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URL: https://willitrunai.com/can-run/yi-34b-chat-on-l40-48gb


Can Yi 34B Chat run on NVIDIA L40 48GB?

YES — Runs Great

C53Usable
Estimated from fit model

Yi 34B Chat needs ~30.1 GB VRAM. NVIDIA L40 48GB has 48.0 GB. With Q4_K_M quantization, expect ~33 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: HighStack: StandardBottleneck: Balanced
Share:

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.

Capabilities:

Select quantization to explore

Q4_K_M (Medium quality) — 30.1 GB, 20.3 tok/s, Runs well
30.1 GB required48.0 GB available
63% VRAM used

Fit status

Runs well

Decode

20.3 tok/s

TTFT

9527 ms

Safe context

94K

Memory

30.1 GB / 48.0 GB

Memory breakdown

Weights20.7 GB
KV Cache3.7 GB
Runtime0.9 GB
Headroom4.8 GB

See how fast it feels

See how fast it feelsYi 34B Chat on NVIDIA L40 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: 20.3 tok/s decode · 9.5s TTFT (warm) · 51 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

WorkloadGradeFitDecodeTTFTContext
ChatCRuns well32.5 tok/s3250 ms94K
CodingCRuns well32.5 tok/s5958 ms94K
Agentic CodingBRuns well32.5 tok/s8666 ms94K
ReasoningCRuns well32.5 tok/s7041 ms94K
RAGBRuns well32.5 tok/s10833 ms94K

Quantization options

How Yi 34B Chat (34B params) fits at each quantization level on NVIDIA L40 48GB (48.0 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
13.3 GB
LowC46
Q3_K_S
3
16.7 GB
LowC47
NVFP4
4

Get started

Copy-paste commands to run Yi 34B Chat on your machine.

Run

lms load Yi-34B-Chat && lms server start

Upgrade options

Hardware that runs Yi 34B Chat well

👁 NVIDIA
NVIDIA A100 80GBBudget pick
80 GB VRAM (+32)2039 GB/s (+1175)
C
Raises estimated decode speed by about 342%.89.7 tok/s decode

Raises estimated decode speed by about 342%.

Adds memory headroom for longer context windows and future model growth.

~$15,000 MSRP

👁 NVIDIA
NVIDIA H800 80GBBest value
80 GB VRAM (+32)3000 GB/s (+2136)
C
Raises estimated decode speed by about 527%.127.2 tok/s decode

Raises estimated decode speed by about 527%.

Adds memory headroom for longer context windows and future model growth.

~$30,000 MSRP

👁 NVIDIA
NVIDIA H100 PCIe 80GBNVIDIA upgrade
80 GB VRAM (+32)2000 GB/s (+1136)
C
Raises estimated decode speed by about 333%.87.9 tok/s decode

Raises estimated decode speed by about 333%.

Adds memory headroom for longer context windows and future model growth.

~$30,000 MSRP

Frequently asked questions

See all results for NVIDIA L40 48GBSee all hardware for Yi 34B Chat
19.0 GB
Medium
C47
Q4_K_M
4
20.7 GB
MediumC48
Q5_K_M
5
24.5 GB
HighC49
Q6_K
6
27.9 GB
HighC50
Q8_0Best for your GPU
8
36.4 GB
Very HighC49
F16
16
69.7 GB
MaximumF0