Build recipes: goal to exact buy list

Pick a goal. Each recipe lists every part with a dated price, checks the PSU, case and slots, and estimates speed. Want to change a part? Open it in the planner. Weighing two or three? Compare builds side by side.

Prices: Corsair store (PSUs, cases, RAM) and Newegg (CPUs, boards, SSDs) on 2026-10-23, GPUs at list price unless marked used. DDR5 prices are unusually high right now, and they dominate several totals.

Build recipes: goal to exact buy list

Dual used RTX 3090 build (48 GB) for 32B to 70B models

Cheapest PC build that runs Qwen3.8-27B at Q4

Mac Studio M5 Ultra vs. dual RTX 3090 for local LLMs

Budget 24 GB VRAM build

16 GB starter build (RTX 4060 Ti 16GB)

Cheapest 12 GB build: used RTX 3060

RTX 5090 single-GPU build (32 GB)

RTX 4090 build for 24 GB models

New-parts budget build: RTX 5070 12GB

Dual RX 7900 XTX build (48 GB VRAM)

Local coding agent build (Qwen3-Coder-30B-A3B)

What runs gpt-oss-120b locally: Framework Desktop 128GB

DGX Spark vs. Framework Desktop for local AI

Quiet starter: Mac mini M6 32GB

Two used RTX 3060 12GB cards for 24 GB

New models, and what they need to run