Metallique Three | RTX 5090 + Ryzen 7 9800X3D + ITX Case | Ready-to-Go Gaming PC | PC36

🩵 Metallique Three

Flagship power, minimal footprint

Metallique Three represents the pinnacle of compact performance. Housing a Ryzen 7 9800X3D and RTX 5090 32GB in the ultra-dense Antec Performance 1M ITX chassis, it redefines what’s possible in small-form-factor computing. Every millimetre of space is tuned for airflow, power delivery and thermal balance - a workstation-grade system that fits almost anywhere, with performance that comfortably holds its own against much larger builds.

We spend hours perfectly tuning this system to make such high end computing possible in a tiny footprint. We chose the Antec Performance 1M case due to its effective handling of large graphics cards, and very robust build quality that will never tire. 

🧬 Built to last, designed to evolve

This system is built on AMD's modern AM5 platform, which offers one of the best CPU upgrade paths available today. That means you can start with a great processor now and still have room to move up the stack later, while keeping the same motherboard, case, power supply and most of your core components. GPU, storage and cooling are all easily upgradable so the system can grow with your needs over time. In this ITX layout, Metallique Three is carefully tuned for long-term stability and sensible noise levels rather than unchecked power draw — a compact flagship that remains usable and reliable in real-world conditions.

📃 Specifications

• 🧠 CPU: AMD Ryzen 7 9800X3D
  Click or tap for deeper spec info

  • 8 cores, 16 threads – exceptional for modern gaming and mixed workloads
  • High 3D V-Cache capacity for class-leading FPS, especially at 1440p and 4K
  • Optimised with ITX-focused tuning (TJmax and curve optimiser) to balance performance, noise and thermals
• ❄️ CPU cooler: Thermalright AXP90-X53 full copper low-profile cooler with Noctua NF-A9x14 fan and Noctua NT-H2 thermal paste
  Click or tap for deeper spec info

  • 53 mm total height – the best-in-class low-profile cooler available for this clearance
  • Top-down design
  • Chosen specifically because larger coolers are not physically supported with an RTX 5090 installed
  • Full copper surface for maximal heat throughput
  • Upgraded Noctua fan
• 🔲 Motherboard: B850 ITX motherboard; MSI MPG B850I EDGE TI
  Click or tap for deeper spec info

  • 8-phase VRM for stable long-term performance. Because we will be thermally manging the 9800X3D CPU, an extensive VRM is not required, although the 8 phases on this board feature 90amp power stages which are far superior to the usual 60amps on most other boards. This board offers excellent stability.
  • AM5 chipset with robust power delivery and modern connectivity in an ITX form factor
  • Designed to handle high-end CPUs and GPUs in an ultra-compact layout
• 📏 Memory / RAM: 48GB (2×24GB) DDR5-6000 CL36 or better
  Click or tap for deeper spec info

  • Dual channel DDR5 for optimal performance on AM5
  • 48GB capacity is ideal for heavy multitasking, content creation and demanding modern titles
  • Low latency CL36 kit chosen to balance raw bandwidth with responsiveness
  • We may use a higher frequency kit e.g. 7600MHz CL38 and tweak it to achieve 6000MHz CL36 or better depending on stock. Typically we can achieve 6000MHz CL30 with ease
• 💾 Storage: 1TB PCIe 4.0 NVMe M.2 SSD as standard
  Click or tap for deeper spec info

  • Premium NVMe drive with DRAM buffering for excellent sustained performance
  • Perfect for fast OS boot, application launches and large game libraries
  • PC36 only uses reputable SSD brands — see our Trusted brands page
  • Support can confirm the exact SSD model installed at the time of purchase. Typically WD SN850X or Samsung 990 Pro
• 🎮 Graphics card: NVIDIA RTX 5090 32GB
  Click or tap for deeper spec info

  • Top-tier 4K and ultrawide performance with ray tracing and AI upscaling
  • 32GB VRAM for complex scenes, high-res texture packs and creative workloads
  • Carefully selected card and orientation to fit and breathe within the Antec Performance 1M ITX chassis
  • Exact model can be confirmed via live chat if you’d like to know more, however options are limited in this form factor. Typically Gigabyte Windforce or Zotac Solid
• 🧰 Case: Antec Performance 1M ITX – Black
  Click or tap for deeper spec info

  • Compact ITX chassis with a focus on airflow and component density
  • Designed to house high-end GPUs like the RTX 5090 in a minimal footprint
  • Ideal for premium, minimalist setups where desk space is at a premium
• 🌬️ Case cooling: 2 x 140mm bottom intake fans
  Click or tap for deeper spec info

  • Two 140mm intake fans supply a strong column of fresh air into the chassis
  • Two additional bottom intake fans help feed the GPU and improve overall airflow in the dense ITX space
  • Airflow is tuned around the constraints of the low-profile CPU cooler and large GPU
• ⚡ Power supply: 1000W 80+ Gold ATX 3.1 SFX size — trusted brand
  Click or tap for deeper spec info

