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Aegis Three | RTX 5080 16GB + Ryzen 7 9800X3D | Ready-to-Go Gaming PC | PC36

Aegis Three | RTX 5080 16GB + Ryzen 7 9800X3D | Ready-to-Go Gaming PC | PC36

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🛡️ Aegis Three

Ultimate and unyielding

Aegis Three crowns the Aegis lineup. The Ryzen 7 9800X3D is AMD's flagship gaming processor and the one most people building at this level actually choose, the RTX 5080 handles 4K at ultra without asking for compromises, and a 240mm AIO keeps both composed while staying quiet enough to forget about. All of it sits behind the Lian Li Vector V100R's panoramic glass, where the build is on show from two sides rather than hidden in a box under the desk. This is the machine you buy when you have stopped wanting to think about settings.


🧬 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: AMD Ryzen 7 9800X3D
    Click or tap for deeper spec info
    • 8 cores, 16 threads of Zen 5, with second-generation 3D V-Cache sitting underneath the cores rather than on top of them, which is what lets it clock high and cache heavily at the same time
    • AMD's flagship gaming processor and by some margin the most popular high-end chip we fit. In CPU-bound titles, competitive shooters and simulation games especially, that stacked cache is what separates it from a conventional processor
    • Still a genuinely strong productivity chip, so streaming, editing and compiling all sit comfortably alongside the gaming performance
    • Unlocked for overclocking, which is what the Ultimate Performance Tune option makes use of
  • ❄️ CPU cooler: Thermalright Aqua Elite V6 240mm AIO liquid cooler
    Click or tap for deeper spec info
    • 240mm radiator with two 120mm PWM fans, top-mounted so the heat leaves the case directly rather than being pushed around inside it
    • The 9800X3D runs cooler than most flagship chips to begin with. Pairing it with a 240mm AIO means the fans rarely need to spin up, so the machine stays quiet under sustained load rather than only at idle
    • A 360mm radiator upgrade is available if you want the absolute maximum headroom. See the upgrade options below
  • 🔲 Motherboard: ASRock B850 Riptide WiFi (ATX)
    Click or tap for deeper spec info
    • 14+2+1 phase power design with 80A DrMOS on Vcore and SOC. Plain English translation: overkill power handling, which means any socket AM5 CPU will run beautifully in this motherboard if you choose to upgrade later. The board never becomes the limit, whether you overclock now or move up the stack in a few years
    • PCIe 5.0 x16 for the graphics card, so the slot is ready for the generation of cards after this one as well as the RTX 5080 fitted today
    • Four M.2 slots, one of them PCIe Gen5 x4, on an 8-layer PCB. Three drives can be added later without touching what is already installed
    • Wi-Fi 7, Bluetooth 5.4 and 2.5 Gigabit Ethernet onboard
    • PC36 only uses motherboards chosen for stability and longevity. See our Trusted brands page
  • 📏 Memory / RAM: 32GB (2×16GB) DDR5-6000 CL36
    Click or tap for deeper spec info
    • EXPO-tuned dual channel DDR5-6000, the speed Ryzen responds to best on AM5
    • 32GB is the right amount at this tier: enough for 4K gaming with a browser, Discord and a capture running alongside, without paying for capacity that sits idle
    • Specification guaranteed, model may vary. Happy to confirm the exact part on request
  • 💾 Storage: 1TB NVMe PCIe 4.0 SSD (TLC)
    Click or tap for deeper spec info
    • TLC flash rated at 6,500MB/s or better, which holds its speed on long sustained writes rather than dropping off once a cache fills. On a build at this price we do not fit QLC drives
    • Higher write endurance than the entry-tier alternative, which matters if you record gameplay, edit video, or simply install and uninstall a lot
    • Fitted in the Gen5 M.2 slot's neighbour, leaving the fastest socket free for a future drive
    • Specification guaranteed, model may vary. Happy to confirm the exact part on request
  • 🎮 Graphics card: NVIDIA RTX 5080 16GB (shipped separately for safety, see below)
    Click or tap for deeper spec info
    • This is a bulky and valuable graphics card, and as such it will be shipped separately with instructions for you to install it upon receipt
    • To be clear about what that means: the card is fitted into this exact system, stress tested in it, and only then carefully removed and boxed for transit. Your machine is built and validated as a whole. We do not drop-ship graphics cards or send you parts to assemble
