Can I Run Cosmos 3 Nano on NVIDIA GeForce RTX 3070?

Name: LLM Configurator — GPU VRAM Checker
Author: LLM Configurator

Written by Jakub Rusinowski · Last updated August 15, 2026

No. Cosmos 3 Nano needs 32.0 GB at BF16 and the NVIDIA GeForce RTX 3070 has only 8 GB. No quantization we publish closes a gap that size.

The numbers

Model	Cosmos 3 Nano
Parameters	16B
Quantization	BF16
VRAM needed	32.0 GB
NVIDIA GeForce RTX 3070 VRAM	8 GB
Verdict	Does not fit

What to do next

Either step down to a smaller size in this family, or move to a Apple M3 Pro (36 GB), the cheapest card we track with enough VRAM.

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Cheapest card we track with enough VRAM for Cosmos 3 Nano:

Apple MacBook Pro M3 Pro

36 GB VRAM · 30 W board power

2026 prices are volatile — check the current listing.

Check price on Amazon

Won't fit — rent Cosmos 3 Nano instead

Cosmos 3 Nano needs ~32 GB but this GPU has 8 GB. Rent a A100 (40 GB)-class GPU by the hour instead of buying one:

Affiliate links — we may earn a commission if you sign up, at no extra cost to you.

Vast.ai $0.55/hr · typical low · varies

Rent on Vast.ai →

Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.

Other Cosmos 3 sizes on the NVIDIA GeForce RTX 3070

Cosmos 3 Super — does not fit (128.0 GB)
Cosmos 3 Edge — runs at a lower quant (8.0 GB)

Cosmos 3 Nano on nearby hardware

NVIDIA GeForce RTX 3080 (10GB) (10 GB) — runs at a lower quant

All Cosmos 3 sizes on the NVIDIA GeForce RTX 3070 | VRAM calculator for Cosmos 3 Nano | NVIDIA GeForce RTX 3070 GPU page | Check your hardware