by integrating Zen 4 architecture and the powerful Radeon 780M integrated GPU paired with 24 GB of LPDDR5 memory at 6400 MHz.

Its connectivity is outstanding thanks to the genuine USB 4.0 port and 2.5G network. The only significant drawback is its fully soldered RAM, but even so, given current DDR5 prices, it's not a major issue for this machine.

If you're looking for a tiny computer to play competitive 1080p games, emulate demanding consoles, or set up a fast workstation without paying the extra costs of traditional brands, this is a great buy.

• 🟢 Pros:

  • Integrated Radeon 780M graphics with excellent bandwidth thanks to LPDDR5 memory at 6400 MHz.

  • Front USB 4.0 40Gbps port compatible with monitors and ultra-fast storage.

  • Two M.2 NVMe PCIe 4.0 slots complete with dedicated metal heatsink.

  • 2.5 Gbps Ethernet network port and 6 USB Type-A ports in total.

• 🔴 Cons:

  • The 24GB of RAM are soldered in; they do not support physical expansion in the future.

  • The factory BIOS offers fairly conservative advanced tuning options.

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Unboxing and box contents

Upon opening the package, we found a sober and functional presentation, well protected with high-density foam to withstand international shipping:

• The Chatreey AN3P mini PC is properly sealed.

• 19V DC external power adapter with European plug.

• 1 meter HDMI 2.1 cable.

• VESA metal mounting plate with its set of screws to anchor the chassis behind a monitor or under the desk.

• User manual and quick start guide in multiple languages.

Key technical specifications

Design and construction quality

The Chatreey AN3P features a classic cube-shaped form factor that takes up less than a liter on a desk. The outer casing combines matte-finish reinforced ABS plastic on the sides with an internal metal structure for added rigidity.

The distinctive feature of this chassis is its slightly raised, transparent methacrylate top cover , secured by four decorative metal screws. This space creates an air intake chamber for the turbine-type top fan.

In hand, the unit feels dense and well-finished, with lower rubber feet that isolate well from mechanical vibrations when the fan speeds up.

Screen, multimedia and user experience

The device lacks built-in speakers, relying instead on the front 3.5mm analog jack or integrated digital audio via its HDMI, DP and USB-C outputs.

In terms of visuals, its triple controller allows you to connect three independent screens:

• The HDMI 2.1 port handles 4K resolutions at 120 Hz for televisions without breaking a sweat.

• The DisplayPort 2.0 output is ideal for desktop gaming monitors with high refresh rates.

• The front USB 4.0 port carries DisplayPort Alt Mode video signal, allowing portable monitors to be connected using a single cable.

For multimedia consumption, AMD's VCN 4.0 hardware video decoder plays 4K and 8K content in AV1, HEVC, and VP9 formats with virtually no CPU load (less than 3%).

Performance, software, and storage

It comes with a clean, activated installation of Windows 11 Pro , with no adware or unnecessary applications. All standard AMD and network drivers are updated seamlessly via Windows Update and AMD Adrenalin software.

The leap to the Zen 4 microarchitecture at 4 nanometers is immediately noticeable: the system responds instantly when opening dozens of heavy tabs in Chrome, working with kilometer-long spreadsheets, or compiling web projects.

In units configured with factory SSDs, sequential read and write speeds are around 3500 MB/s read and 3000 MB/s write , within the basic PCIe 4.0 standard.

Thanks to the motherboard's native PCIe 4.0 x4 support, you can install high-end drives like a Kingston KC3000 SSD or a Lexar NM790 from AliExpress and achieve transfer speeds close to 7000 MB/s.

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Energy consumption, temperature and noise

The efficiency tuning of the Ryzen 7 255 processor is one of its greatest strengths:

• Idle: Power consumption at the plug remains at a low 10W , making it an interesting candidate for home servers that are switched on continuously.

• Average workload (Office / Video): Ranges between 18 W and 25 W.

• Maximum load (Gaming / Stress test): The CPU stays at 45W of sustained TDP , with peaks for the entire system not exceeding 65W.

The thermal system uses a top fan that pushes air through a block with double copper heat pipes.

At idle and during browsing, the noise is virtually inaudible (around 28-30 dBA). When under heavy load in benchmarks or demanding games, the fan speed increases to about 42 dBA with a linear hum and no annoying high-pitched whistling.

Temperatures in continuous stress tests stabilize around 76°C - 81°C , well below the 95°C where thermal throttling would begin.

Connectivity and ports

The Chatreey AN3P's port selection far exceeds what is typical in this price range:

• Front: Two USB 3.2 ports for fast memory, audio jack and the star port: USB 4.0 Type-C at 40 Gbps , which supports maximum speed data transmission and video output.

• Rear: Four full USB 3.0 Type-A ports, 2.5 Gbps RJ-45 Ethernet network socket, HDMI 2.1 output and DisplayPort 2.0.

• Wireless: Wi-Fi 6 card that delivers stable wireless transfers along with Bluetooth 5.2 for controllers and peripherals.

It does not include extra security features such as a biometric fingerprint reader or water and dust resistance certification (IP rating), which is common in compact desktop computers.