    • Genuine 4K ultra performance in modern AAA titles, with the ray tracing hardware and DLSS 4 frame generation to keep path-traced games playable rather than theoretical
    • 16GB of GDDR7 on a 256-bit bus, feeding textures fast enough that 4K stops being the thing that limits your settings
    • The chipset and VRAM are guaranteed: it will always be an RTX 5080 with 16GB. The AIB brand varies with availability, and we only use established manufacturers. See our Trusted brands page for more info
  • 🧰 Case: Lian Li Vector V100R
    Click or tap for deeper spec info
    • Panoramic tempered glass across the front and side, with a raised display platform that lifts the build rather than hiding it
    • Integrated RGB strip that ties into the fans and cooler for a single, coherent lighting scheme
    • Supports graphics cards up to 420mm and CPU coolers up to 178mm tall, with clearance to spare for the RTX 5080
    • The top mount takes up to a 360mm radiator, which is what makes the AIO upgrade straightforward later
    • Alternative colourways are often available by request via live chat
  • 🌬️ Case cooling: 4 × 120mm ARGB fans included with the case (3 side intake, 1 rear exhaust), plus 2 × 120mm on the AIO radiator
    Click or tap for deeper spec info
    • Three intake fans mounted on the side panel feed cool air directly onto the graphics card, with a rear exhaust pulling heat straight back out
    • The AIO's two radiator fans sit in the top mount and exhaust upward, so CPU heat and GPU heat never compete for the same path
    • Six fans in total, all tuned before dispatch. Airflow is verified through our standard stress testing rather than assumed
  • Power supply: Montech Century II 850W 80+ Gold, fully modular
    Click or tap for deeper spec info
    • Includes a native 12V-2x6 cable. That is the connector the RTX 5080 uses, so the card plugs straight in with no adaptor and no dongle, and a future GPU upgrade will be the same
    • ATX 3.1 certified, which means it is built to absorb the brief power spikes modern graphics cards produce rather than tripping over them
    • 850W gives the 5080 and 9800X3D comfortable headroom, with room left for an overclock or a step up in graphics card
    • Fully modular, so only the cables this build actually uses are installed. Less clutter behind the tray and a cleaner view through the glass
    • The Century II has an excellent reputation for build quality among people who test power supplies properly, and it is backed by a 10 year manufacturer warranty. That length of cover is not something a manufacturer offers on a unit it expects to see returned
    • See our Trusted brands page for the full list of what we fit and why
  • 🔌 Cabling: Stock black cabling, neatly arranged
    Click or tap for deeper spec info
    • Visible runs finished cleanly. The rear chamber is kept tidy but not overtightened, which makes future upgrades easier
    • Braided cable extensions in your choice of colour are available via the upgrade options
  • 📶 WiFi / Bluetooth / Ethernet: Wi-Fi 7, Bluetooth 5.4 and 2.5 Gigabit Ethernet, included
    Click or tap for deeper spec info
    • Wi-Fi 7 and Bluetooth 5.4 are built into the ASRock B850 Riptide WiFi. No separate adapter needed, and the aerial is supplied in the box
    • Wi-Fi 7 adds the 6GHz band and wider channels, which is usually far less congested than 2.4 and 5GHz if your router supports it
    • 2.5 Gigabit Ethernet for a wired connection, which we would still recommend for competitive play
  • 🪟 Operating system: As chosen by you from the listing options below. Windows 11 Home (OEM) is recommended.
  • 🧹 Setup and optimisation: PC36 High-Class Standard. Full stress test with certificate, bloat-free installation, and BIOS set up properly
    Click or tap for deeper spec info

    PC36 High-Class Standard, included free with every build

    • Ready the moment you open the box. Your PC boots straight into Windows with a local account already set up. No account sign-in wall, no first-run questionnaire, no half-hour of setup before you can use the machine you just bought
    • BIOS updated and configured properly: manual fan curves, PBO enabled, EXPO/XMP enabled, Secure Boot enabled
    • Vanilla Windows 11 installation if you choose Windows, with no bloatware added by us, and all drivers loaded and ready to go
    • Full stress test with certificate. Every system is torture tested on CPU, RAM and GPU before dispatch, and ships with the certificate to prove it

