PC build
Blackwell X3D Enthusiast Gaming Rig
This enthusiast-grade PC is designed for high-refresh 1440p/4K gaming and compute-heavy professional tasks. The build features the AMD Ryzen 7 9850X3D, whi
Component prices & shopping links
0 recent in-stock offers · 1 last seen prices. The subtotal excludes parts without a recorded price. Last seen prices remain visible until a newer observation replaces them. GST inclusion depends on the merchant; shipping is separate.
| Part | Component | AUD price & shopping |
|---|---|---|
| cpu | AMD Ryzen 7 9850X3D | $745.00 Last seenOct 20, 2026, 8:45 AM UTCCurrent price and stock need a new check.Confirm variant, stock, shipping and tax at checkout. |
| gpu | NVIDIA GeForce RTX 5090 Founders Edition | Price not recorded yet. Check local retailers below.Confirm variant, stock, shipping and tax at checkout. |
| ram | 32GB RAM module or memory kit (exact model unspecified)The original record lists alternatives. Confirm the exact component before comparing purchase offers.Confirm the exact variant before buying | Price not recorded yet. Check local retailers below.Price or exact component identity is under review. It is excluded from the subtotal until confirmed.Confirm variant, stock, shipping and tax at checkout. |
| storage | 2TB NVMe Solid-State Drive | Price not recorded yet. Check local retailers below.Confirm variant, stock, shipping and tax at checkout. |
| psu | 1300W Power Supply | Price not recorded yet. Check local retailers below.Confirm variant, stock, shipping and tax at checkout. |
| case | Phanteks EX5 | Price not recorded yet. Check local retailers below.Confirm variant, stock, shipping and tax at checkout. |
What this build is good for
This enthusiast-grade PC is designed for high-refresh 1440p/4K gaming and compute-heavy professional tasks. The build features the AMD Ryzen 7 9850X3D, which leverages 3D V-Cache for optimized gaming performance, paired with the powerful NVIDIA GeForce RTX 5090. The system is housed in the Phanteks EX5, a compact mid-tower with a unique multi-chamber layout designed to isolate heat. Due to the case's strict 72mm CPU air cooler clearance, utilizing a 360mm AIO liquid cooler is mandatory for thermal management. With the RTX 5090's significant power draw, the 1300W PSU is an appropriate selection, provided it is ATX 3.0/3.1 compliant and supports native 12V-2x6 power delivery to minimize reliance on adapter cables. This configuration offers top-tier performance for competitive gaming and AI inference, though its specialized case layout limits storage expansion and necessitates careful selection of liquid cooling components.
- Storage is limited to one 3.5-inch and one 2.5-inch drive bay
- Expansion capacity is restricted to 4 slots
- Reverse-connector motherboards are not supported in this chassis
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Useful next steps
AIO Cooling Requirement
The Phanteks EX5 case limits CPU air cooler height to 72mm; a 360mm AIO is necessary for effective thermal management of the Ryzen 7 9850X3D.
Verify PSU Connectivity
The RTX 5090 requires a 12V-2x6 connection; ensure the 1300W PSU is ATX 3.0/3.1 compliant with native cabling to avoid adapter-related failure risks.
Memory Optimization
Use a 2x16GB DDR5 memory kit verified for AMD EXPO compatibility to ensure system stability at the platform's native speed.