RX 9070 16GBBudget pick
640 GB/s (+490)
C
Raises estimated decode speed by about 263%.81.3 tok/s decode
Raises estimated decode speed by about 263%.
Adds memory headroom for longer context windows and future model growth.
~$479 MSRP
openchat 3.6 8b 20240522 IMat needs ~8.7 GB VRAM. MacBook Pro M3 Pro 18GB has 13.0 GB. With Q4_K_M quantization, expect ~22 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
Runs well
Decode
22.4 tok/s
TTFT
8628 ms
Safe context
89K
Memory
8.7 GB / 13.0 GB
This setup is broadly balanced for this model.
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.
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | C | Runs well | 22.4 tok/s | 4706 ms | 89K |
| Coding | C | Runs well | 22.4 tok/s | 8628 ms | 89K |
| Agentic Coding | C | Runs well | 22.4 tok/s | 12550 ms | 89K |
| Reasoning | C | Runs well | 22.4 tok/s | 10197 ms | 89K |
| RAG | C | Runs well | 22.4 tok/s | 15687 ms | 89K |
How openchat 3.6 8b 20240522 IMat (8B params) fits at each quantization level on MacBook Pro M3 Pro 18GB (13.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 3.1 GB | Low | C49 |
Q3_K_S | 3 | 3.9 GB | Low | C49 |
NVFP4 | 4 |
Copy-paste commands to run openchat 3.6 8b 20240522 IMat on your machine.
Run
lms load hf-legraphista--openchat-3-6-8b-20240522-imat-gguf && lms server startUpgrade options
Raises estimated decode speed by about 263%.
Adds memory headroom for longer context windows and future model growth.
~$479 MSRP
Raises estimated decode speed by about 254%.
Adds memory headroom for longer context windows and future model growth.
~$499 MSRP
Yes, MacBook Pro M3 Pro 18GB can run openchat 3.6 8b 20240522 IMat with a C grade (Runs well). Expected decode speed: 22.4 tok/s.
openchat 3.6 8b 20240522 IMat (8B parameters) requires approximately 8.7 GB of memory with Q4_K_M quantization.
The recommended quantization for openchat 3.6 8b 20240522 IMat is Q4_K_M, which balances quality and memory efficiency.
On MacBook Pro M3 Pro 18GB, openchat 3.6 8b 20240522 IMat achieves approximately 22.4 tokens per second decode speed with a time-to-first-token of 8628ms using Q4_K_M quantization.
For coding workloads, openchat 3.6 8b 20240522 IMat on MacBook Pro M3 Pro 18GB receives a C grade with 22.4 tok/s and 89K context.
On MacBook Pro M3 Pro 18GB, openchat 3.6 8b 20240522 IMat can safely use up to 89K tokens of context. The model's official context limit is —, 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/hf-legraphista--openchat-3-6-8b-20240522-imat-gguf-on-m3-pro-18gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
Preview:
4.5 GB |
| Medium |
| C50 |
Q4_K_M | 4 | 4.9 GB | Medium | C51 |
Q5_K_M | 5 | 5.8 GB | High | C52 |
Q6_K | 6 | 6.6 GB | High | C52 |
Q8_0Best for your GPU | 8 | 8.6 GB | Very High | C51 |
F16 | 16 | 16.4 GB | Maximum | F0 |
Not always. MacBook Pro M3 Pro 18GB 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.