    PC36 Premier Optimisation, available in the listing options

    • CPU tuning to bring thermals and noise down with minimal performance loss, plus a deeper strip and debloat of Windows
    • Worth it if you want the quietest, leanest possible machine and would rather we spent the hours on it than you did

    PC36 Ultimate Performance Tune, available in the listing options

    • Advanced overclocking: RAM tune, CPU tune and GPU overclock on top of everything in Premier
    • This is the tier of build the Ultimate tune exists for. The 9800X3D is unlocked, the RTX 5080 has real headroom above stock, and the 240mm AIO and 850W Gold supply are already specified to support it. If you are going to buy the tune on any PC36 machine, this is one where the money returns something you can measure
  • 🛡️ Warranty: 3 years parts & labour (return to base)
    Click or tap for deeper spec info
    • Standard 3-year coverage included, parts and labour both
    • Optional extended warranties in the listing options below
Why don't all parts list a brand and model?

Most of our spec is named exactly. The processor, motherboard, case, cooler and power supply are the models listed, every time.

For memory, storage and graphics cards we give a performance and quality guarantee instead of a model name. Supply on these three moves constantly, and pricing with it. Rather than list a part we might not be able to source next week, we commit to the specification: capacity, speed, timings, endurance class. And for graphics cards, we will always give you the chipset (e.g. RTX 5080) and VRAM (e.g. 16GB) that is listed.

We only use parts from established manufacturers. In practice the difference between two well-made components at the same specification is small enough that most people would never notice it.

If you'd like to know exactly what's going into your machine, ask before you order and we'll tell you. If you'd prefer a particular model, we can usually accommodate that, and you'd pay the difference in cost.


👁️ Transparency notes

  • The graphics card ships in its own box. This system contains a bulky and highly valuable graphics card. Therefore, we will ship the graphics card in a separate box, and provide simple instructions showing you how to install it. All graphics cards have a point of weakness at the "PCIe" connector. Separate shipping of the card prevents shipping damage to the graphics card which may occur despite our industry-leading packaging methods. If you have any queries about this, please contact us.
  • 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.
  • RGB heatspreaders on the RAM are not guaranteed unless the quick add-on is chosen.
  • Most parts are named models and will be what is delivered. RAM, SSD and graphics card will instead carry a spec guarantee due to current market conditions making stock very variable. This keeps us agile enough to offer good pricing and honest spec lists. If you want clarity on precise models we will use, drop us a live chat on the day you're ready to purchase and we'll confirm it.

🛠️ Popular upgrade options

  • Need a monitor, keyboard or mouse? Scroll past the add to cart button. We've paired specific peripherals to get the best out of this build.
  • Storage and RAM upgrades: available in the listing options below.
  • AIO upgrade, 240mm to 360mm radiator: available via live chat.
    Click or tap for more info

    Worth it if you plan to take the Ultimate Performance Tune, or if the machine will sit close to you on a desk. The extra radiator area does not lower temperatures dramatically, but it lets the fans run slower for the same result, which is what you actually hear. At stock settings the 240mm is already sufficient.

  • Braided cable extensions: available from the quick-add upgrades section.
    Click or tap for more info

    Worth it if you want the interior to match the build, since the V100R's panoramic glass leaves the cable runs on show from two angles. Choose your colours by leaving a note on your order or contacting us via live chat.

  • GPU upgrade to RTX 5090 32GB: available via live chat.
    Click or tap for more info

    Worth it if you are running 4K at high refresh, using path tracing, or working with large 3D and AI workloads where the 32GB of VRAM is the point. For 4K gaming at 60 to 100 FPS the 5080 already does the job, and the step up is a large amount of money for a smaller jump than the price difference suggests. Ask us and we will be straight with you about whether your games justify it.

  • CPU upgrade to Ryzen 9 9950X3D: available via live chat.
    Click or tap for more info

    Worth it only if you do heavy productivity work such as rendering, compiling or multi-track video editing. For gaming alone the 9800X3D is as fast, sometimes fractionally faster. We would rather tell you that than sell you the upgrade.


🎯 What is this PC best for?

