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  • White ITX gaming PC in Fractal Terra case. PC36
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Lumen Three | RTX 5080 + Ryzen 7 7800X3D | Ready-to-Go Gaming PC | PC36

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

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🌞 Lumen Three

The Peak of Light

At the very top of the Lumen range, Lumen Three represents the peak of compact performance and clarity. Built inside the silver–white Fractal Terra, it combines minimalist elegance with maximum power — pairing the Ryzen 7 7800X3D with an NVIDIA RTX 5080 16GB. This is for those who demand cutting-edge gaming in a premium, Apple-like enclosure where every millimetre is carefully considered.

The Fractal Terra carries a premium for good reason: its compact size demands carefully chosen, high-performance components. Lumen Three makes every millimetre count.

🧬 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
    Click or tap for deeper spec info
    • 8 cores, 16 threads
    • 104MB total cache including 3D V-Cache — outstanding gaming performance
    • One of the fastest and most efficient gaming CPUs available today
  • ❄️ CPU cooler: Thermalright AXP120-X67 (low-profile ITX cooling)
    Click or tap for deeper spec info
    • Low-profile, efficient top-down cooler ideal for tight ITX layouts.
    • Helps keep VRM and memory temperatures under control in compact builds.
    • If stock varies, support can confirm the exact cooler model on request.
  • 🔲 Motherboard: B850 ITX (AM5, high quality VRM)
    Click or tap for deeper spec info
    • Robust multi-phase VRM (typically 8+ phases) to comfortably handle X3D CPUs.
    • Chipset: B850 ITX with modern connectivity and strong power delivery.
    • PC36 only uses motherboards chosen for stability and longevity — see our Trusted brands page.
    • Support can confirm the exact motherboard model on the day of purchase.
  • 📏 Memory / RAM: 32GB (2×16GB) DDR5-6000 CL30
    Click or tap for deeper spec info
    • Low-latency EXPO/XMP tuned dual channel memory — ideal for Ryzen X3D CPUs.
    • Excellent for high-end gaming, streaming and creative workloads.
    • Upgradable within the listing options.
  • 💾 Storage: 1TB PCIe 4.0 NVMe SSD as standard
    Click or tap for deeper spec info
    • Fast read/write speeds for snappy OS and game loading.
    • HMB or DRAM buffering depending on the SSD model.
    • PC36 only uses reputable SSD brands — see our Trusted brands page.
    • Typical midrange SSD: MSI Spatium M470 Pro • Premium: Crucial T500.
    • Support can confirm the exact SSD model at time of purchase.
  • 🎮 Graphics card: NVIDIA RTX 5080 16GB
    Click or tap for deeper spec info
    • High-end RTX GPU chosen specifically for Fractal Terra compatibility.
    • AIB brand varies with availability, but performance is equivalent between reputable partners.
    • Support can confirm the exact card model, cooler design and length on request.
  • 🧰 Case: Fractal Terra Silver / White (ITX)
    Click or tap for deeper spec info
    • Premium CNC aluminium chassis with genuine wood front accent.
    • Ultra-compact ITX form factor with a focus on high-end components.
    • Internals are pictured in white, but this order will ship with black internal components. Contact us if you'd prefer white internals to match the case.
  • 🌬️ Case cooling: 1 × 120mm basement exhaust fan (space permitting)
    Click or tap for deeper spec info
    • Basement exhaust fan helps remove GPU and PSU heat from the lower chamber.
    • Installation depends on GPU length and clearance; we optimise based on chosen GPU.
  • ⚡ Power supply: 850W 80+ Gold ATX 3.1 certified, trusted brand
    Click or tap for deeper spec info
    • ATX 3.1 certified to handle modern GPU transient power spikes.
    • Typical units:
      850W+: Corsair RMe, Montech Century II, Gigabyte UD, Cooler Master MWE Gold, NZXT C
      750W: Deepcool PL750D
      500W: Deepcool PF500
    • Support can confirm the exact PSU model.
  • 🔌 Cabling: Stock black cabling, neatly arranged
    Click or tap for deeper spec info
    • Braided cable extensions available via upgrade options.
    • Visible areas finished cleanly; rear chamber tidy but not overtightened for easier upgrades.
  • 📶 WiFi / Bluetooth / Ethernet: Included FREE
    Click or tap for deeper spec info
    • Most B850 ITX boards include WiFi 6, Bluetooth, and Gigabit Ethernet.
    • Support can confirm exact connectivity if needed.
  • 🪟 Operating system: As chosen by you from the listing options below. Windows 11 Home (OEM) is recommended.
  • 🧹 Setup and optimisation: High class standard clean setup
    Click or tap for deeper spec info
    • BIOS configured appropriately (PBO, EXPO/XMP, Secure Boot, tuned fan curves).
    • If Windows 11 is selected, it is installed as a vanilla installation with no bloat.
    • Additional optimisation options available within the listing upgrades.
  • 🛡️ Warranty: 3 years parts & labour (return to base)
    Click or tap for deeper spec info
    • Standard 3-year coverage included.
    • Optional extended warranties in listing options below.

