Rune Three | RTX 5080 + Ryzen 7 7800X3D | Ready-to-Go Gaming PC | PC36

🐺 Rune Three

Peak Power in a Compact Frame

Rune Three is built for users who want the highest level of performance inside one of the smallest premium enclosures available. By pairing the exceptional Ryzen 7 7800X3D with the NVIDIA RTX 5080 16GB, this system delivers cutting-edge gaming power while maintaining the minimalist, refined look of the Fractal Terra ITX chassis.

The Terra’s compact layout demands careful component selection and expert tuning. Rune Three is configured with exactly that in mind — maximising thermal performance, acoustics, and stability within an ultra-small footprint.

🧬 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.

📃 Specifications

• 🧠 CPU: Ryzen 7 7800X3D
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  • 8 cores, 16 threads
  • 104MB total cache including 3D V-Cache — exceptional gaming performance
  • Market-leading efficiency and frame-time consistency
• ❄️ CPU cooler: Thermalright AXP120-X67 (low-profile ITX cooling)
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  • Compact top-flow design ideal for the Terra’s limited vertical space
  • Optimised for Ryzen X3D thermals
  • Exact fan models may vary — support can confirm your build's configuration
• 🔲 Motherboard: B850 ITX motherboard
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  • 8-phase VRM minimum for stable long-term performance
  • Chipset: B850
  • PC36 only uses boards chosen for stability and longevity — see our Trusted brands page.
  • Support can confirm the exact motherboard model on your purchase day.
• 📏 Memory / RAM: 32GB (2×16) DDR5-6000 CL30
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  • EXPO dual-channel tuning enabled
  • Ideal for gaming, creation and multitasking
  • Upgradable within listing options
• 💾 Storage: 1TB PCIe 4.0 NVMe SSD (HMB or DRAM)
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  • Fast OS, game and application loading
  • HMB or DRAM buffer depending on specific model
  • We use reputable SSD brands — see our Trusted brands page.
  • Support can confirm the exact SSD model.
• 🎮 Graphics card: NVIDIA RTX 5080 16GB
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  • A compatible model is selected to fit the Terra's strict length requirements
  • AIB brand varies based on availability — real-world performance is identical
  • Learn more via our Trusted brands page.
• 🧰 Case: Fractal Terra Black
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  • Premium aluminium and walnut aesthetic
  • Ultra-compact ITX layout
  • Alternative colours available on request (white, jade green)
• 🌬️ Case cooling: 1× 120mm basement exhaust fan (space permitting)
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  • Bottom-mounted exhaust improves GPU thermals
  • Fan included only if GPU clearance allows
• ⚡ Power supply: 850W 80+ Gold (ATX 3.1 certified)
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  • High-efficiency unit from reputable long-warranty brands
  • Typical units: Corsair RMe, Montech Century II, NZXT C, Gigabyte UD
  • Support can confirm exact PSU model
• 🔌 Cabling: Stock black cabling, neatly arranged
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  • Braided cable extensions available
  • Tidy layout prioritising airflow and upgrade access
• 📶 WiFi / Bluetooth / Ethernet: Included FREE
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  • WiFi 6 or 6E depending on board
  • Gigabit Ethernet
  • Bluetooth 5.x
• 🪟 Operating system: As chosen in the listing options
• 🧹 Setup and optimisation: High-class standard clean setup
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  • EXPO, Secure Boot, and fan curves configured
  • Vanilla Windows install with no bloat (if selected)
• 🛡️ Warranty: 3 years parts & labour (return to base)
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  • Standard 3-year hardware coverage
  • Extended warranties available in options

👁️ Transparency notes

• 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.
• 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 😊
• Small form factor (ITX) systems may have the CPU thermal limit (TJmax) set to around 75–80°C, especially with Ryzen X3D CPUs.

🛠️ Popular upgrade options

• Upgrade CPU to Ryzen 9 9800X3D for +£125 (not generally recommended due to heat buildup)
• RTX 5090 upgrades are not possible in this case
• Upgrade CPU cooler fan to Noctua NF-A12x15 for +£25

🎯 What is this PC best for?

• 4K gaming at high/ultra settings
• 1440p competitive gaming at extreme frame rates
• Heavy ray tracing workloads
• Premium compact setups where only the best will do
• Streaming, photo editing and creative workflows

📊 Performance estimates (1440p)

These figures are based on 1440p resolution. FPS may be higher at lower resolutions or lower at higher resolutions. Performance varies with game updates, maps, settings and background apps.

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

Estimated average FPS: 300-360 FPS
Native testing (no upscaling or frame generation).

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

Estimated average FPS: 130-180 FPS
Upscaling set to Auto (DLSS).

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

Estimated average FPS: 180–220 FPS
Native testing.

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

Estimated score:9000-10000

💬 Need help?

Not sure if this is the right spec for you? Ping us on live chat and we’ll help you choose the perfect PC for your games, work and budget.