GeekaPC 'Flux' Gaming PC
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The GeekaPC Flux is a stunning gaming PC that targets 1440p gaming and has strong legs at 4K too. All the parts are housed inside the Lian Li O11 Dynamic Mini V2, a compact dual-chamber case with pillar-less tempered glass and five pre-installed fans. Gamers can choose between the AMD Radeon RX 9070 XT, NVIDIA RTX 5070 Ti and RTX 5080 GPUs, all highly capable cards for buttery smooth gaming.

AMD's Ryzen 7 7800X3D is the brains of the Flux GeekaPC build. This eight-core chip remains one of the most sought-after gaming CPUs around thanks to AMD's 3D V-Cache technology, which stacks a huge 96MB of L3 cache onto the processor. That extra cache keeps game data closer to the cores, delivering frame rates that punch well above what the 5.0GHz boost clock would suggest, all while staying efficient at 120W.

The Corsair Nautilus 360 RS ARGB ensures the Ryzen 7 7800X3D remains cool. This 360mm liquid cooling unit is equipped with three Thermalright fans. Each fan lights up with vibrant RGB too.
Handling the platform side of things is the Gigabyte B850M Eagle WiFi6E, a firm favourite in our builds. The B850 chipset takes the 7800X3D in its stride and brings everything a capable gaming system needs without unnecessary cost overhead, including AMD EXPO memory profiles, on-board Wi-Fi 6E and Bluetooth 5.3.

The Lian Li O11 Dynamic Mini V2 houses all of the parts in this PC build. It's the compact sibling of the ever-popular O11 Dynamic and a firm favourite on the GeekaWhat YouTube channel due to its clean design, excellent build quality and pre-installed fans. Pillar-less tempered glass on the front and side panels gives an unhindered window into the build, while a 10-degree slanted bottom channels airflow directly over the graphics card. The I/O module can also be repositioned from the front to the top, so the case suits any desk setup.
For RAM, this build uses a reliable Corsair Vengeance DDR5 RGB kit running at 6000MHz CL36 - widely regarded as the sweet spot for the AM5 platform. The ten zones of RGB lighting across the two sticks look superb through the glass side panel.

