PC build
Reference AMD Ryzen 7 7800X3D Build
This build leverages the AMD Ryzen 7 7800X3D, widely regarded for its exceptional gaming performance, paired with an RTX 4070 to create a highly capable sy
Component prices & shopping links
0 recent in-stock offers · 3 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 7800X3D | $609.00 Last seenOct 15, 2026, 12:35 PM UTCCurrent price and stock need a new check.Confirm variant, stock, shipping and tax at checkout. |
| gpu | ASUS Dual GeForce RTX 4070 12GB | Price not recorded yet. Check local retailers below.Confirm variant, stock, shipping and tax at checkout. |
| motherboard | MSI MAG B650 Tomahawk WiFi | Price not recorded yet. Check local retailers below.Confirm variant, stock, shipping and tax at checkout. |
| ram | Corsair Vengeance 32GB (2x16GB) DDR5-6000 | Price not recorded yet. Check local retailers below.Confirm variant, stock, shipping and tax at checkout. |
| storage | Samsung 990 Pro 2TB | Price not recorded yet. Check local retailers below.Confirm variant, stock, shipping and tax at checkout. |
| psu | Corsair RM750e 750W | $169.00 Last seenOct 12, 2026, 4:03 AM UTCCurrent price and stock need a new check.Confirm variant, stock, shipping and tax at checkout. |
| case | Fractal Design North | Price not recorded yet. Check local retailers below.Confirm variant, stock, shipping and tax at checkout. |
| cooler | Noctua NH-U12A | $199.00 Last seenOct 15, 2026, 7:05 AM UTCCurrent price and stock need a new check.Confirm variant, stock, shipping and tax at checkout. |
What this build is good for
This build leverages the AMD Ryzen 7 7800X3D, widely regarded for its exceptional gaming performance, paired with an RTX 4070 to create a highly capable system for 1440p and 4K gaming. The MSI MAG B650 Tomahawk WiFi serves as a reliable foundation, while the Noctua NH-U12A provides efficient, quiet cooling within the airflow-focused Fractal Design North case. The selection of DDR5-6000 memory aligns with the optimal performance profile for Zen 4 processors, and the Samsung 990 Pro ensures rapid storage speeds. The Corsair RM750e offers sufficient headroom for these components, featuring modern power standards. To achieve peak performance and stability, users must ensure the motherboard BIOS is current and that the AMD EXPO memory profile is activated. This configuration is well-optimized for gaming enthusiasts, though users should prepare for future GPU power requirements if planning significant upgrades, and always verify specific BIOS versions for CPU microcode compatibility.
- Out-of-box BIOS version is unknown and may require an update to support the CPU correctly.
- Future high-wattage GPU upgrades might exceed the capacity of the 750W power supply.
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Useful next steps
Update BIOS
Essential for optimal AM5 CPU compatibility, system stability, and security patches.
Enable AMD EXPO
Required to ensure memory operates at its rated 6000MT/s; otherwise, it defaults to slower JEDEC speeds.
GPU Power Connection
Use the direct 12V-2x6/12VHPWR cable from the PSU to the GPU if available, avoiding daisy-chaining multiple PCIe connectors.