PC Build to Run Mistral Small 3.1 24B Locally (Q5_K_M)

作者： Jakub Rusinowski · 最后更新： 2026年7月10日

A complete parts list — GPU, motherboard, RAM and PSU — worked backward from Mistral Small 3.1 24B's VRAM requirement at Q5_K_M. Prices are 2026 street estimates and vary.

Requirements

GPU: AMD Radeon RX 7900 XT

AMD Radeon RX 7900 XT's 20 GB covers Mistral Small 3.1 24B at Q5_K_M (~18 GB needed), with headroom.

在亚马逊查看价格 — AMD Radeon RX 7900 XT 20GB

Motherboard: ASUS TUF Gaming B650-PLUS WIFI

B650 (AM5) — pairs with the AMD Ryzen 7 7700; DDR5, dual PCIe 4.0 x16 (x8/x8) for multi-GPU, 4 DIMM slots to 256 GB.

在亚马逊查看价格 — ASUS TUF Gaming B650-PLUS WIFI

RAM: Corsair Vengeance 32GB (2x16GB) DDR5-6000 C30 (AMD EXPO)

32 GB DDR5-6000 (2x16GB) meets Mistral Small 3.1 24B's 32 GB recommended system RAM.

在亚马逊查看价格 — Corsair Vengeance 32GB (2x16GB) DDR5-6000 C30

PSU: Corsair RM650e (ATX 3.1)

650 W 80+ Gold covers AMD Radeon RX 7900 XT (315 W) + CPU 65 W with 30% headroom (~494 W required).

在亚马逊查看价格 — Corsair RM650e (ATX 3.1)

Swap Alternatives

• GPU: AMD Radeon RX 7900 XTX — AMD Radeon RX 7900 XTX's 24 GB covers Mistral Small 3.1 24B at Q5_K_M (~18 GB needed), with headroom.
• GPU: NVIDIA GeForce RTX 3090 — NVIDIA GeForce RTX 3090's 24 GB covers Mistral Small 3.1 24B at Q5_K_M (~18 GB needed), with headroom.
• RAM: Corsair Vengeance 64GB (2x32GB) DDR5-6000 C30 (AMD EXPO) — More headroom: 64 GB DDR5-6000.
• PSU: Corsair RM850e (ATX 3.1) — More headroom / future dual-GPU: 850 W 80+ Gold.

FAQ

What GPU do I need to run Mistral Small 3.1 24B at Q5_K_M?

AMD Radeon RX 7900 XT's 20 GB covers Mistral Small 3.1 24B at Q5_K_M (~18 GB needed), with headroom.

How much VRAM does Mistral Small 3.1 24B need at Q5_K_M?

About 18 GB of VRAM plus 32 GB of system RAM.

What power supply does a AMD Radeon RX 7900 XT build need?

650 W 80+ Gold covers AMD Radeon RX 7900 XT (315 W) + CPU 65 W with 30% headroom (~494 W required).

How much does a Mistral Small 3.1 24B PC cost?

About $1,749 for a complete build (GPU, motherboard, RAM, PSU, CPU, case, SSD), at 2026 street-price estimates.

Mistral Small 3.1 24B at Other Quant Levels

• Mistral Small 3.1 24B at Q4_K_M
• Mistral Small 3.1 24B at Q8_0

Other Popular Build Targets

• Qwen 3 32B PC build
• Gemma 4 27B ⭐ PC build
• Kimi K2.6 PC build
• Qwen 3.7 35B-A3B PC build
• Gemma 4 31B PC build

Model & GPU

• Mistral Small 3.1 model page
• AMD Radeon RX 7900 XT review
• Can I run Mistral Small 3.1 on AMD Radeon RX 7900 XT?

More Ways to Build

• Budget-first build recommender
• Best GPU Buyer Guide 2026

← Budget-first build recommender | Mistral Small 3.1 model page | AMD Radeon RX 7900 XT review