Can I Run Cosmos 3 on NVIDIA A100 80GB?

Written by Jakub Rusinowski · Last updated July 21, 2026

Yes, comfortably — you'll have ~48 GB of headroom running Cosmos 3 Nano at BF16 (32 GB, ~62 tok/s (est.)).

Buy This HardwareNVIDIA A100 80GB PCIe — 80 GB VRAM · 300 W board powerDeploy in the Cloud NowNVIDIA A100 80GB on RunPod — from $1.39/hr · rate checked 2026-07

or compare on Vast.ai from $0.77/hr (typical low · varies)

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NVIDIA A100 80GB PCIe
80 GB VRAM · 300 W board power
2026 prices are volatile — check the current listing.
Check price on Amazon

NVIDIA A100 80GB Specs

VRAM80 GB
Memory Bandwidth1935 GB/s

Cosmos 3 Nano on the NVIDIA A100 80GB: VRAM by quantization

QuantVRAM neededFits 80 GB?Max context
F1633.5 GB✓ Yes16K
Q8_018.5 GB✓ Yes16K
Q6_K14.6 GB✓ Yes16K
Q5_K_M12.9 GB✓ Yes16K
Q4_K_M11.2 GB✓ Yes16K
Q3_K_M8.3 GB✓ Yes16K
Q2_K6.8 GB✓ Yes16K

VRAM needed assumes a 4K-token context with an f16 KV cache; “Max context” is the largest window that still fits in 80 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.

Cosmos 3 Sizes That Fit the NVIDIA A100 80GB

Cosmos 3 NanoBF16 · 32 GB · ~62 tok/s (est.)
Cosmos 3 EdgeBF16 · 8 GB · ~168 tok/s (est.)
Buy vs. rent Cosmos 3
Buy the GPU
~$15,000
NVIDIA A100 80GB · MSRP
Rent by the hour
from $0.55/hr
A100 (40 GB) class

At 2 hrs/day, buying (~$15,000) beats renting at $0.55/hr after about 37.9 years.

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Vast.ai $0.55/hr · typical low · varies
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Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.

FAQ

Can I run Cosmos 3 on the NVIDIA A100 80GB?

Yes, comfortably — you'll have ~48 GB of headroom running Cosmos 3 Nano at BF16 (32 GB, ~62 tok/s (est.)).

What's the best Cosmos 3 size for the NVIDIA A100 80GB?

Cosmos 3 Nano at BF16 quantization (32 GB), estimated ~62 tokens/sec.

Every Cosmos 3 size on the NVIDIA A100 80GB

SizeVRAMVerdictSpeed
Cosmos 3 Super128.0 GBRuns at Q8_0
Cosmos 3 Nano32.0 GBRuns~62 tok/s
Cosmos 3 Edge8.0 GBRuns~168 tok/s

Cosmos 3 on Other GPUs

Popular Models on the NVIDIA A100 80GB

VRAM Tier

Troubleshooting

Buying Guide

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