Can A100 80GB SXM4 run Qwen2.5-72B-Instruct?

NVIDIA · 80 GB HBM2e · 2039 GB/s bandwidth · Alibaba · 72.7B · model ctx up to 128K

Yes — the A100 80GB SXM4 (80 GB HBM2e) can run Qwen2.5-72B-Instruct. At Q4 with the default 8K context it needs ≈ 55.53 GB VRAM (weights 39.99 GB + KV cache 14.54 GB + 1 GB runtime overhead), which fits within 80 GB. Decode at Q4/8K: ≈ 16.47 tok/s (measured, batch 1). FP16 needs ≈ 160.94 GB — does not fit on this card. Estimates come from memory-bandwidth math; rows tagged measured override estimates. Relative ranking is more reliable than absolute tok/s. Methodology.

Fit & speed by quant and context

Quant	Context	VRAM needed	Fits?	tok/s (decode)
Q4	4K	48.26 GB	Yes	16.47 measured
Q4	8K default	55.53 GB	Yes	16.47 measured
Q4	32K	99.15 GB	No	16.47 measured
FP16	4K	153.67 GB	No	3.8 est.
FP16	8K default	160.94 GB	No	3.5 est.
FP16	32K	204.56 GB	No	2.1 est.

Fits = weights + KV(ctx) + 1 GB overhead ≤ 95% of VRAM. Measured anchors are context-agnostic; the fit verdict is recomputed per context. A missing tok/s means the model is far beyond this card (offload-only territory).

VRAM breakdown at 8K context

Quant	Weights	KV cache	Overhead	Total needed	A100 80GB SXM4 VRAM
Q4	39.99 GB	14.54 GB	1 GB	55.53 GB	80 GB
FP16	145.4 GB	14.54 GB	1 GB	160.94 GB	80 GB

Other GPUs that run Qwen2.5-72B-Instruct

• B200 192GB SXM — ≈70.0 tok/s Q4 est.
• MI300X 192GB — ≈46.4 tok/s Q4 est.
• H200 141GB SXM5 — ≈42.0 tok/s Q4 est.
• H100 80GB SXM5 — ≈29.3 tok/s Q4 est.
• Gaudi 3 128GB — ≈28.7 tok/s Q4 est.
• MacBook Pro M4 Max 128GB — ≈11.0 tok/s Q4 measured
• Mac Studio M3 Ultra 96GB — ≈7.2 tok/s Q4 est.
• Mac Studio M2 Ultra 192GB — ≈7.0 tok/s Q4 est.

All GPUs for Qwen2.5-72B-Instruct →

Other models for the A100 80GB SXM4

• Qwen3-0.6B — ≈1621.9 tok/s Q4 est.
• gemma-3-1b-it — ≈1297.5 tok/s Q4 est.
• Llama-3.2-1B-Instruct — ≈1081.3 tok/s Q4 est.
• Qwen3-1.7B — ≈648.8 tok/s Q4 est.
• Qwen3-30B-A3B — ≈432.5 tok/s Q4 est.
• Qwen3-Coder-30B-A3B-Instruct — ≈432.5 tok/s Q4 est.
• GLM-4.7-Flash — ≈432.5 tok/s Q4 est.
• Qwen3-30B-A3B-Instruct-2507 — ≈432.5 tok/s Q4 est.

All models on the A100 80GB SXM4 →