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Memoir Three | RTX 5080 16GB + i9 12900K | Ready-to-Go Gaming PC | PC36

Memoir Three | RTX 5080 16GB + i9 12900K | Ready-to-Go Gaming PC | PC36

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📖 Memoir Three

Flagship Intel power, value-first mindset

Memoir Three is the top of the Memoir lineup: a 16-core Intel i9, RTX 5080 graphics, and a 360mm liquid cooler in the Corsair Frame 4000D. It is built for high refresh 1440p, confident 4K, and serious creative workloads while using a value-forward Intel DDR4 platform to sidestep current DDR5 price spikes.

🧬 Built to last, designed to evolve

Every PC36 system is upgradable over time, so your investment grows with your needs. Customers can request tweaks or modifications - GPU swaps, cooler changes, or even case style swaps - to make Memoir Three truly their own.

The Memoir series uses an older DDR4 platform due to recent DDR5 price spikes - this represents great value today but with more limited upgrade options on the CPU (GPU, case, storage etc are all easily upgradable).

While the CPU platform has a more defined ceiling, the graphics card, storage, cooling, and even the case can all be swapped or scaled up in future, so the system can adapt to new games, workloads, and peripherals over time.

📃 Specifications

  • 🖥️ CPU: Intel Core i9 12900KF (16 cores - excellent for high refresh gaming and demanding productivity)
  • ❄️ CPU cooler: 360mm (3-fan) ARGB liquid cooler
  • 🔲 Motherboard: B760 ATX motherboard with at least a 12-phase VRM to comfortably handle the CPU
  • 📏 Memory/RAM: 32GB (2x16) DDR4-3200 CL16
  • 💾 Storage: 1TB PCIe 4.0 M2 NVME SSD (HMB or DRAM buffering) included as standard (upgrades available in options below)
  • 🎮 Graphics card: NVIDIA RTX 5080 16GB
  • 🧰 Case: Corsair Frame 4000D
  • 🌬️ Case cooling: 4 × 120mm ARGB fans plus the fans on the liquid cooler
  • ⚡ Power supply: 1000W 80+ Gold PSU, trusted brand
  • 🪟 Operating system: As chosen by you from the listing options below (Windows 11 Home Recommended)
  • 📶 Connectivity: Ethernet/WiFi/Bluetooth included FREE with all PC36 PCs
  • 🔌 Cabling: Stock cabling
  • 🛡️ Warranty: 3 years parts & labour included (with extensions available via the listing options below)

👁️ Transparency Notes

  • We sometimes use generic terms ("1000W Gold PSU" "B760 Motherboard") due to variations in availability from our suppliers. Specific models can easily be confirmed via live chat. We only use tried and tested Western brands for a reliable and performant system - no cheap knock-offs.
  • Graphics cards are listed by chipset + VRAM as there is little to no difference in performance or quality between different board partner models. As always, the exact make/model is available on request.
  • The pictures shown are of another spec in this case. Your PC will look similar, but not identical. If you require further clarification, reach out via live chat where we will happily assist. A Corsair Nautilus 360mm liquid cooler is pictured for this photoshoot - if you would like this specific liquid cooler please contact us
  • Memoir uses a more mature but still capable Intel platform with DDR4 memory. This keeps the price accessible in the face of rising RAM costs, particularly DDR5. The trade-off is that long term upgrade options are more limited than an AM5 Ryzen platform, but the performance per pound today is excellent.

🛠️ Popular Upgrade Options

If you wish to upgrade RAM on this model please contact us rather than using the dropdown for a significant saving (This PC uses DDR4 memory which can be upgraded more economically)

  • £160 | 16-phase Z790 motherboard | click-tap to learn more

    Step up to a higher tier Z790 motherboard with a robust 16-phase VRM for extra headroom, more connectivity, and enthusiast-grade features.

    This upgrade opens the door to CPU overclocking and more advanced tuning. Please note that CPU overclocking is not covered by PC36 warranty and is done at the user's own risk. Exact models and pricing are shown in the listing options above/below.

  • £40 | Braided cables | click-tap to learn more

    Add a set of braided extension cables for a cleaner, more premium look inside the Corsair Frame 4000D. Braided cables help tidy up the visual layout of your build and pair especially well with ARGB lighting.

    Ask us about colour options.

  • Variable price | White colourway | click-tap to learn more

    Prefer a bright, modern aesthetic? Request a white-focused colourway for your build, with white case and matching component choices where available.

    This is subject to stock and specific case/component availability. Please contact us via live chat for current options and pricing, and we will confirm exactly what your white Memoir Three will look like before you commit.

  • Variable | RAM and storage options | click-tap to learn more

    Need more capacity for large game libraries, project files, or creative workloads? You can scale up memory and storage directly from the listing options below. 32GB RAM is enough for a pure gaming machine and is wise with current RAM prices rising. If 64GB is required, either add from the listing or ask us for a custom quote

    • Higher capacity NVMe SSDs for big game and media libraries.
    • Additional SSDs or HDDs for bulk storage and backup.
    • Increased RAM capacity for heavy multitasking and creative work.

    All available RAM and storage upgrades, along with current pricing, are listed in the configuration options below.

🎯 What is this PC best for?

  • 1440p gaming at ultra settings with high refresh rates
  • Confident 4K gaming at high settings
  • Content creation, video editing, and photo work
  • Heavy multitasking and productivity workloads
  • Everyday computing, study, and work with power to spare

💬 Need help?

Ping us on live chat and we’ll help you find your perfect PC.

🔒 Secure Shopify checkout 🛡️ Warranty included

£1,999.00
£1,999.00
Sale Sold out
Taxes included. Shipping calculated at checkout.
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Memoir Three | RTX 5080 16GB + i9 12900K | Ready-to-Go Gaming PC | PC36
£1,999.00 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
  • PayPal Credit available by contacting us

👁️Transparency
For your information:
Bank transfer costs us 0% in transaction fees
Debit/credit card costs us 2% in transaction fees

PayPal Credit available by request; contact us

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

    One of our specialties at PC36.

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    🤔A little more expensive

    Shop ITX builds 

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    ✅Maximum upgrade potential
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    Shop ATX builds 
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Let customers speak for us

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!

J.C.
Jamal C | Custom Spec PC | PC36
Jamal C | Custom Spec PC | PC36