PC build
Ryzen 7 5800X + RTX 3070 FTW3 Ultra High-End Gaming Build
This high-performance PC build centers on an AMD Ryzen 7 5800X and NVIDIA RTX 3070, offering strong 1440p gaming capabilities and productivity potential. W
Component prices & shopping links
0 recent in-stock offers · 2 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 5800X | Price not recorded yet. Check local retailers below.Confirm variant, stock, shipping and tax at checkout. |
| gpu | EVGA GeForce RTX 3070 FTW3 Ultra Gaming | Price not recorded yet. Check local retailers below.Confirm variant, stock, shipping and tax at checkout. |
| motherboard | MSI MAG B550 TOMAHAWK | $239.00 Last seenOct 12, 2026, 8:45 AM UTCOut of stock at the last check.Confirm variant, stock, shipping and tax at checkout. |
| ram | Corsair VENGEANCE LPX 16GB (2 x 8GB) DDR4 DRAM 3600MHz C18 Memory Kit - Black (CMK16GX4M2B3600C18) | Price not recorded yet. Check local retailers below.Confirm variant, stock, shipping and tax at checkout. |
| storage | Sabrent 1TB Rocket NVMe 4.0 Gen4 + Seagate 3TB HDD | Price not recorded yet. Check local retailers below.Confirm variant, stock, shipping and tax at checkout. |
| psu | EVGA SuperNOVA 750 GA 80 Plus Gold 750W Fully Modular Power Supply | Price not recorded yet. Check local retailers below.Confirm variant, stock, shipping and tax at checkout. |
| cooler | Noctua NH-D15 | $169.00 Last seenOct 12, 2026, 8:30 AM UTCCurrent price and stock need a new check.Confirm variant, stock, shipping and tax at checkout. |
What this build is good for
This high-performance PC build centers on an AMD Ryzen 7 5800X and NVIDIA RTX 3070, offering strong 1440p gaming capabilities and productivity potential. While the core components—Zen 3 architecture and Ampere-based graphics—are highly compatible for this workload, there are significant considerations regarding physical space and electrical reliability. The Noctua NH-D15 cooler provides excellent thermal management but requires a wide chassis and careful RAM height management to avoid clearance issues. Crucially, the chosen EVGA SuperNOVA GA power supply has documented stability issues with RTX 30-series GPUs, creating a potential risk of system crashes under load. Prospective builders should prioritize a higher-quality, more reliable power supply unit to ensure system stability. Overall, the system is a capable performer if these specific compatibility and reliability concerns are addressed before assembly.
- Potential power supply instability with GPU transients
- Large air cooler footprint may cause RAM or case side-panel conflicts
- Motherboard lacks integrated Wi-Fi support
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Useful next steps
Replace the power supply
The EVGA SuperNOVA GA series is known for instability when handling transient power spikes from RTX 30-series graphics cards. Replacing it with a high-quality alternative mitigates the risk of unexpected system shutdowns.
Verify chassis clearance
The Noctua NH-D15 stands 168mm tall. Ensure your specific PC case specifies a CPU cooler clearance of at least 168mm and that your RAM sticks are low-profile to prevent front fan obstruction.
Update BIOS
While B550 motherboards are generally compatible with Ryzen 5000 series, a BIOS update may be required for full stability and compatibility. Use the MSI Flash BIOS button if the board does not boot initially.