Best 4K Gaming PC Build Under $3,400
Updated August 17, 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 — $3386.92 all-in
- CPUAMD Ryzen 7 9850X3D8C/16T · 5.6 GHz boost · iGPU$484.00Amazon ↗Newegg ↗
- Graphics cardZOTAC Gaming GeForce RTX 5080 AMP Extreme Infinity DLSS 416GB VRAM$1645.00Amazon ↗
- MotherboardASUS TUF GAMING B850-E WIFIRAM ≤8000$198.99Amazon ↗Newegg ↗
- MemoryPatriot Viper VenomDDR5-6000 · CL36 · 2×16GB (32GB)$539.95Amazon ↗Newegg ↗
- StorageMicron 2500 1TB 7100 MB1TB · PCIe 4.0 NVMe$150.00Amazon ↗Newegg ↗
- Power supplyMSI MAG A750GL750W · ATX$89.99Amazon ↗Newegg ↗
- CaseNZXT H7 Flow RGB (2024)fits GPU ≤410mm · cooler ≤185mm$149.99Amazon ↗Newegg ↗
- CPU coolerCorsair Nautilus 360 RS ARGBAIO liquid · 360mm radiator$129.00Amazon ↗Newegg ↗
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