gemma 3 1b it needs ~8.5 GB VRAM. Mac Studio M1 Ultra 64GB has 46.1 GB. With Q4_K_M quantization, expect ~14 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
14.0 tok/s
TTFT
13829 ms
Safe context
5.1M
Memory
8.5 GB / 46.1 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 | D | Runs well | 14.0 tok/s | 7543 ms | 3.0M |
| Coding | D | Runs well | 14.0 tok/s | 13829 ms | 5.1M |
| Agentic Coding | D | Runs well | 14.0 tok/s | 20114 ms | 5.1M |
| Reasoning | D | Runs well | 14.0 tok/s | 16343 ms | 5.1M |
| RAG | D | Runs well | 14.0 tok/s | 25143 ms | 5.1M |
How gemma 3 1b it (1B params) fits at each quantization level on Mac Studio M1 Ultra 64GB (46.1 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 0.4 GB | Low | C41 |
Q3_K_S | 3 | 0.5 GB | Low | C41 |
NVFP4 | 4 |
Copy-paste commands to run gemma 3 1b it on your machine.
Run
lms load hf-maziyarpanahi--gemma-3-1b-it-gguf && lms server startYes, Mac Studio M1 Ultra 64GB can run gemma 3 1b it with a D grade (Runs well). Expected decode speed: 14.0 tok/s.
gemma 3 1b it (1B parameters) requires approximately 8.5 GB of memory with Q4_K_M quantization.
The recommended quantization for gemma 3 1b it is Q4_K_M, which balances quality and memory efficiency.
On Mac Studio M1 Ultra 64GB, gemma 3 1b it achieves approximately 14.0 tokens per second decode speed with a time-to-first-token of 13829ms using Q4_K_M quantization.
For coding workloads, gemma 3 1b it on Mac Studio M1 Ultra 64GB receives a D grade with 14.0 tok/s and 5.1M context.
On Mac Studio M1 Ultra 64GB, gemma 3 1b it can safely use up to 5.1M 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-maziyarpanahi--gemma-3-1b-it-gguf-on-m1-ultra-64gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
Preview:
0.6 GB |
| Medium |
| C41 |
Q4_K_M | 4 | 0.6 GB | Medium | C41 |
Q5_K_M | 5 | 0.7 GB | High | C41 |
Q6_K | 6 | 0.8 GB | High | C41 |
Q8_0 | 8 | 1.1 GB | Very High | C41 |
F16Best for your GPU | 16 | 2.1 GB | Maximum | C42 |
Not always. Mac Studio M1 Ultra 64GB 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.