KAMRUI AM21 Mini PC Review: Big Power in a Small Footprint

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The mini PC market has exploded in recent years, but few models manage to balance raw performance, modern connectivity, and compact design as well as the KAMRUI AM21. Powered by AMD’s latest Ryzen 7 8745HS processor and Radeon 780M graphics, this tiny desktop punches far above its weight, making it a compelling option for gamers, creators, and productivity-focused users alike.

At the core of the AM21 is the Ryzen 7 8745HS, an 8‑core, 16‑thread chip built on AMD’s Zen 4 architecture. With a base clock of 3.8GHz and boost speeds up to 4.9GHz, it delivers the kind of responsiveness you’d expect from a full-size tower. KAMRUI highlights performance gains of up to 18% over Intel’s Core Ultra 7 155H and more than 20% over previous-generation Ryzen mobile chips. In everyday use, that translates to fast application launches, smooth multitasking, and enough headroom for demanding workloads like video editing or running multiple virtual machines.

Graphics performance is where the AM21 truly surprises. The Radeon 780M, built on AMD’s RDNA 3 architecture, is one of the strongest integrated GPUs available today. It handles 1080p gaming far better than typical iGPUs, outperforming Intel’s Iris Xe and approaching the performance of older dedicated GPUs like the GTX 1650. For casual gaming, emulation, and creative applications, the 780M delivers smooth, reliable results. Support for AV1 decoding and 8K output also makes it a strong choice for media consumption and multi-display setups.

Memory and storage are equally impressive. The AM21 ships with 32GB of DDR5 5600MHz RAM in dual-channel configuration, with support for expansion up to 96GB. Storage comes in the form of a fast 1TB PCIe 4.0 NVMe SSD, and users can add a second M.2 2280 NVMe drive for up to 4TB total capacity. While SATA drives aren’t supported, the dual NVMe slots offer more than enough flexibility for most users.

Connectivity is another standout feature. The AM21 includes dual Gigabit Ethernet ports, ideal for advanced networking setups, home labs, or dedicated server tasks. Wireless connectivity is handled by Wi-Fi 6 and Bluetooth 5.2, ensuring stable performance for streaming, gaming, and peripheral pairing. The port selection is modern and generous, highlighted by a USB4 port supporting 40Gbps transfers, 8K video output, and 100W power delivery. Dual HDMI 2.1 ports, USB‑C, USB 3.2, USB 2.0, and a 3.5mm audio jack round out a versatile and well-balanced I/O layout.

KAMRUI also includes 24/7 technical support, which adds peace of mind for buyers who want reliable assistance.

Overall, the KAMRUI AM21 delivers exceptional value for users who want desktop-class performance in a compact form factor. Whether you’re building a home office setup, a living room media center, or a portable workstation, this mini PC offers the power, flexibility, and connectivity to handle it all with ease.

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