👁️ 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. In this Lumen series, internals are pictured in white, but this order will ship with black internal components. Contact us if you'd prefer white internals to match the case.
  • 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 80°C.

🛠️ Popular upgrade options

  • Storage upgrades available in the listing options below.
  • RAM upgrades available in the listing options below.
  • Braided cables: +£40
  • On-request CPU change: Ryzen 9 9800X3D for +£125 (not generally recommended due to heat build-up — may slightly reduce performance in this tiny case)
  • RTX 5090 upgrades are not possible in this case. On-request fan swap to Noctua NF-A12x15 for +£25 can improve acoustics and thermals.

🎯 What is this PC best for?

  • 4K gaming with high/ultra settings
  • 1440p competitive gaming at extreme frame rates
  • Modern AAA titles with ray tracing enabled
  • Compact, premium setups where only the best will do
  • Streaming, photo editing, and creative workloads

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

Estimated average FPS: 320-400 FPS
Native testing (no upscaling or frame generation).

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

Estimated average FPS: 140-200 FPS
Upscaling set to Auto (DLSS / FSR / XeSS based on GPU).

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

Estimated average FPS: 160–210 FPS
Native testing (no upscaling or frame generation).

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

Estimated score:9000

💬 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.

🔒 Secure Shopify checkout 🛡️ Warranty included

£2,499.00
£2,499.00
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Taxes included. Shipping calculated at checkout.
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Lumen Three | RTX 5080 + Ryzen 7 7800X3D | Ready-to-Go Gaming PC | PC36
£2,499.00 GBP
4.6/5 rating on Trustpilot Read reviews →
⭐⭐⭐⭐⭐ “Quality is unmatched and the care that goes into every step is clear.”
⭐⭐⭐⭐⭐ “Fantastic experience — build quality is superb and everything works perfectly.”
⭐⭐⭐⭐⭐ “Cable management and overall presentation were immaculate. Highly recommended.”
⭐⭐⭐⭐⭐ “Delivery was very quick and the packaging was extremely secure.”
⭐⭐⭐⭐⭐ “PC runs great, really good value for money and arrived spotless.”
⭐⭐⭐⭐⭐ “Quality is unmatched and the care that goes into every step is clear.”
⭐⭐⭐⭐⭐ “Fantastic experience — build quality is superb and everything works perfectly.”
⭐⭐⭐⭐⭐ “Cable management and overall presentation were immaculate. Highly recommended.”
⭐⭐⭐⭐⭐ “Delivery was very quick and the packaging was extremely secure.”
⭐⭐⭐⭐⭐ “PC runs great, really good value for money and arrived spotless.”
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Ready-to-Go PCs

The PC36 Way

⚡Ready-to-Go PCs

Our favourite Gaming PC designs built to order

You choose how much storage you need from the dropdown list, as well as any other upgrades alongside

These are spec'd by us for balance and high-performance

Not quite the spec you want? Or need to change something that's not in the options? Chat with us via the chat bubble icon

Every system is hand-built in Torquay, UK by PC36 - combining clean design, quiet performance, and exceptional reliability

🛠️ Customisation and Upgrades

If there is a change or upgrade you would like to make that can't be done directly from the listing, please contact us and we'll make it happen 😎

🔑 Easy Set-up

PC36 systems are the easiest to own. Simply plug it in, power it on, and use. No fiddling, no setup screens, no driver hunts. We deliver a clean Windows install with the latest drivers pre-installed, so you’re gaming or working straight out of the box.

