Can I Run Command R+ (104B) on Apple M5 Max?
Written by Jakub Rusinowski · Last updated September 29, 2026
Yes. Command R+ (104B) needs 65.7 GB at 8K context (62.8 GB weights + 2.9 GB KV cache/overhead) at Q4_K_M and the Apple M5 Max has 96 GB usable, leaving about 30.3 GB of headroom, at roughly 5 tok/s (estimated) with room for up to 64K of context.
See what else this hardware can run →
The numbers
| Model | Command R+ (104B) |
| Parameters | 104B |
| Quantization | Q4_K_M |
| VRAM needed (8K context) | 65.7 GB |
| Apple M5 Max usable memory | 96 GB |
| Verdict | Runs |
| Max context | 64K |
| Estimated speed | ~5 tok/s |
Command R+ (104B) on the Apple M5 Max: VRAM by quantization
| Quant | VRAM needed | Fits 128 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 210.9 GB | ✗ No | — | — |
| Q8_0 | 113.4 GB | ✗ No | — | — |
| Q6_K | 88.2 GB | ✓ Yes | 32K | — |
| Q5_K_M | 76.7 GB | ✓ Yes | 64K | — |
| Q4_K_M | 65.7 GB | ✓ Yes | 64K | — |
| Q3_K_M | 47.3 GB | ✓ Yes | 64K | — |
| Q2_K | 37.1 GB | ✓ Yes | 64K | — |
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 128 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 Max: 8K 65.7 GB · 32K 72.2 GB · 125K 97.1 GB ✗. Past 125K it no longer fits 128 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
What to do next
Nothing to change — run it at Q4_K_M. If you want more capability, check whether the next size up also fits.
No compatible GPU? Command R+ (104B) on 256 GB of system RAM, CPU only: runs, but too slowly to be worth it.
Running Command R+ (104B) on this card:
Command R+ (104B) needs ~66 GB but this GPU has 128 GB. Rent a A100 (80 GB)-class GPU by the hour instead of buying one:
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Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.
Other Command R Family sizes on the Apple M5 Max
- Command R (35B) — runs (32.7 GB)
Command R+ (104B) on nearby hardware
- NVIDIA RTX PRO 6000 Blackwell (96 GB) — runs
All Command R Family sizes on the Apple M5 Max | Command R+ (104B) model page | Apple M5 Max GPU page | VRAM calculator | Check your hardware