  • 4K gaming at ultra settings in modern AAA titles
  • Ray tracing and path tracing with DLSS 4 frame generation
  • Competitive and esports titles at very high frame rates, where the 9800X3D's cache does the heavy lifting
  • Livestreaming and content creation alongside gaming, without frame rate penalties
  • Buyers who want a machine that will not need thinking about again for several years

📊 Performance estimates

Figures are given at both 1440p and 4K. Performance varies with game updates, maps, settings and background apps. These are estimates, not guarantees.

Fortnite logo Fortnite - Competitive Settings (click or tap to expand)

1440p: 350-450 FPS
4K: 200-260 FPS
Native testing (no upscaling or frame generation).

Cyberpunk 2077 logo Cyberpunk 2077 - Ray Tracing Medium (click or tap to expand)

1440p: 140-180 FPS
4K: 90-120 FPS
Upscaling set to Auto (DLSS / FSR / XeSS based on GPU).

Battlefield 6 logo Battlefield 6 - High Settings (click or tap to expand)

1440p: 170-210 FPS
4K: 95-125 FPS
Native testing (no upscaling or frame generation).

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

Estimated score: 10,000-11,000


💬 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. You'll be talking to one of us, not a chatbot.

💻 Love this PC? Make it a full setup below ↓Recommended monitor, keyboard and mouse for this PC just below Add to Cart

🔒 Secure Shopify checkout 🛡️ Warranty included

Regular price £2,529.00
Regular price Sale price £2,529.00
Sale Sold out
Taxes included. Shipping calculated at checkout.
View full details

🖥️ Complete the setup

Monitors and peripherals we'd actually pair with this specific build. Curated, not catalogued.
White colourways available - simply contact us to arrange

Monitors

ASRock Phantom Gaming PG27QFW2A — 27" 1440p 400Hz Fast IPS Gaming Monitor

400Hz IPS for competitive shooters where frame rate matters most - with a panel that still delivers punchy colours and rapid response times. Built to handle multiple GPU upgrades without ever feeling like the bottleneck.

MSI MPG 271QR QD-OLED X50 — 27" 1440p 500Hz QD-OLED Gaming Monitor

The competitive flagship. 1440p 500Hz QD-OLED for serious play, with DisplayPort 2.1 keeping it future-proof against the next GPU generation. If you need every speed advantage in-game, this is the monitor for you

See all monitors we stock →  or message us via live chat for a tailored recommendation.

Keyboard & mouse

Our daily driver. A few of us at PC36 use this exact combo every day — years in, they still perform like day one.

White colourways available on some products — message us via live chat to confirm stock and we'll arrange.

⭐⭐⭐⭐⭐ “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 - you can read our SOP here: LINK

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

Optimisation Options

Pick the level of tuning you want — from correct setup, to fully unlocked performance and validation.

Optimisation Standard
Included
Premier
£99 · Most Popular
Ultimate
£299 · No Compromise
Clean Windows install & drivers
Fan curves & noise optimisation
CPU performance tuning (Ryzen: PBO + Curve Optimiser + limits)
Windows debloat & responsiveness tweaks (reduced background services, faster UI, snappier feel)
RAM latency tuning (better 1% lows)
GPU tuning (overclock by default · undervolt on request for creators/silence)
Extended stress testing (incl. overnight memory validation)

Standard

Sensible, clean set up that just works.

Included
  • Clean Windows install & drivers
  • Fan curves & noise optimisation

Premier

Improved performance and day-to-day simplicity. Best value for most builds.

£99 · Most Popular
  • Everything in Standard
  • CPU performance tuning (Ryzen: PBO + Curve Optimiser + limits)
  • Windows debloat & responsiveness tweaks (reduced background services, faster UI, snappier feel)

Ultimate

Maximum performance, plus deeper testing and validation.

£299 · No Compromise
  • Everything in Premier
  • RAM latency tuning (platform best-practices)
  • GPU tuning (overclock by default · undervolt on request for creators/silence)
  • Extended stress testing (incl. overnight memory validation)
  • White ITX gaming PC in Fractal Terra case. PC36

    Small Form Factor ("ITX")

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

    One of our specialties at PC36.

    ✅Compact
    ✅Beautiful
    🤔A little more expensive

    Shop ITX builds 
  • Medium Form Factor ("mATX")

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

    ✅Compact
    ✅Beautiful
    ✅Excellent pricing

    Shop mATX builds 
  • 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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