Expansion and improvement options

In the area of ​​future updates, we find two sides to the coin:

1. RAM (No upgrade option):
   The 24 GB of LPDDR5 RAM is soldered directly to the motherboard. Therefore, there are no physical SO-DIMM slots, and you cannot upgrade the memory in the future. However, 24 GB is ample enough to allow you to allocate 4 or 8 GB of VRAM to the integrated graphics and retain 16-20 GB free for the system.

2. Storage (Excellent Expansion):
   It features two M.2 NVMe PCIe 4.0 slots (2280 size). You can replace the primary drive or simply add a second secondary drive of up to 4TB for gaming or backups without removing the first. Additionally, the bottom cover acts as a passive metal heatsink in direct contact with the drives.

3. 2.5-inch SATA bay: Does not include support for mechanical hard drives or classic 2.5" SATA SSDs, as the chassis prioritizes reduced thickness.

📦 Check out deals on NVMe PCIe 4.0 SSD drives on AliExpress to upgrade this system

Comparison with direct competitors

Opinions in the community and specialized pages

By monitoring user experiences on hardware forums like Reddit (r/MiniPCs) and technical communities, the consensus reflects very defined points:

• A pleasant surprise with the Radeon 780M: Buyers praise the performance in light 3D titles and emulators, noting that the 24GB of RAM at 6400MHz provides that extra smoothness not achieved in models with standard DDR5 memory at 4800MHz.

• Relief with physical connectivity: Compared to other Asian models that reduce ports to save costs, the presence of 6 USB Type-A ports and the 2.5G network port is one of the aspects most valued by users who set up small home servers.

• Criticism of the BIOS and the lack of memory expansion: The most questioned point in the community is the absence of options in the BIOS to manually unlock power profiles above 45W and the fact that it is not possible to increase the memory to 32 or 64 GB if heavier virtual machines are required in the future.

Technical tests and real benchmarks

The measurements from the Chatreey AN3P yield remarkable figures for such a compact format:

• CPU-Z Benchmark (v17.01.64):

  • Single Thread: 679.2 puntos. This represents a notable improvement over the 627.5 points of the Ryzen 7 7735HS generation and surpasses the average of other R7 H 255 models on the market (654 points).

  • Multi Thread: 7045.6 puntos. Marks an increase of more than 21% compared to the 7735HS (5817.5 points), offering a parallelization ratio of 10.37 with its 16 threads working in parallel.

• 3DMark Time Spy:

  • Overall score: 3.174 puntos.

  • Graphics Score: 2.834 puntos. Clearly surpasses the ~2,400 points of a traditional Radeon 680M graphics card.

  • CPU Score: 9.974 puntos. Demonstrates that the CPU does not create any bottleneck on the graphics section.

These tests demonstrate that the system performs reliably in processor-intensive tasks (light editing, development, or multitasking) and guarantee that the Radeon 780M makes the most of its 45W to run competitive games and emulators smoothly at 1080p , also confirming that the cooling prevents power loss due to heat.

Gaming and emulation performance

Thanks to the Radeon 780M 's 12 RDNA 3 Compute Units combined with the 6400 MHz memory, gaming performance is very satisfactory:

PC Games (Native 1080p)

• Counter-Strike 2 / Valorant: 90 - 120 stable FPS on low/medium competitive quality.

• GTA V: 65 - 75 FPS at very high quality at 1080p.

• Cyberpunk 2077: 40 - 48 FPS at 1080p low, using AMD FSR in Quality or Balanced mode.

• Forza Horizon 5: 55 - 60 FPS on medium settings at native 1080p.

Emulation

• PS2, GameCube, Wii U and PSP: Perfect emulation at internal resolution upscaled to 1440p or 4K at constant 60 FPS.

• Nintendo Switch (Ryujinx / Yuzu): Most popular titles run at a locked 30 or 60 FPS.

• PlayStation 3 (RPCS3): Thanks to the 8 high-frequency Zen 4 cores, demanding games like Gran Turismo 5 or God of War Collection remain smooth without significant frame rate drops.

Final conclusion and alternatives

The Chatreey AN3P R7 255 stands out as an exceptionally well-balanced mini PC for those seeking maximum integrated graphics performance without spending the money of high-end models like the Minisforum or Beelink, which cost over €500. The inclusion of the Radeon 780M, along with 24 GB of fast 6400 MHz memory, a front USB 4.0 port, and two PCIe 4.0 slots, makes it a versatile machine for both work and gaming, including 1080p emulation.

Who is it ideal for?

• Users who want a compact PC for competitive gaming (CS2, LoL, Fortnite, Rocket League) and emulators without buying a large tower.

• Workstations that require connecting two or three high-resolution screens at the same time.

• Enthusiasts looking for a low-power device (10W standby) with 2.5G network for server or home media center tasks.

Where to buy it at the best price

Our purchase recommendation is to choose the H255 24G NO Storage configuration on AliExpress if you already have a fast SSD at home, avoiding paying a premium for generic storage drives:

👉 Buy Chatreey AN3P R7 H255 at the best price on AliExpress

👉 Search for similar mini PCs on Amazon