Yi 1.5 34B needs ~30.4 GB VRAM. NVIDIA L20 48GB has 48.0 GB. With Q4_K_M quantization, expect ~33 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
33.0 tok/s
TTFT
5864 ms
Safe context
4K
Memory
30.4 GB / 48.0 GB
This setup is broadly balanced for this model.
No major red flags
This recommendation has enough memory headroom and acceptable estimated speed for the selected workload.
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | B | Runs well | 33.0 tok/s | 3198 ms | 4K |
| Coding | B | Runs well | 33.0 tok/s | 5864 ms | 4K |
| Agentic Coding | B | Runs well | 33.0 tok/s | 8529 ms | 4K |
| Reasoning | B | Runs well | 33.0 tok/s | 6930 ms | 4K |
| RAG | B | Runs well | 33.0 tok/s | 10661 ms | 4K |
How Yi 1.5 34B (34B params) fits at each quantization level on NVIDIA L20 48GB (48.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 13.3 GB | Low | B57 |
Q3_K_S | 3 | 16.7 GB | Low | B58 |
NVFP4 | 4 |
Copy-paste commands to run Yi 1.5 34B on your machine.
Run
lms load Yi-1.5-34B-Chat && lms server startYes, NVIDIA L20 48GB can run Yi 1.5 34B with a B grade (Runs well). Expected decode speed: 33.0 tok/s.
Yi 1.5 34B (34B parameters) requires approximately 30.4 GB of memory with Q4_K_M quantization.
The recommended quantization for Yi 1.5 34B is Q4_K_M, which balances quality and memory efficiency.
On NVIDIA L20 48GB, Yi 1.5 34B achieves approximately 33.0 tokens per second decode speed with a time-to-first-token of 5864ms using Q4_K_M quantization.
For coding workloads, Yi 1.5 34B on NVIDIA L20 48GB receives a B grade with 33.0 tok/s and 4K context.
On NVIDIA L20 48GB, Yi 1.5 34B can safely use up to 4K tokens of context. The model's official context limit is 4K, 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/yi-1.5-34b-on-l20-48gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
Preview:
19.0 GB |
| Medium |
| B59 |
Q4_K_M | 4 | 20.7 GB | Medium | B59 |
Q5_K_M | 5 | 24.5 GB | High | B60 |
Q6_K | 6 | 27.9 GB | High | B61 |
Q8_0Best for your GPU | 8 | 36.4 GB | Very High | B60 |
F16 | 16 | 69.7 GB | Maximum | F0 |