Can I Run Qwen3.8 on Apple M1?
Written by Jakub Rusinowski · Last updated September 11, 2026
No — Qwen3.8 27B at Q4_K_M needs 18.3 GB at 8K context (16.8 GB weights + 1.5 GB KV cache/overhead), and the Apple M1's 12 GB usable memory leaves it ~6.3 GB short. The cheapest card that runs it is the AMD Radeon RX 7900 XT (20 GB).
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Apple M1 Specs
| VRAM | 16 GB unified memory |
| Memory Bandwidth | 68 GB/s |
Qwen3.8 27B on the Apple M1: VRAM by quantization
| Quant | VRAM needed | Fits 16 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 57.1 GB | ✗ No | — | — |
| Q8_0 | 31 GB | ✗ No | — | Build for this |
| Q6_K | 24.3 GB | ✗ No | — | — |
| Q5_K_M | 21.2 GB | ✗ No | — | Build for this |
| Q4_K_M | 18.3 GB | ✗ No | — | Build for this |
| Q3_K_M | 13.3 GB | ✗ No | — | — |
| Q2_K | 10.6 GB | ✓ Yes | 16K | — |
Assumes an 8K-token context with an f16 KV cache. A longer window needs more; a quantized KV cache needs less. “Max context” is the largest window that still fits in 16 GB of unified memory. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.
Context costs VRAM too. At Q4_K_M on the Apple M1: 8K 18.3 GB ✗ · 32K 19.9 GB ✗ · 128K 26.3 GB ✗. Past 8K it no longer fits 16 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
No compatible GPU? Qwen3.8 27B on 16 GB of system RAM, CPU only: runs.
Why It Does Not Fit
Every Qwen3.8 variant requires more VRAM than the Apple M1 provides (16 GB).
Nearest GPU That Fits
AMD Radeon RX 7900 XT (20 GB VRAM).
Qwen3.8 needs ~18 GB but this GPU has 16 GB. Rent a RTX 4090 (24 GB)-class GPU by the hour instead of buying one:
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FAQ
Can I run Qwen3.8 on the Apple M1?
No — Qwen3.8 27B at Q4_K_M needs 18.3 GB at 8K context (16.8 GB weights + 1.5 GB KV cache/overhead), and the Apple M1's 12 GB usable memory leaves it ~6.3 GB short. The cheapest card that runs it is the AMD Radeon RX 7900 XT (20 GB).
What's the cheapest GPU that runs Qwen3.8?
The AMD Radeon RX 7900 XT (20 GB VRAM) is the cheapest upgrade that fits it.
Every Qwen3.8 size on the Apple M1
| Size | VRAM at 8K | Verdict | Speed |
|---|---|---|---|
| Qwen3.8-Max | 1457.5 GB | Does not fit | — |
| Qwen3.8-Flash-Next | 109.7 GB | Does not fit | — |
| Qwen3.8 27B | 18.3 GB | Runs at Q2_K | — |
Qwen3.8 on Other GPUs
- Qwen3.8 on NVIDIA GeForce RTX 5080
- Qwen3.8 on NVIDIA GeForce RTX 5070 Ti
- Qwen3.8 on NVIDIA GeForce RTX 5060 Ti 16GB
- Qwen3.8 on NVIDIA GeForce RTX 4080 Super
- Qwen3.8 on NVIDIA GeForce RTX 4080
Popular Models on the Apple M1
VRAM Tier
Troubleshooting
- Ollama: "model requires more system memory than is available"
- Which GGUF quant should I download? (Q4 vs Q5 vs Q8)
Buying Guide
← Can I Run It? | Qwen3.8 Model Page | Apple M1 GPU Page | VRAM calculator | Check Your Hardware