Best 4K Gaming PC Build Under $3,400
Updated September 28, 2026 · every part compatibility-checked, priced from live Amazon/Newegg listings, and chosen to land at or under $3,400. Prices move daily. The total below is live.
A 4K flagship that spends where 4K actually demands it — GPU first, with a platform that will carry the next upgrade too.
The parts: $3283.75 all-in
- CPUAMD Ryzen 7 9850X3D8C/16T · 5.6 GHz boost · iGPU$499.00Amazon ↗Newegg ↗
- Graphics cardMSI RTX 5080 SHADOW 3X OC16GB VRAM · 303mm long$1579.99Amazon ↗Newegg ↗
- MotherboardMSI MAG B850 TOMAHAWK MAX WIFIRAM ≤8400$209.99Amazon ↗Newegg ↗
- MemoryPatriot Viper VenomDDR5-6000 · CL36 · 2×16GB (32GB)$509.89Amazon ↗Newegg ↗
- StorageMicron 2500 1TB 7100 MB1TB · PCIe 4.0 NVMe$150.00Amazon ↗Newegg ↗
- Power supplyMontech Century II850W · ATX$89.90Amazon ↗Newegg ↗
- CaseFractal Design Meshify 3fits GPU ≤349mm · cooler ≤173mm$154.99Amazon ↗Newegg ↗
- CPU coolerCoolerMaster MasterLiquid ML240L RGB V2, Close-LoopAIO liquid$89.99Amazon ↗
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