Qwen3-4B: What PC You Need
Qwen3-4B needs about 4.8GB at Q4; the cheapest PC that runs it comfortably is GMKtec K8 Plus at $749.99.
Updated
What Qwen3-4B asks of a PC
Qwen3-4B has 4B parameters, all of them active, so its memory need scales directly with that count and the quantization you pick.
At 8K context Qwen3-4B takes 4.8GB at Q4, 5.8GB at Q6 and 6.9GB at Q8. Stepping from Q4 to Q8 costs 2.1GB.
Qwen3-4B accepts up to 32,768 tokens of context, and a long context adds memory: at 128K and Q4 it takes 34.8GB.
56 tracked PCs with a verified price run Qwen3-4B comfortably and 0 run it with limits. The cheapest comfortable option by type is laptop: ASUS Zenbook A14 (Snapdragon X) at $832; mini PC: GMKtec K8 Plus at $749.99; desktop: Framework Desktop (Ryzen AI Max 385) at $1,269; workstation: Lenovo ThinkStation P3 Ultra (RTX PRO 4500) at $2,029.99.
Memory requirements for Qwen3-4B
| Quantization | 8K context | 32K context | 128K context |
|---|---|---|---|
| Q4 | 4.8GB | 10.8GB | 34.8GB |
| Q5 | 5.3GB | 11.3GB | 35.3GB |
| Q6 | 5.8GB | 11.8GB | 35.8GB |
| Q8 | 6.9GB | 12.9GB | 36.9GB |
- Parameters
- 4B
- Context window
- 32,768
- Source
- Model card
Best PC for Qwen3-4B
Lenovo ThinkStation PGX: the highest AIPC Score among the PCs that run it comfortably, at $5,859.
Cheapest PCs that run Qwen3-4B comfortably
| # | System | Type | AI Memory | GPU/NPU | AI Score | Price | Verified | View |
|---|---|---|---|---|---|---|---|---|
| 1 |  GMKtec K8 Plus | Mini PC | 8GB | Radeon 780M | 10 | $749.99 | View Deal on Amazon → | |
| 2 |  Apple Mac mini (M6) | Mini PC | 12GB | Apple M6 GPU | 16.1 | $779 | View Deal on Amazon → | |
| 3 |  ASUS Zenbook A14 (Snapdragon X) | Laptop | 8GB | Adreno | 9 | $832 | View Deal on Amazon → | |
| 4 |  Minisforum UM890 Pro | Mini PC | 16GB | Radeon 780M | 17.3 | $1,015 | View Deal on Amazon → | |
| 5 |  Minisforum MS-01 Workstation | Mini PC | 16GB | Intel Iris Xe | 18.4 | $1,039 | View Deal on Amazon → |
Cheapest PCs that run Qwen3-4B with limitations
None we track with a verified price.