Mac Studio M3 Ultra 96GBGünstige Wahl
96 GB Unified (+48)
C
Adds memory headroom for longer context windows and future model growth.101.4 tok/s Dekodierung
Adds memory headroom for longer context windows and future model growth.
ca. $3,999 MSRP
Can Yi 1.5 9B Chat run on NVIDIA L40S 48GB?
YES — Runs Great
C47Usable
Estimated from fit model
Yi 1.5 9B Chat needs ~12.5 GB VRAM. NVIDIA L40S 48GB has 48.0 GB. With Q4_K_M quantization, expect ~123 tok/s.
Runtime: OllamaCapacity: RoomyBandwidth: HighStack: BasicBottleneck: Balanced
Operating mode
Choose the run profile you care about
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
Q4_K_M (Medium quality) — 12.5 GB, 122.8 tok/s, Runs well
12.5 GB required48.0 GB available
26% VRAM used
Fit status
Runs well
Decode
122.8 tok/s
TTFT
1577 ms
Safe context
554K
Memory
12.5 GB / 48.0 GB
Memory breakdown
Weights5.5 GB
KV Cache1.1 GB
Runtime1.2 GB
Headroom4.8 GB
See how fast it feels
See how fast it feelsYi 1.5 9B Chat on NVIDIA L40S 48GB
1st promptCold start — includes initialization
>What is local AI inference?
Local AI inference means running an AI language model directly on your own hardware — your laptop, desktop, or server — instead of sending requests to a remote cloud API.
When you run inference locally the model weights are loaded into your GPU or unified memory. Each token you generate requires reading those weights from memory, so memory bandwidth is the main bottleneck for decode speed.
Key benefits of running locally:
- Full privacy: your prompts never leave your machine
- No per-token cost or rate limits
- Works offline once the model is downloaded
- Latency depends only on your hardware
2nd promptWarm — model ready, no init overhead
>How much VRAM do I need?
It depends on the model size and quantization level. A rough rule of thumb:
Model size Q4 (4-bit) Q8 (8-bit) FP16
7B params ~4.3 GB ~7.5 GB ~14 GB
13B params ~7.9 GB ~13.9 GB ~26 GB
70B params ~42.7 GB ~74.9 GB ~140 GB
Most people use 4-bit quantization (Q4_K_M) which gives 90-95% of full quality at a fraction of the memory. A 24 GB GPU can comfortably run most 7B-13B models.
Estimated: 122.8 tok/s decode · 1.6s TTFT (warm) · 307 tok/s prefill
What limits this setup
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.
Best improvement path
Performance by workload
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | C | Runs well | 122.8 tok/s | 860 ms | 554K |
| Coding | C | Runs well | 122.8 tok/s | 1577 ms | 554K |
| Agentic Coding | C | Runs well | 122.8 tok/s | 2294 ms | 554K |
| Reasoning | C | Runs well | 122.8 tok/s | 1864 ms | 554K |
| RAG | C | Runs well | 122.8 tok/s | 2868 ms | 554K |
Quantization options
How Yi 1.5 9B Chat (9B params) fits at each quantization level on NVIDIA L40S 48GB (48.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 3.5 GB | Low | C41 |
Q3_K_S | 3 | 4.4 GB | Low | C41 |
NVFP4 | 4 | 5.0 GB | Medium | C42 |
Q4_K_M | 4 | 5.5 GB | Medium | C42 |
Q5_K_M | 5 | 6.5 GB | High | C42 |
Q6_K | 6 | 7.4 GB | High | C42 |
Q8_0 | 8 | 9.6 GB | Very High | C43 |
F16Best for your GPU | 16 | 18.5 GB | Maximum | C45 |
Get started
Copy-paste commands to run Yi 1.5 9B Chat on your machine.
Run
lms load hf-bartowski--yi-1-5-9b-chat-gguf && lms server startUpgrade-Optionen
Hardware, die Yi 1.5 9B Chat gut ausführt
Frequently asked questions
Can NVIDIA L40S 48GB run Yi 1.5 9B Chat?
Yes, NVIDIA L40S 48GB can run Yi 1.5 9B Chat with a C grade (Runs well). Expected decode speed: 122.8 tok/s.
How much VRAM does Yi 1.5 9B Chat need?
Yi 1.5 9B Chat (9B parameters) requires approximately 12.5 GB of memory with Q4_K_M quantization.
What is the best quantization for Yi 1.5 9B Chat?
The recommended quantization for Yi 1.5 9B Chat is Q4_K_M, which balances quality and memory efficiency.
What speed will Yi 1.5 9B Chat run at on NVIDIA L40S 48GB?
On NVIDIA L40S 48GB, Yi 1.5 9B Chat achieves approximately 122.8 tokens per second decode speed with a time-to-first-token of 1577ms using Q4_K_M quantization.
Can NVIDIA L40S 48GB run Yi 1.5 9B Chat for coding?
For coding workloads, Yi 1.5 9B Chat on NVIDIA L40S 48GB receives a C grade with 122.8 tok/s and 554K context.
What context window can Yi 1.5 9B Chat use on NVIDIA L40S 48GB?
On NVIDIA L40S 48GB, Yi 1.5 9B Chat can safely use up to 554K tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.
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