Hardware profile
Current generationMacBook Pro M5 Pro · 24 GB
24 GB unified memory · 307 GB/s · verified
Current-generation Apple silicon configuration with 307 GB/s memory bandwidth. Unified memory is shared by the CPU, GPU, operating system, and applications.
Recommended quantization by model
This table chooses the highest-quality published quantization that still clears the selected 8K context estimate. It does not compare output quality or claim that every backend has the same kernels.
| Model | Recommended quantization | Estimated requirement | Context ceiling | Result |
|---|---|---|---|---|
| Flint 40B | UD-IQ3_XXS | 16.3 GB at 8K | 262,144 tokens | Comfortable fit |
| NVIDIA Nemotron 3.5 Bolt E4B | Q4_K_M | 8.0 GB at 8K | 65,536 tokens | Comfortable fit |
| LFM3-1.7B | Q8_0 | 3.4 GB at 8K | 262,144 tokens | Comfortable fit |
| Bonsai 2 | PQ2_0 | 9.2 GB at 8K | 233,352 tokens | Comfortable fit |
| Qwen3.8 27B | Q4_K_M | 19.4 GB at 8K | 77,937 tokens | Comfortable fit |
| Gemma 4 12B Unified | Q8_0 | 14.7 GB at 8K | 196,408 tokens | Comfortable fit |
| Gemma 4 E4B | Q8_0 | 11.0 GB at 8K | 131,072 tokens | Comfortable fit |
| gpt-oss-20b | MXFP4 | 13.8 GB at 8K | 131,072 tokens | Comfortable fit |
| Qwen3 8B | Q8_0 | 11.6 GB at 8K | 32,768 tokens | Comfortable fit |
| DeepSeek R1 8B | Q8_0 | 11.1 GB at 8K | 106,815 tokens | Comfortable fit |
| Llama 3.2 3B | Q8_0 | 5.8 GB at 8K | 131,072 tokens | Comfortable fit |
| Phi-4 Mini | Q8_0 | 6.7 GB at 8K | 131,072 tokens | Comfortable fit |
| Mistral 7B | Q8_0 | 10.3 GB at 8K | 32,768 tokens | Comfortable fit |
| Gemma 3 4B | Q8_0 | 7.6 GB at 8K | 125,655 tokens | Comfortable fit |
| Gemma 4 31B | Q4_K_M | 22.2 GB at 8K | 20,759 tokens | Tight fit |
| Qwen3.6 35B-A3B | MXFP4 | 24.3 GB at 8K | 0 tokens | Won't fit |
| gpt-oss-120b | MXFP4 | 65.2 GB at 8K | 0 tokens | Won't fit |
Per-quantization fit for recent models
These are the five most relevant non-server models plus the next current model in the catalog. Each row uses the same 8K formula, so changing a quantization or context length produces an arithmetic result rather than a new benchmark claim.
| Model | Quantization | Weight files | 8K requirement | Result | 8K context ceiling | Speed band | Ollama |
|---|---|---|---|---|---|---|---|
| Flint 40B | UD-IQ1_M | 11.35 GB | 13.1 GB | Comfortable fit | 262,144 tokens | Estimate · Very fast relative band | No verified tag |
| Flint 40B | UD-IQ2_XXS | 11.86 GB | 13.6 GB | Comfortable fit | 262,144 tokens | Estimate · Very fast relative band | No verified tag |
| Flint 40B | UD-Q2_K_XL | 13.56 GB | 15.3 GB | Comfortable fit | 262,144 tokens | Estimate · Very fast relative band | No verified tag |
| Flint 40B | UD-IQ3_XXS | 14.54 GB | 16.3 GB | Comfortable fit | 262,144 tokens | Estimate · Very fast relative band | No verified tag |
| Flint 40B | UD-Q3_K_XL | 18.49 GB | 20.2 GB | Tight fit | 139,672 tokens | Estimate · Very fast relative band | No verified tag |
| Flint 40B | NVFP4 | 22.86 GB | 24.6 GB | Won't fit | 0 tokens | Estimate · Very fast relative band | ollama run flint:40b |
| Flint 40B | UD-Q4_K_XL | 25.05 GB | 26.8 GB | Won't fit | 0 tokens | Estimate · Very fast relative band | No verified tag |
| Flint 40B | UD-Q5_K_XL | 29.92 GB | 31.7 GB | Won't fit | 0 tokens | Estimate · Very fast relative band | No verified tag |
| Flint 40B | UD-Q6_K_XL | 36.32 GB | 38.1 GB | Won't fit | 0 tokens | Estimate · Very fast relative band | No verified tag |
| Flint 40B | Q8_0 | 42.30 GB | 44.0 GB | Won't fit | 0 tokens | Estimate · Very fast relative band | No verified tag |
| NVIDIA Nemotron 3.5 Bolt E4B | Q4_K_M | 6.18 GB | 8.0 GB | Comfortable fit | 65,536 tokens | Estimate · Fast relative band | ollama run nemotron-3.5-bolt:e4b |
| LFM3-1.7B | QAD-Q4_0 | 1.05 GB | 2.7 GB | Comfortable fit | 262,144 tokens | Estimate · Very fast relative band | ollama run lfm3:1.7b-qad-q4_0 |
| LFM3-1.7B | Q4_K_M | 1.10 GB | 2.7 GB | Comfortable fit | 262,144 tokens | Estimate · Very fast relative band | ollama run lfm3:1.7b-q4_K_M |
| LFM3-1.7B | Q5_K_M | 1.26 GB | 2.9 GB | Comfortable fit | 262,144 tokens | Estimate · Very fast relative band | No verified tag |
| LFM3-1.7B | Q6_K | 1.43 GB | 3.0 GB | Comfortable fit | 262,144 tokens | Estimate · Very fast relative band | No verified tag |
| LFM3-1.7B | Q8_0 | 1.85 GB | 3.4 GB | Comfortable fit | 262,144 tokens | Estimate · Very fast relative band | ollama run lfm3:1.7b-q8_0 |
| Bonsai 2 | PTQ1_0 | 5.95 GB | 8.0 GB | Comfortable fit | 252,570 tokens | Estimate · Slow relative band | No verified tag |
| Bonsai 2 | PQ2_0 | 7.21 GB | 9.2 GB | Comfortable fit | 233,352 tokens | Estimate · Slow relative band | No verified tag |
