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Minisforum Neptune HX99G Mini Gaming PC

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Incl. Tax: £859.99
Excl. Tax: £716.66

Performance thats hard to beat at this size! With dual storage design you can have up to 4TB of storage in a system that fits in the palm of your hand! Run up to 4 displays and with the option to run an external graphics card with the Thunderbolt 4 port.

  • Dimensions: 7cm (W) x 20cm (D) x 20cm (H)
  • Windows 11 / Windows 10 / Ubuntu LTS
  • Run up to 4x 4K Displays (Dual HDMI – Dual USB C)
  • AMD Ryzen 9 6900HX @ 4.9GHz TDP: 45W
  • Up to 64GB DDR5
  • AMD Radeon™ RX 6600M(GDDR6 8GB)
  • Quad monitor output; 4K@60Hz
  • WiFi 6 & Bluetooth5.2, USB4 Type-C
  • 2.5GB LAN
  • Excellent thermal performance, superior cooling.
  • Up to 64GB of DDR4 RAM
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Product details


High-performance Gaming Mini PC with AMD Discrete Graphics

Neptune Series HX99G is powered by AMD Ryzen™ 9 6900HX and AMD Radeon™ RX 6600M, specially designed for gamers, creators, and mini PC enthusiasts. It handles resource-hungry games and applications easily with a top-tier AMD CPU and a competitive AMD discrete graphics card. Get ready for ultimate computing performance and an immersive gaming experience.

What can I expect from my new PC?

Performance guaranteed, each of our systems are tested with our “recommended specifications” across a range of performance metrics.

Our testing below has been conducted on a system configured with  a 2TB S70 Blade SSD – 16GB 4800MHz DDR5 RAM

*Actual performance may vary depending on the chosen components.

Gaming Performance

In our standardised testing – each game will be run at the maximum possible settings (unless noted otherwise) with DLSS set to Quality in each game that will allow for it, with the latest generation of Nvidia graphics cards, DLSS allows you to boost frame rates using NVIDIA RTX Tensor Cores – Make the most of your new gaming PC!


1440p: 92fps DLSS Performance

1080p: 95fps DLSS Performance


1440p: 92fps

1080p: 121fps


1440p: 136fps Ultra Nightmare Settings

1080p: 183fps Ultra Nightmare Settings


1440p: 127fps

1080p: 148fps


1440p: 63fps

1080p: 87fps


1440p: 58fps Med Settings

1080p: 68fps High Settings


1440p: 90fps High Settings

1080p: 101fps Very High Settings

System Performance


Idle - CPU: 34 GPU: 39

Gaming Load - CPU: 74 GPU: 68

Power Consumption

Idle: 21W

Gaming Load: 186W


Timespy: 8,416

Firestrike: 21,123


Score: 13,902


Score: 9,885

CPU Mark: 27,393

Memory Mark: 2,941

2d Mark: 872

Disk Mark: 51,854

3D Mark: 14,425



Read: 7,145 / Write: 6,771

Top-tier Superfast AMD Ryzen™ 9 Processor

The AMD Ryzen™ 9 6900HX is packed with 8 cores / 16 threads, 3.3 GHz to 4.9 GHz frequency, and noteworthy features like DDR5 memory, and PCIe 4.0 SSD. With this CPU, HX99G allows you to work, entertain, and play games like never before.

· 3DMARK CPU Score: 7017

· 3DMARK Fire Strike Score: 21123

· 3DMARK Time Spy Score: 8416

· CINEBENCH R23 Score: 13328/1615 (Multi Core/Single Core)

AMD Discrete Graphics

The AMD Radeon™ RX 6600M is a mobile graphics card based on the RDNA 2 architecture manufactured in the modern 7nm process. It features 1,792 cores and 8 GB of fast GDDR6 graphics memory. Take your gaming to the next level and get ultra-fast response times thanks to the AMD Radeon™ Anti-Lag and AMD Radeon™ Boost.

Whopping Dual 8K@60Hz Display

Two USB4 Type-C ports on HX99G allow users to set up two monitors simultaneously with a maximum resolution of 8K@60Hz. HX99G is also equipped with 2 HDMI ports. These four ports can support a maximum of four 4k@60Hz independent displays. HX99G can deliver the best-in-class visual experience with true-to-life clarity and glorious details.

① HDMI (4K@60Hz) ×2             ② USB4 (8K@60Hz) ×2

Carbon-Fiber Chassis

The diagonal corners and the base of the case are covered in carbon-fiber armor, in which the armor consists of 70% carbon fiber material and 30% resin. Carbon-fiber composites are used in the case’s grille and side corners to improve strength and thermal conductivity. Such an optimized design also keeps the case smooth and classy with its excellent abrasion and corrosion resistance. You can place the HX99G vertically by using the included base to save space and improve heat dissipation.

Efficient Heat Dissipation

HX99G equiped with 7 heat pipes ( 3 for CPU and 4 for GPU), liquid metal for both CPU and GPU, and dual fan inside for heat dissipation. It can run at low noise even under a full load.


It is easy to upgrade the SO-DIMM memory and the M.2 PCIe SSD thanks to HX99G’s design. HX99G embraces advanced hardware, including DDR5-4800MHz memory and PCIe 4.0 SSD (16 GT/s, double the bandwidth of PCIe 3.0). You can upgrade the setup and push HX99G to a whole new level of performance.


The HX99G delivers a fast and reliable wireless connection via Wi-Fi 6 and Bluetooth 5.2. It has four USB 3.2 Type-A ports, one USB 3.2 Type-C port, and two USB4 Type-C ports for fast data transfer. It also features an RJ45 2.5 Gigabit Ethernet port, a headphone jack, and a microphone jack.


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