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Build a PC / heavy gaming

$6,000 4K gaming PC, part by part

An AMD Ryzen 5 7600X3D with the GeForce RTX 5090, and the 6 parts around them that fit it: $6,000 all in.

One of the three heavy targets at a time, and the result says which: 4K high settings by default, with ray tracing or 240 Hz at 1440p as the alternatives the same class of card serves. Every part here was checked against every other for fit, and picked for the strongest graphics card the budget allows. Typical US prices read on 2026-09-09, not a live checkout total: no operating system, shipping, tax, screen, keyboard or mouse.

The AMD Ryzen 5 7600X3D and the GeForce RTX 5090 are well matched at 4K.

Change the budget or the job
88Fit for the job

Enthusiast

$6,000 of $6,000

Montech Air 903 MaxRTX 50901000 W

Build order

Eight steps, the way a builder works through the case. $6,000 all in.

  1. Gigabyte B650 Eagle AX on the tray
  2. Ryzen 5 7600X3D in the socket
  3. Thermalright Phantom Spirit 120 SE on top
  4. 2 sticks of memory
  5. Samsung 9100 Pro 2TB on the board
  6. RTX 5090 in the x16 slot
  7. 1000 W supply in the basement
  8. Panel on, power on
PartScore for the jobTypical priceBuy
ProcessorAMD Ryzen 5 7600X3D

Highest heavy gaming score the budget allows next to this card: 6 cores, boosts to 4.7 GHz.

2 swaps that still fit
75
$226
Buy on Amazon
MotherboardGigabyte B650 Eagle AX

B650 board for the AM5 socket, DDR5, 3 M.2 slots, Wi-Fi.

1 swap that still fit
62
$139
Buy on Amazon
MemoryCorsair Vengeance 48GB (2x24GB) DDR5-6000 CL30 White

48 GB DDR5 at 6000 MT/s CL30; 32 GB or more is the floor for heavy gaming.

84
$139
Buy on Amazon
Graphics cardGeForce RTX 5090

32 GB of video memory, index 100 at 4K; tuned for the strongest graphics card the budget allows.

2 swaps that still fit
100
$4,830
Buy on Amazon
CPU coolerThermalright Phantom Spirit 120 SE

Rated 260 W for a chip that turbos to 88 W.

1 swap that still fit
88
$36
Buy on Amazon
Power supplySuper Flower Leadex VII XG 1000W

1000 W, 80 Plus gold; this build draws about 950 W at full tilt, native 12V-2x6 cable.

2 swaps that still fit
92
$140
Buy on Amazon
CaseMontech Air 903 Max

4 fans in the box, 3 of them lit, 4 is the least 663 W of parts needs behind a mesh front. Takes EATX/ATX/MATX/ITX boards and cards up to 400 mm.

2 swaps that still fit
82
$90
Buy on Amazon
StorageSamsung 9100 Pro 2TB

2 TB PCIe 5.0 NVMe, 14,700 MB/s reads, with cache.

2 swaps that still fit
97
$400
Buy on Amazon
Total, typical prices8 parts$6,000

The same list, more or less money

$5,500 4K gaming PCWhat $500 less buys, and which parts change.$6,500 4K gaming PCWhat $500 more buys, and where it goes.

$6,000 spent on a different job

The same money buys a different machine when the work changes.