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Build a PC / AI & local models

$6,500 PC for local AI models, part by part

An Intel Core i9-14900K with the GeForce RTX 5090, and the 6 parts around them that fit it: $6,448 all in.

Language and image models on your own card. Every part here was checked against every other for fit, and picked for video memory first, then card speed, then system memory. Typical US prices read on 2026-09-09, not a live checkout total: no operating system, shipping, tax, screen, keyboard or mouse.

The Intel Core i9-14900K and the GeForce RTX 5090 are well matched at 1440p.

Change the budget or the job
91Fit for the job

Flagship

$6,448 of $6,500

Fractal Design TorrentRTX 50901200 W

Build order

Eight steps, the way a builder works through the case. $6,448 all in.

  1. MSI PRO B760-P WiFi DDR4 on the tray
  2. Core i9-14900K in the socket
  3. Arctic Liquid Freezer III Pro 360 on top
  4. 2 sticks of memory
  5. Samsung 9100 Pro 2TB on the board
  6. RTX 5090 in the x16 slot
  7. 1200 W supply in the basement
  8. Panel on, power on
PartScore for the jobTypical priceBuy
ProcessorIntel Core i9-14900K

Highest AI & local models score the budget allows next to this card: 24 cores, boosts to 6 GHz.

2 swaps that still fit
94
$470
Buy on Amazon
MotherboardMSI PRO B760-P WiFi DDR4

B760 board for the LGA1700 socket, DDR4, 3 M.2 slots, Wi-Fi.

2 swaps that still fit
54
$139
Buy on Amazon
MemoryCorsair Vengeance LPX 64GB (2x32GB) DDR4-3200 CL16 White

64 GB DDR4 at 3200 MT/s CL16; 64 GB or more is the floor for AI & local models.

55
$175
Buy on Amazon
Graphics cardGeForce RTX 5090

32 GB of video memory, index 100 at 1440p; tuned for video memory first, then card speed, then system memory.

2 swaps that still fit
100
$4,830
Buy on Amazon
CPU coolerArctic Liquid Freezer III Pro 360

Rated 330 W for a chip that turbos to 253 W.

3 swaps that still fit
96
$70
Buy on Amazon
Power supplyThermaltake Toughpower GF3 1200W

1200 W, 80 Plus gold; this build draws about 1100 W at full tilt, native 12V-2x6 cable.

92
$159
Buy on Amazon
CaseFractal Design Torrent

5 fans in the box, 4 is the least 828 W of parts needs behind a mesh front. Takes EATX/ATX/MATX/ITX boards and cards up to 461 mm.

2 swaps that still fit
92
$205
Buy on Amazon
StorageSamsung 9100 Pro 2TB

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

4 swaps that still fit
97
$400
Buy on Amazon
Total, typical prices8 parts$6,448

The same list, more or less money

$6,000 PC for local AI modelsWhat $500 less buys, and which parts change.$7,000 PC for local AI modelsWhat $500 more buys, and where it goes.

$6,500 spent on a different job

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