Command R+ 104B needs ~81.6 GB VRAM. MacBook Pro M4 Max 128GB has 92.2 GB. With Q4_K_M quantization, expect ~5 tok/s.
Operating mode
Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.
Current mode
Balanced
Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.
Select quantization to explore
Fit status
Tight fit
Decode
10.3 tok/s
TTFT
18805 ms
Safe context
66K
Memory
81.6 GB / 92.2 GB
The model fits in shared memory, but shared-memory bandwidth is now the real limiter.
Fit does not mean dedicated-VRAM speed
Unified or shared memory can make a model technically fit, but sustained tokens per second may still trail a discrete high-bandwidth GPU with less total memory.
Shared-memory contention still exists
The OS, browser, and inference runtime all compete for the same physical memory pool, so real-world headroom is less forgiving than raw capacity suggests.
Prioritize bandwidth, not only capacity
If this workload feels slow, the next useful step is often a GPU tier with materially faster memory bandwidth rather than only a small bump in capacity.
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | B | Tight fit | 10.3 tok/s | 10257 ms | 66K |
| Coding | B | Tight fit | 5.4 tok/s | 35706 ms | 66K |
| Agentic Coding | B | Tight fit | 10.3 tok/s | 27352 ms | 66K |
| Reasoning | B | Tight fit | 10.3 tok/s | 22224 ms | 66K |
| RAG | B | Tight fit | 10.3 tok/s | 34190 ms | 66K |
Inference speed
Estimated decode speed (tokens/sec) for Command R+ 104B at Q4_K_M across popular GPUs and Apple Silicon, including multi-GPU rigs, using the fastest local runtime per device. Fastest is MacBook Pro M4 Max 128GB at ~10 tok/s. Speed is memory-bandwidth bound, so cards that fit the whole model in VRAM run far faster than ones that offload to system RAM.
| GPU / Mac | Memory | Quant | Speed (tok/s) | Fits? |
|---|---|---|---|---|
MacBook Pro M4 Max 128GB | 128 GB | Q4_K_M | 10.3 | Tight |
How Command R+ 104B (104B params) fits at each quantization level on MacBook Pro M4 Max 128GB (92.2 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 40.6 GB | Low | B63 |
Q3_K_S | 3 | 51.0 GB | Low | B65 |
NVFP4 | 4 |
Copy-paste commands to run Command R+ 104B on your machine.
Run
ollama run command-r-plusUpgrade options
Raises estimated decode speed by about 872%.
Adds memory headroom for longer context windows and future model growth.
~$8,000 MSRP
RTX PRO 6000 Blackwell Workstation Edition 96GBBest valueRaises estimated decode speed by about 150%.
~$9,999 MSRP
Yes, MacBook Pro M4 Max 128GB can run Command R+ 104B with a B grade (Tight fit). Expected decode speed: 5.4 tok/s.
Command R+ 104B (104B parameters) requires approximately 81.6 GB of memory with Q4_K_M quantization.
The recommended quantization for Command R+ 104B is Q4_K_M, which balances quality and memory efficiency.
On MacBook Pro M4 Max 128GB, Command R+ 104B achieves approximately 5.4 tokens per second decode speed with a time-to-first-token of 35706ms using Q4_K_M quantization.
For coding workloads, Command R+ 104B on MacBook Pro M4 Max 128GB receives a B grade with 5.4 tok/s and 66K context.
On MacBook Pro M4 Max 128GB, Command R+ 104B can safely use up to 66K tokens of context. The model's official context limit is 131K, but available memory constrains the safe maximum.
Paste this snippet into any page to show a live fit card.
<iframe src="https://willitrunai.com/embed/command-r-plus-104b-on-m4-max-128gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
Preview:
| 256 GB |
| Q4_K_M |
| 9.5 |
| Fits |
Mac Studio M2 Ultra 128GB | 128 GB | Q4_K_M | 8.0 | Tight |
Mac Studio M1 Ultra 128GB | 128 GB | Q4_K_M | 7.5 | Tight |
2× RX 7900 XTX 24GB | 48 GB | Q4_K_M | 6.3 | Too big |
MacBook Pro M4 Max 64GB | 64 GB | Q4_K_M | 5.5 | Too big |
| 2× RTX 4090 24GB | 48 GB | Q4_K_M | 4.4 | Too big |
| 2× RTX 3090 24GB | 48 GB | Q4_K_M | 3.8 | Too big |
| 4× RTX 3060 12GB | 48 GB | Q4_K_M | 3.3 | Too big |
MacBook Pro M4 Pro 48GB | 48 GB | Q4_K_M | 2.9 | Too big |
MacBook Pro M3 Max 64GB | 64 GB | Q4_K_M | 2.2 | Too big |
| RTX 5090 32GB | 32 GB | Q4_K_M | 2.0 | Too big |
| RTX 4090 24GB | 24 GB | Q4_K_M | 2.0 | Too big |
| RTX 4080 Super 16GB | 16 GB | Q4_K_M | 2.0 | Too big |
| RTX 3090 24GB | 24 GB | Q4_K_M | 2.0 | Too big |
| RTX 4070 12GB | 12 GB | Q4_K_M | 2.0 | Too big |
| RTX 3060 12GB | 12 GB | Q4_K_M | 2.0 | Too big |
| RTX 4060 8GB | 8 GB | Q4_K_M | 2.0 | Too big |
RX 7900 XTX 24GB | 24 GB | Q4_K_M | 2.0 | Too big |
MacBook Pro M1 Max 64GB | 64 GB | Q4_K_M | 2.0 | Too big |
Estimates for single-stream decoding at Q4_K_M; real tokens/sec varies with prompt length, context, batch size, and runtime build. Prompt processing (prefill) is faster than the decode figures shown here.
58.2 GB |
| Medium |
| B65 |
Q4_K_M | 4 | 63.4 GB | Medium | B65 |
Q5_K_MBest for your GPU | 5 | 74.9 GB | High | B65 |
Q6_K | 6 | 85.3 GB | High | F0 |
Q8_0 | 8 | 111.3 GB | Very High | F0 |
F16 | 16 | 213.2 GB | Maximum | F0 |
Prioritize bandwidth, not only capacity. If this workload feels slow, the next useful step is often a GPU tier with materially faster memory bandwidth rather than only a small bump in capacity.
Not always. MacBook Pro M4 Max 128GB can often fit larger models thanks to unified memory, but a discrete GPU with dedicated high-bandwidth VRAM may still decode faster once the model fits. For this combination, the important distinction is capacity versus sustained throughput.