✅ Testing

Every PC36 system undergoes rigorous stress testing before it leaves our workshop. We push it harder than you ever will — if it fails, we don’t ship it.

100% CPU + RAM + GPU torture tests performed all together for the ultimate stress test

👁️Transparency

Look out for the 👁️ symbol

Here we tell you important info to ensure you know exactly what you're buying and what alternatives might be available

Ready-to-Go PCs

Helpful info

How Long Until I Get My PC?

Build time is typically 7-10 days

Shipping time is typically 3 days

Most orders are delivered within 10-14 days. If you need it faster please get in touch

If you pay by bank transfer, we can build your PC faster, knocking 2-3 days off the standard completion time

In rare circumstances where availability is low, there may be a delay - we will contact you if so. Rest assured, your payment is not actually taken until stock is confirmed

Delivery and Packaging

Most PCs are delivered via DPD

Delivery is normally made on weekdays. You can change the delivery day (including weekends) via the tracking number or DPD app

PC36 has a unique triple-secure shipping method:

  1. The interior of the PC is protected with Instapak
  2. The PC is placed within the case box with foam inserts
  3. Then a larger second box is padded. The case box is placed inside this box for additional protection

We include as many of the individual component boxes as we can fit in the package, because it helps you with resale value down the line

Please note shipments cannot be delivered to a "safeplace" nor to a neighbour. They must be received by a resident only

Further shipping policy details here

Trusted Brands

Due to stock variability, it is not always possible to specify the exact model of SSD/Motherboard/Power Supply/Board partner graphics card model in every listing, although they will always fulfil the spec/chipset described on the listing.

PC36 is a premium brand. We will only ever use components that make sense for a long term, stable, and performant system. That said, we are always happy to confirm the exact model we will use via live chat just before you purchase


See our Trusted brand list here

Warranty

PC36 offers a gold-standard 3-year warranty on all PCs

This covers component and assembly faults

It does not cover accidental, liquid, or vandalism damage, nor overclocking.

User error including pirated software or viruses is not covered

Repair/replacement is attempted first, and if unable to/uneconomical a refund may be offered

Full details here

Returns Policy

Returns are accepted within 14 calendar days of delivery, with the following conditions:

  • Buyer bears responsibility for return postage cost (unless faulty), and responsibility for the safety/condition of the parcel on its journey back to us
  • All serial numbers are recorded and any discrepancies will void the return
  • The PC and packaging must be returned in saleable as new condition. All packaging and accessories must be included in the return or it will be void
  • Refunds are sent directly to the payment method used for the order

See the full returns policy here

Payment Methods

We accept:

  • Direct bank transfer (add to cart and instructions are given)
  • Debit/credit card
  • Shop Pay

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  • White ITX gaming PC in Fractal Terra case. PC36

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    PCs with high performance but more portable and take up less desk space.

    One of our specialties at PC36.

    ✅Compact
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    🤔A little more expensive

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    PCs that strike the perfect balance between being compact, performant and upgrade-friendly. Our favourite size.

    ✅Compact
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  • Regular mid-tower ("ATX")

    PCs with maximal compatibility and room to breathe. The industry standard.

    ✅Maximum upgrade potential
    ✅Beautiful
    ✅Excellent pricing

    Shop ATX builds 
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from 1 reviews

Love my PC! Jack at PC36 did an amazing job. Answered all my quries and adbised me on oarts that would be better. If you want a PC built Jack is your go too!

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Jamal C | Custom Spec PC | PC36
Jamal C | Custom Spec PC | PC36