Regarding storage, the Biwin Black Opal NV7400 has made a return. This is one of our favourite Gen4 NVMe M.2 SSDs, offering sequential read speeds of up to 7400 MB/s and writes up to 6500 MB/s.
Lastly, powering this build is the Corsair RM750e power supply. This is a 750W unit, and it features a fully modular cabling system and 80 Plus Gold efficiency, ensuring minimal power is lost as additional heat or noise.
This build has a dedicated video on the GeekaWhat YouTube channel where the host, James Cousins, details the entire step-by-step process. He covers each component's pros (and cons), along with a suite of gaming benchmarks at the end, providing an idea of how this system performs.
CPU (Processor): AMD Ryzen 7 7800X3D
A high-performance 8-core gaming CPU featuring AMD's 3D V-Cache technology with 96MB of L3 cache for exceptional gaming performance. Built on the Zen 4 architecture with a 4.2 GHz base clock and 5 GHz boost, it delivers impressive gaming frame rates with excellent power efficiency at just 120W TDP.
- Cores / Threads
8 Cores / 16 Threads
- Base / Boost Clock
4.2 / 5.0 GHz
- Socket
AM5
- Default TDP
120W
| CPU | AMD Ryzen 5 9600X | AMD Ryzen 7 9700X | AMD Ryzen 7 7800X3D In Build | AMD Ryzen 7 9800X3D |
|---|---|---|---|---|
| Architecture | Zen 5 | Zen 5 | Zen 4 | Zen 5 (3D V-Cache) |
| C/T | 6 / 12 | 8 / 16 | 8 / 16 | 8 / 16 |
| Base / Boost | 3.9 / 5.4 GHz | 3.8 / 5.5 GHz | 4.2 / 5.0 GHz | 4.7 / 5.2 GHz |
| L3 Cache | 32MB | 32MB | 96MB | 96MB |
| Socket | AM5 | AM5 | AM5 | AM5 |
| TDP | 65W | 65W | 120W | 120W |
CPU Cooler: Corsair Nautilus 360 RS ARGB
Corsair's Nautilus 360 RS ARGB delivers capable 360mm liquid cooling with three RS120 ARGB fans. Rated for 250W+ TDP and finished in all-black, it integrates well with iCUE for full lighting control.
- Type
360mm AIO
- Fan Setup
3 × 120mm RS120 ARGB
- TDP Rating
250W+
- Finish
All-Black
Motherboard: Gigabyte B850 Eagle WiFi6E
With strong connectivity, on-board Wi-Fi 6E, and AMD EXPO support, the B850 Eagle WiFi6E remains a firm favourite in our builds. The B850 chipset handles the Ryzen 5 7800X3D's TDP with ease, and provides everything needed for a capable gaming system without unnecessary cost overhead.
- Chipset
AMD B850
- CPU Socket
AM5
- Wireless
Wi-Fi 6E + Bluetooth 5.3
- Memory Profile
DDR5 with AMD EXPO support (up to 8200 MT/s)
Rear I/O Panel
RAM: Corsair Vengeance DDR5 RGB 32GB 6000MHz CL36
A popular DDR5 kit that hits the sweet spot for AMD Ryzen builds — 6000 MT/s is widely regarded as the ideal speed for the AM5 platform and the ten-zone RGB lighting looks great through any windowed case.
- Memory Type
DDR5
- Speed
6000 MT/s
- Latency
CL36
- Capacity Layout
32GB Kit (2 × 16GB)
SSD: Biwin Black Opal NV7400
The Biwin Black Opal NV7400 is an excellent addition to any system. With sequential read speeds up to 7400 MB/s and write speeds up to 6500 MB/s, it's fast, reliable, and resilient for high-framerate gaming.
- Form Factor
M.2 2280 NVMe SSD
- Interface
PCIe 4.0 x4
- Read Speed
Up to 7400 MB/s
- Capacity
1TB, 2TB, or 4TB
GPU (Graphics Card): Choose Your Option
The GeekaPC Flux is available with three GPU options to suit your budget and resolution targets. All of these GPUs perform expertly at 1440p making smooth gameplay a breeze as well as great performance at 4K too.
- Target Resolution
1440p / 4K
- API Support
DirectX 12 Ultimate, Vulkan
- Shader Processors
CUDA Cores (NVIDIA) / Stream Processors (AMD)
- PCIe Interface
PCIe 5.0 x16
GPU Options
Case: Lian Li O11 Dynamic Mini V2
The Lian Li O11 Dynamic Mini V2 is a compact dual-chamber ATX mid-tower that packs serious hardware support into a tight footprint. Pillar-less tempered glass on the front and side panels gives an unobstructed panoramic view of the build. A 10° slanted bottom channels airflow directly over the GPU, and the I/O module can be repositioned from the front to the top to suit any desk setup. Designed for clean, showcase-worthy white builds.
- Chassis Type
Compact ATX Mid-Tower
- Motherboard Support
ATX / Micro-ATX / Mini-ITX
- Included Fans
5 × 120mm
- Panel Design
Pillar-less tempered glass front & side
Lian Li O11D Mini V2 Case Overview
Front I/O
Exterior Dimensions
- Height (H)392 mm (15.43 in)
- Width (W)273 mm (10.75 in)
- Depth (D)424 mm (16.69 in)
PSU: Corsair RM750e
A well-rounded 750W unit with fully modular cables, 80+ Gold efficiency, and ATX 3.1 with PCIe 5.1 support — plenty of headroom for high-end builds running demanding GPUs.
- Wattage
750W
- Efficiency
80+ Gold
- Modular
Fully Modular
- Standard
ATX 3.1 / PCIe 5.1
Operating System: Windows 11
All of our systems come preinstalled with an activated copy of Windows 11 set to the 'Out of Box Experience'. This allows you to set the PC back up to your liking.
- Edition
Windows 11
- License
Preinstalled and Activated
- Setup State
Out of Box Experience
- Architecture
64-bit Operating System















