Can I Run Qwen 3.5 on Apple M4?
Written by Jakub Rusinowski · Last updated July 12, 2026
Yes, but it's tight — Qwen 3.5 35B-A3B at Q4_K_M needs 23.8 GB at 8K context (21.1 GB weights + 2.7 GB KV cache/overhead), leaving ~0.2 GB of the Apple M4's 24 GB usable memory, at ~22 tok/s (est.), with room for up to 8K context.
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Apple M4 Specs
| VRAM | 32 GB unified memory |
| Memory Bandwidth | 120 GB/s |
Qwen 3.5 35B-A3B on the Apple M4: VRAM by quantization
| Quant | VRAM needed | Fits 32 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 72.7 GB | ✗ No | — | — |
| Q8_0 | 39.9 GB | ✗ No | — | Build for this |
| Q6_K | 31.4 GB | ✗ No | — | — |
| Q5_K_M | 27.5 GB | ✗ No | — | Build for this |
| Q4_K_M | 23.8 GB | ✓ Yes | 8K | Build for this |
| Q3_K_M | 17.6 GB | ✓ Yes | 32K | — |
| Q2_K | 14.2 GB | ✓ Yes | 32K | — |
Assumes an 8K-token context with an f16 KV cache, on an estimated architecture — this model publishes no config we can read. A longer window needs more; a quantized KV cache needs less. “Max context” is the largest window that still fits in 32 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 M4: 8K 23.8 GB · 32K 29.4 GB ✗ · 128K 52 GB ✗. Past 32K it no longer fits 32 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
No compatible GPU? Qwen 3.5 35B-A3B on 32 GB of system RAM, CPU only: runs, but it is tight.
Qwen 3.5 Sizes That Fit the Apple M4 (at 8K context)
| Qwen 3.5 35B-A3B | Q4_K_M · 23.8 GB at 8K context · ~22 tok/s (est.) |
| Qwen 3.5 27B | Q4_K_M · 18.8 GB at 8K context · ~4 tok/s (est.) |
| Qwen 3.5 9B | Q4_K_M · 6.5 GB at 8K context · ~11 tok/s (est.) |
| Qwen 3.5 4B | Q4_K_M · 3.5 GB at 8K context · ~24 tok/s (est.) |
| Qwen 3.5 2B | Q4_K_M · 2.7 GB at 8K context · ~37 tok/s (est.) |
| Qwen 3.5 0.8B | Q4_K_M · 1.8 GB at 8K context · ~69 tok/s (est.) |
Qwen 3.5 needs ~24 GB but this GPU has 32 GB. Rent a RTX 4090 (24 GB)-class GPU by the hour instead of buying one:
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FAQ
Qwen 3.5 on the Apple M4 — does it fit?
Yes, but it's tight — Qwen 3.5 35B-A3B at Q4_K_M needs 23.8 GB at 8K context (21.1 GB weights + 2.7 GB KV cache/overhead), leaving ~0.2 GB of the Apple M4's 24 GB usable memory, at ~22 tok/s (est.), with room for up to 8K context.
Which Qwen 3.5 variant fits best on the Apple M4?
Qwen 3.5 35B-A3B at Q4_K_M quantization needs 23.8 GB at 8K context (21.1 GB weights + 2.7 GB KV cache/overhead), estimated ~22 tokens/sec, up to 8K context.
Every Qwen 3.5 size on the Apple M4
| Size | VRAM at 8K | Verdict | Speed |
|---|---|---|---|
| Qwen 3.5 397B-A17B | 139 GB | Does not fit | — |
| Qwen 3.5 122B-A10B | 77.3 GB | Does not fit | — |
| Qwen 3.5 35B-A3B | 23.8 GB | Runs | ~22 tok/s |
| Qwen 3.5 27B | 18.8 GB | Runs | ~4 tok/s |
| Qwen 3.5 9B | 6.5 GB | Runs | ~11 tok/s |
| Qwen 3.5 4B | 3.5 GB | Runs | ~24 tok/s |
| Qwen 3.5 2B | 2.7 GB | Runs | ~37 tok/s |
| Qwen 3.5 0.8B | 1.8 GB | Runs | ~69 tok/s |
Qwen 3.5 on Other GPUs
- Qwen 3.5 on NVIDIA GeForce RTX 5090
- Qwen 3.5 on Apple M2 Pro
- Qwen 3.5 on Apple M1 Pro
- Qwen 3.5 on Apple M5
- Qwen 3.5 on Apple M3 Pro
Popular Models on the Apple M4
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
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