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URL: https://willitrunai.com/can-run/qwen-2.5-72b-on-b100-192gb


Can Qwen 2.5 72B run on B100 192GB?

YES — Runs Great

A81Great
Estimated from fit model

Qwen 2.5 72B needs ~69.2 GB VRAM. B100 192GB has 192.0 GB. With Q4_K_M quantization, expect ~166 tok/s.

Runtime: OllamaCapacity: RoomyBandwidth: HighStack: BasicBottleneck: 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) — 69.2 GB, 166.4 tok/s, Runs well
69.2 GB required192.0 GB available
36% VRAM used

Fit status

Runs well

Decode

166.4 tok/s

TTFT

1164 ms

Safe context

131K

Memory

69.2 GB / 192.0 GB

Memory breakdown

Weights43.9 GB
KV Cache4.9 GB
Runtime1.2 GB
Headroom19.2 GB

See how fast it feels

See how fast it feelsQwen 2.5 72B on B100 192GB
1st promptCold start — includes initialization
>Solve: If a train travels at 60 mph for 2.5 hours, how far does it go?
Let me work through this step by step. Given information: - Speed = 60 mph (miles per hour) - Time = 2.5 hours Formula: Distance = Speed x Time Calculation: Distance = 60 mph x 2.5 h = 150 miles The train travels 150 miles. Double-check: at 60 mph the train covers 60 miles each hour. In half an hour it covers 30 miles. So in 2.5 hours: 60 + 60 + 30 = 150 miles. Confirmed.
2nd promptWarm — model ready, no init overhead
>What if the train stops for 20 minutes halfway?
The stop doesn't change the total distance covered while moving, but it affects total trip time. Breakdown: - First half: 1.25 hours at 60 mph = 75 miles - Stop: 20 minutes (no distance) - Second half: 1.25 hours at 60 mph = 75 miles Total distance: 150 miles (same) Total time: 2.5 h + 0.33 h = 2.83 hours Average speed: 150 / 2.83 = 53 mph The distance stays the same but average speed drops to 53 mph because of the stop.
Estimated: 166.4 tok/s decode · 1.2s TTFT (warm) · 416 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
ChatARuns well166.4 tok/s635 ms131K
CodingARuns well166.4 tok/s1164 ms131K
Agentic CodingARuns well166.4 tok/s1692 ms131K
ReasoningARuns well153.0 tok/s1495 ms131K
RAGARuns well166.4 tok/s2115 ms131K

Quantization options

How Qwen 2.5 72B (72B params) fits at each quantization level on B100 192GB (192.0 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
28.1 GB
LowB70
Q3_K_S
3
35.3 GB
LowA71
NVFP4
4

Get started

Copy-paste commands to run Qwen 2.5 72B on your machine.

Run

ollama run qwen2.5:72b

Your hardware

More models your B100 192GB can run

ModelParamsGradeDecodeCapabilities
👁 Mistral
Devstral 2 123B Instruct
123BS97.4 tok/s
👁 Alibaba
Qwen 3.5 122B A10B
122BS

Frequently asked questions

See all results for B100 192GBSee all hardware for Qwen 2.5 72B
40.3 GB
Medium
A71
Q4_K_M
4
43.9 GB
MediumA71
Q5_K_M
5
51.8 GB
HighA72
Q6_K
6
59.0 GB
HighA73
Q8_0
8
77.0 GB
Very HighA75
F16Best for your GPU
16
147.6 GB
MaximumA79
270.2 tok/s
👁 DeepSeek
DeepSeek V4 Flash
284BS144.8 tok/s
👁 Mistral
Mistral Small 4 119B
119BS292.9 tok/s
👁 OpenAI
GPT-OSS 120B
117BS102.4 tok/s