Can I Run Llama 4 on Apple M5?
Written by Jakub Rusinowski · Last updated July 12, 2026
No — Llama 4 Scout 17B at Q4_K_M needs 68.2 GB at 8K context (65.8 GB weights + 2.4 GB KV cache/overhead), and the Apple M5's 24 GB usable memory leaves it ~44.2 GB short. The cheapest card that runs it is the NVIDIA RTX PRO 5000 Blackwell (72 GB) (72 GB).
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Apple M5 Specs
| VRAM | 32 GB unified memory |
| Memory Bandwidth | 153 GB/s |
Llama 4 Scout 17B on the Apple M5: VRAM by quantization
| Quant | VRAM needed | Fits 32 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 220.4 GB | ✗ No | — | — |
| Q8_0 | 118.2 GB | ✗ No | — | — |
| Q6_K | 91.8 GB | ✗ No | — | — |
| Q5_K_M | 79.7 GB | ✗ No | — | — |
| Q4_K_M | 68.2 GB | ✗ No | — | — |
| Q3_K_M | 48.9 GB | ✗ No | — | — |
| Q2_K | 38.2 GB | ✗ No | — | — |
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 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 M5: 8K 68.2 GB ✗ · 32K 73.1 GB ✗ · 128K 92.4 GB ✗. Past 8K 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? Llama 4 Scout 17B on 48 GB of system RAM, CPU only: runs, but it is tight.
Why It Does Not Fit
Every Llama 4 variant requires more VRAM than the Apple M5 provides (32 GB).
Nearest GPU That Fits
NVIDIA RTX PRO 5000 Blackwell (72 GB) (72 GB VRAM).
Llama 4 needs ~68 GB but this GPU has 32 GB. Rent a A100 (80 GB)-class GPU by the hour instead of buying one:
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FAQ
Can I run Llama 4 on the Apple M5?
No — Llama 4 Scout 17B at Q4_K_M needs 68.2 GB at 8K context (65.8 GB weights + 2.4 GB KV cache/overhead), and the Apple M5's 24 GB usable memory leaves it ~44.2 GB short. The cheapest card that runs it is the NVIDIA RTX PRO 5000 Blackwell (72 GB) (72 GB).
What's the cheapest GPU that runs Llama 4?
The NVIDIA RTX PRO 5000 Blackwell (72 GB) (72 GB VRAM) is the cheapest upgrade that fits it.
Every Llama 4 size on the Apple M5
| Size | VRAM at 8K | Verdict | Speed |
|---|---|---|---|
| Llama 4 Maverick 17B | 243.9 GB | Does not fit | — |
| Llama 4 Scout 17B | 68.2 GB | Does not fit | — |
Llama 4 on Other GPUs
- Llama 4 on NVIDIA GeForce RTX 5090
- Llama 4 on Apple M4
- Llama 4 on Apple M2 Pro
- Llama 4 on Apple M1 Pro
- Llama 4 on Apple M3 Pro
Popular Models on the Apple M5
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? | Llama 4 Model Page | Apple M5 GPU Page | VRAM calculator | Check Your Hardware