PC build

Ryzen 9800X3D RTX 5090 Gaming Beast

This high-performance system features an AMD Ryzen 7 9800X3D and NVIDIA GeForce RTX 5090, positioning it at the peak of current gaming hardware. Designed p

4 identified componentsSource-backed researchShopping in Australia

Component prices & shopping links

Recorded component subtotal · AUD$599.00

1/4 prices recorded

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.

Prices update in the background. Observed prices remain available.

Not yet identified: motherboard, storage, case, cooler. Confirm these parts before purchasing.

Part	Component	AUD price & shopping
cpu	AMD Ryzen 7 9800X3D	$599.00 Last seenOct 24, 2026, 2:30 PM UTCCurrent price and stock need a new check. View at PC Case Gear ↗Find at PC Case Gear ↗Find at PLE Computers ↗ Confirm variant, stock, shipping and tax at checkout.
gpu	Gigabyte GeForce RTX 5090 GAMING OC 32G	Price not recorded yet. Check local retailers below. Find at PC Case Gear ↗Find at PLE Computers ↗ Confirm variant, stock, shipping and tax at checkout.
ram	DDR5-6000 CL36 RAM	Price not recorded yet. Check local retailers below. Find at PC Case Gear ↗Find at PLE Computers ↗ Confirm variant, stock, shipping and tax at checkout.
psu	Corsair HX Series HX1200	Price not recorded yet. Check local retailers below. Find at PC Case Gear ↗Find at PLE Computers ↗ Confirm variant, stock, shipping and tax at checkout.

What this build is good for

This high-performance system features an AMD Ryzen 7 9800X3D and NVIDIA GeForce RTX 5090, positioning it at the peak of current gaming hardware. Designed primarily for 4K gaming and high-demand compute tasks, the build requires careful attention to power delivery and physical constraints. The success of this configuration relies on utilizing a power supply with native 12V-2x6 support to safely power the high-draw GPU without relying on adapters. Additionally, while the selected RAM will function, optimizing for tighter CL30 timings will better align with the performance characteristics of the Zen 5 architecture. The build is highly capable, provided the power supply and case chassis are verified for compatibility with the massive RTX 5090 footprint and modern power standards.

High-end 4K gamingEveryday productivityContent creation

What still needs confirmation

Unknown PSU revision (legacy vs. ATX 3.x)
Unknown chassis dimensions for GPU fitment

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Useful next steps

high priority

Verify PSU ATX 3.0/3.1 Compliance

Confirm if your Corsair HX1200 is an ATX 3.0/3.1 variant. Older units lack the native 12V-2x6 cable required for the RTX 5090, necessitating risky adapters.

low priority

Optimize RAM Latency

DDR5-6000 CL30 is considered the optimal balance of frequency and latency for the AMD Ryzen 9000-series processors.