Can Qwen 2.5 Math 72B run on NVIDIA H800 80GB?

YES — Runs Great

B69Good

Estimated from fit model

Qwen 2.5 Math 72B needs ~57.7 GB VRAM. NVIDIA H800 80GB has 80.0 GB. With Q4_K_M quantization, expect ~55 tok/s.

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

Capabilities:

Select quantization to explore

Q4_K_M (Medium quality) — 57.7 GB, 60.2 tok/s, Runs well

57.7 GB required80.0 GB available

72% VRAM used

Fit status

Runs well

Decode

60.2 tok/s

TTFT

3218 ms

Safe context

Memory

57.7 GB / 80.0 GB

Memory breakdown

Weights43.9 GB

KV Cache4.9 GB

Runtime0.9 GB

Headroom8.0 GB

See how fast it feels

See how fast it feelsQwen 2.5 Math 72B on NVIDIA H800 80GB
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: 60.2 tok/s decode · 3.2s TTFT (warm) · 150 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	B	Runs well	60.2 tok/s	1755 ms	4K
Coding	B	Runs well	55.3 tok/s	3499 ms	4K
Agentic Coding	B	Runs well	60.2 tok/s	4680 ms	4K
Reasoning	B	Runs well	60.2 tok/s	3803 ms	4K
RAG	B	Runs well	60.2 tok/s	5850 ms	4K

Quantization options

How Qwen 2.5 Math 72B (72B params) fits at each quantization level on NVIDIA H800 80GB (80.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	28.1 GB	Low	B57
Q3_K_S	3	35.3 GB	Low	B59
NVFP4	4	40.3 GB	Medium	B61
Q4_K_M	4	43.9 GB	Medium	B61
Q5_K_M	5	51.8 GB	High	B61
Q6_KBest for your GPU	6	59.0 GB	High	B61
Q8_0	8	77.0 GB	Very High	F0
F16	16	147.6 GB	Maximum	F0

Get started

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

Run

docker run --rm -it ghcr.io/ggerganov/llama.cpp:full \
  --hf-repo "Qwen/Qwen2.5-Math-72B-Instruct" \
  --hf-file "Qwen2.5-Math-72B-Instruct-Q4_K_M.gguf" \
  -c 4096 -ngl 99

Frequently asked questions

Can NVIDIA H800 80GB run Qwen 2.5 Math 72B?

Yes, NVIDIA H800 80GB can run Qwen 2.5 Math 72B with a B grade (Runs well). Expected decode speed: 55.3 tok/s.

How much VRAM does Qwen 2.5 Math 72B need?

Qwen 2.5 Math 72B (72B parameters) requires approximately 57.7 GB of memory with Q4_K_M quantization.

What is the best quantization for Qwen 2.5 Math 72B?

The recommended quantization for Qwen 2.5 Math 72B is Q4_K_M, which balances quality and memory efficiency.

What speed will Qwen 2.5 Math 72B run at on NVIDIA H800 80GB?

On NVIDIA H800 80GB, Qwen 2.5 Math 72B achieves approximately 55.3 tokens per second decode speed with a time-to-first-token of 3499ms using Q4_K_M quantization.

Can NVIDIA H800 80GB run Qwen 2.5 Math 72B for coding?

For coding workloads, Qwen 2.5 Math 72B on NVIDIA H800 80GB receives a B grade with 55.3 tok/s and 4K context.

What context window can Qwen 2.5 Math 72B use on NVIDIA H800 80GB?

On NVIDIA H800 80GB, Qwen 2.5 Math 72B can safely use up to 4K tokens of context. The model's official context limit is 4K, but available memory constrains the safe maximum.

See all results for NVIDIA H800 80GB See all hardware for Qwen 2.5 Math 72B

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