| Bonsai 2 | Q2_0 | 7.63 GB | 9.7 GB | Comfortable fit | 226,946 tokens | Estimate · Slow relative band | ollama run bonsai-2:27b-q2_0 |
| Qwen3.8 27B | Q4_K_M | 17.39 GB | 19.4 GB | Comfortable fit | 77,937 tokens | Estimate · Slow relative band | ollama run qwen3.8:27b-q4_K_M |
| Qwen3.8 27B | Q8_0 | 29.98 GB | 32.0 GB | Won't fit | 0 tokens | Estimate · Slow relative band | ollama run qwen3.8:27b-q8_0 |
| Gemma 4 12B Unified | Q4_0 | 7.15 GB | 9.1 GB | Comfortable fit | 262,144 tokens | Estimate · Moderate relative band | ollama run gemma4:12b-it-qat |
| Gemma 4 12B Unified | Q4_K_M | 7.30 GB | 9.2 GB | Comfortable fit | 262,144 tokens | Estimate · Moderate relative band | ollama run gemma4:12b-it-q4_K_M |
| Gemma 4 12B Unified | Q8_0 | 12.85 GB | 14.7 GB | Comfortable fit | 196,408 tokens | Estimate · Moderate relative band | ollama run gemma4:12b-it-q8_0 |
Speed bands are relative heuristics, not measured tokens per second. Verify the package name, license, backend support, and free memory before relying on a result.
Why this memory result is not a guarantee
MacBook Pro M5 Pro · 24 GB has 24 GB of unified memory. The formula subtracts weight files, KV cache, and 1.5 GB of runtime overhead, then requires 20% remaining headroom for a comfortable result. Driver reservations, display buffers, other applications, longer prompts, concurrent requests, and backend-specific workspace can all reduce the usable budget.
Low-cost setup upgrades
Useful accessories around MacBook Pro M5 Pro · 24 GB
These optional setup upgrades address storage, cooling, or power resilience. None increases GPU or unified-memory capacity.
Mac mini dock or stand with an NVMe slot
Adds storage and front-facing ports without buying a larger internal drive. Verify the Mac model, Thunderbolt version, and power-delivery limits before ordering.
Search current listings on AmazonExternal NVMe SSD for model storage
Keeps large GGUF and MLX files off the boot drive. Fast storage reduces load time, but it does not increase the memory available for inference.
Search current listings on AmazonThunderbolt or USB4 NVMe enclosure
A reusable enclosure lets you choose the drive capacity separately. Confirm the host supports the advertised Thunderbolt or USB4 generation.
Search current listings on AmazonAs an Amazon Associate I earn from qualifying purchases. Links are sponsored search links and do not change the price you pay. Affiliate disclosure.
Specific model checks
No curated can-i-run page is published for this hardware profile yet.
Compare current hardware
The closest current-generation profiles by memory capacity are below. A higher tier can increase the context ceiling or make a larger quantization comfortable, but it does not automatically guarantee faster generation.
Sources and verification
Data reviewed . Check the linked vendor material for the exact configuration before buying or installing.
FAQ
Questions about MacBook Pro M5 Pro · 24 GB.
How much unified memory does MacBook Pro M5 Pro · 24 GB provide for local AI?
MacBook Pro M5 Pro · 24 GB is listed with 24 GB of unified memory and 307 GB/s of memory bandwidth. The operating system, display buffers, and other applications share that capacity, so the model budget is always lower than the bare hardware number.
Which current local models fit comfortably on MacBook Pro M5 Pro · 24 GB?
Flint 40B, NVIDIA Nemotron 3.5 Bolt E4B, LFM3-1.7B. Comfortable means the 8K estimate leaves at least 20% headroom after weights, KV cache, and runtime overhead. A larger or higher-quality quantization may move an individual result into the tight band.
What context length can Flint 40B at UD-IQ3_XXS use on this machine?
At the selected quantization, the formula reaches 262,144 tokens before the machine's 24 GB capacity is exhausted. The model's native context limit still caps the result, and real workloads may run out earlier because of fragmentation, other applications, or backend workspace.
Is the 307 GB/s bandwidth figure a measured token speed?
No. Very fast relative band is a relative estimate based on active parameters and memory bandwidth. It is not a benchmark: backend kernels, batch size, thermals, CPU offload, and concurrent work can change real generation speed substantially.
What should I do if a model does not fit on MacBook Pro M5 Pro · 24 GB?
Try a lower-bit published quantization and a shorter context first. If the minimum requirement still exceeds 24 GB, the arithmetic gap to a 20% comfort target is about 5.1 GB. The next same-family current profile in this catalog is Mac mini M6 · 32 GB.