  • High-capacity 1000W unit chosen specifically for RTX 5090 class power draw
  • 80+ Gold efficiency with modern protections and long warranty support
  • All 750W and above PSUs used by PC36 are ATX 3.1 certified
  • Exact PSU model can be confirmed on request; see our Trusted brands page for typical examples. Typically Corsair SF1000
• 🔌 Cabling: Stock cabling, ITX-optimised
  Click or tap for deeper spec info

  • Cables are routed specifically for the tight ITX environment to maintain airflow
  • Shorter cable runs reduce clutter in the Performance 1M’s compact interior
• 📶 WiFi / Bluetooth / Ethernet: Included FREE
  Click or tap for deeper spec info

  • High-quality onboard WiFi and Bluetooth via the premium ITX motherboard
  • Gigabit (or better) Ethernet for low-latency wired connections
  • Support can confirm exact wireless and wired standards if needed
• 🪟 Operating system: Windows 11 Pro is included in the price so please choose "No OS" from the dropdowns and we will include Windows 11 Pro for you post-checkout
• 🧹 Setup and optimisation: Price includes Premier optimisation so there is no need to add it from the dropdown menus
  Click or tap for deeper spec info

  • Optimised for managing thermals in an ITX chassis
  • Read Transparency notes for full detail
• 🛡️ Warranty: 3 years parts & labour (return to base)
  Click or tap for deeper spec info

  • Standard 3-year coverage included
  • Optional extended warranty may be available via dropdown options

👁️ Transparency notes

• We sometimes use generic component names or give a performance guarantee rather than specifying an exact brand. This is due to varying availability from our suppliers. Ask our support team any day you are ready to purchase and we will confirm your exact parts 😊
• Product images are representative photos of a similar spec in the same style – your PC will look similar but not identical. Our support team can help clarify anything you're unsure of.
• This build will be expertly tuned to ensure reliable operation without overheating. If you do not mind having a slightly larger build, speak to us about a micro ATX setup with superior cooling options
• Images show a cable tie restraint - this is deliberate and permanent - enormous graphics cards like the RTX 5090 will often sway at the right side - the cable tie prevents this forward sway for safety
• Metallique Three is a maxed out build packed into a tiny chassis. There are compromises due to this. Around a 1-4% performance loss vs a regular tower is expected. However we apply expert tweaks to achieve the best possible setup:  
  • The spec ensures the best possible cooling in this frame
  • CPU will be tweaked to use less power making it easier to cool and perform well (adjustment of PPT/thermal limit/curve optimiser)
  • Graphics card will be undervolted to reduce the thermal load in the system
  • These tweaks are built into the BIOS and MSI Afterburner application - removing or changing these may undo our tweaks so we recommend you do not modify these without guidance of an expert

🛠️ Popular upgrade options

• Please contact us for custom requirements – this configuration is already close to the limit of what’s physically and thermally achievable in this size. Ryzen 9 CPUs are possible but will suffer a larger performance penalty compared to Ryzen 7.
• If you would prefer a slightly larger case (but still overall small), please contact us for an alternative chassis (e.g. Lian Li A3)
• We do not recommend adding more RAM to this system unless required for your specific workload - it will seldom be useful and is harder to stabilise at faster speeds

🎯 What is this PC best for?

• 4K and ultrawide gaming at very high settings
• High-refresh 1440p competitive gaming
• Creative workloads, 3D rendering, simulation and streaming
• High-class minimalist setups where desk space is at a premium
• Users who understand and accept the trade-offs of flagship ITX performance

📊 Performance estimates (1440p)

These figures are based on 1440p resolution. FPS may be higher at lower resolutions or lower at higher resolutions. Performance is indicative, and will vary with game updates, maps, settings and background applications. Where relevant, they also reflect the sensible ITX thermal tuning described above.

Fortnite – 1440p Competitive Settings (click or tap to expand)

Estimated average FPS: 450–500 FPS
Tested natively (no upscaling or frame generation).

Cyberpunk 2077 – 1440p Ray Tracing Medium (click or tap to expand)

Estimated average FPS: ~185 FPS
Upscaling set to Auto (DLSS / FSR / XeSS depending on GPU).

Battlefield 6 – 1440p High Settings (click or tap to expand)

Estimated average FPS: ~200 FPS
Tested natively (no upscaling or frame generation).

DaVinci Resolve – PugetBench Standard (click or tap to expand)

Estimated score: 13,000

💬 Need help?

Not sure if this ITX flagship is the right fit for you? Ping us on live chat and we’ll help you compare Metallique Three with our larger cases, explain the trade-offs clearly, and guide you to the perfect spec for your space and workloads.