Ro Three | RX 9070 16GB + Ryzen 7 7800X3D | Ready-to-Go Gaming PC | PC36

🪨 Ro Three

Full-sized performance. Furniture-grade presence.

Ro Three is what happens when you want excellent 1440p and 4K performance in a really tiny package. The Ryzen 7 7800X3D and RX 9070 deliver genuine high-refresh 1440p and confident 4K performance — all packed into the Jonsbo T9's beautiful chassis featuring real woods. It doesn't announce itself. It just sits on your desk looking like it belongs there, and performs like nothing its size has any right to.

We are small form factor specialists at PC36 - we know how to pack high performance into tiny builds without runaway temperatures or awkward assembly

🧬 Built to last, designed to evolve

This system is built on AMD's latest AM5 platform, which offers one of the best 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 7800X3D
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  • 8 cores, 16 threads with AMD 3D V-Cache — the architecture that consistently leads real-world gaming benchmarks at 1440p and 4K
  • The 7800X3D is chosen here because its 3D V-Cache delivers a genuine, measurable advantage in gaming that no other mainstream CPU architecture currently matches
  • BIOS settings are tuned specifically for the Ro Three's ITX environment — power limits are configured to sustain high performance without allowing thermals to run away under extended load. This is a deliberate setup decision, not a limitation
• ❄️ CPU cooler: Thermalright AXP-120 X67
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  • A purpose-designed low-profile air cooler at 67mm height — chosen specifically for its fit within the Jonsbo T9's compact interior without sacrificing cooling quality
  • The AXP-120 X67 is one of the strongest performers in its height class — this is a deliberate component choice, not a compromise forced by the case
  • Keeps the 7800X3D within safe operating temperatures under sustained load when paired with PC36's BIOS tuning profile
• 🔲 Motherboard: B850 ITX motherboard
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  • ITX form factor to fit the Jonsbo T9's compact layout
  • 8-phase minimum VRM providing stable, clean power delivery for the 7800X3D. Typically we use a 10 or 12-phase VRM, or if an 8-phase VRM is used it will feature high-Amp stages
  • B850 chipset with strong AM5 platform support and long-term BIOS development
  • 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 CL36
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  • EXPO-tuned dual channel DDR5 at the speed AMD Ryzen 7000 responds to best
  • 32GB provides headroom for gaming, streaming, content creation and background tasks without bottlenecking elsewhere
• 💾 Storage: 1TB PCIe 4.0 NVMe SSD as standard
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  • Fast PCIe 4.0 read/write speeds for snappy OS responsiveness and rapid game loading
  • HMB or DRAM buffering depending on model, chosen for strong real-world performance
  • 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.
  • If your game library is large, a 2TB upgrade is available in the listing options below.
• 🎮 Graphics card: Radeon RX 9070 16GB
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  • Chosen specifically for Ro Three - the 9070 provides excellent 4K and 1440p gaming performance, whilst remaining small form factor friendly
  • 16GB VRAM handles demanding textures and rendering workloads at 4K without hesitation
  • FSR 4.0 provides significant additional frame rate headroom in supported titles
  • AIB model is selected specifically for physical compatibility with the Jonsbo T9 interior — not all 9070 models fit. PC36 confirms sizing before every build.
  • Support can confirm the exact card model on request.
  • See our Trusted brands page for more info.
• 🧰 Case: Jonsbo T9 — Black
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  • Premium ITX case with a vertically slatted aluminium panel and solid walnut base — designed to sit on a desk as an object, not just a PC
  • The T9's proportions and material quality place it in a different category from most ITX cases — it is closer to furniture than gaming hardware
  • Compact footprint fits comfortably on a desk, shelf, or living room unit
  • No RGB — the T9's aesthetic is deliberate restraint, and Ro Three is built to match it
• 🌬️ Case cooling: 1 × 120mm top exhaust fan
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  • Single top exhaust draws heat upward and out — the correct airflow path for the T9's layout
  • Combined with the AXP-120 X67's direct CPU cooling and the GPU's own fans, this provides adequate airflow for the build when paired with PC36's BIOS tuning profile
  • Fan speed curves are tuned to balance thermal performance with acoustic comfort
• ⚡ Power supply: 850W 80+ Gold SFX ATX 3.1 certified
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  • SFX form factor required for the Jonsbo T9's compact PSU bay
  • 850W provides comfortable headroom for the RX 9070 and 7800X3D combination
  • ATX 3.1 certified with modern power connector support where applicable
  • Exact unit varies but always from reputable, long-warranty brands
  • Support can confirm the exact PSU model.
• 📶 WiFi / Bluetooth / Ethernet: Included FREE
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  • Most builds include WiFi 6 + Gigabit Ethernet + Bluetooth.
  • Occasionally WiFi 5 may be used on certain boards depending on availability.
  • 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
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  • BIOS configured specifically for ITX thermal management — PBO tuned, EXPO/XMP enabled, Secure Boot on, fan curves set for acoustic comfort under load.
  • 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)
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  • 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.
• We sometimes give a performance guarantee rather than specifying an exact brand of certain components. 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. In any case, we only use parts that make sense, not just to pad our bottom line 😊
• This system is built inside a compact ITX case. Thermals are managed carefully through component selection and BIOS tuning, and we configure safety parameters to ensure temperatures will not exceed safe limits under any use condition. Peak temperatures and noise will run higher than in a full-size mid-tower build — this is expected for ITX systems and does not affect reliability or longevity when set up correctly.
• ITX systems offer excellent build density but come with more restricted upgrade options due to their size. If you'd prefer a slightly larger but still compact system that removes this limitation, speak to us on live chat and we'll point you in the right direction.

🛠️ Popular upgrade options

• Storage upgrade to 2TB PCIe 4.0 NVMe: available in the listing options below — worth it if your game library is large or you store video and media locally.
• Ryzen 7 9800X3D CPU: available but not recommended. This is difficult to keep cool inside such a tiny case. It can be done, but talk to us first because it needs specific tuning
• RX 9070 XT and RTX 5070 Ti (and above) will not fit in this case so cannot be accommodated
• 1000W SFX PSU: available via live chat — worth considering if you plan to push this system further over time or want additional headroom for peace of mind. The larger unit also runs its fan at lower speeds under typical load, which may be noticeable for sound-sensitive users.

🎯 What is this PC best for?

• High refresh rate 1440p gaming without a full-size tower on the desk
• 4K gaming at high to ultra settings in modern AAA titles
• Living room or bedroom setups where the PC needs to look as considered as everything around it
• Buyers who want the performance of a serious gaming PC in something that doesn't look like one
• Anyone who values build quality, material choices and restraint over RGB and glass panels

📊 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: 340-420 FPS
Native testing (no upscaling or frame generation).

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

Estimated average FPS: 115-145 FPS
Upscaling set to Auto (DLSS / FSR / XeSS based on GPU).

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

Estimated average FPS: 150-180 FPS
Native testing (no upscaling or frame generation).

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

Estimated score:7000-8000

💬 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.