Can I Run Cosmos 3 Super on NVIDIA GeForce RTX 4080 Super?

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

Written by Jakub Rusinowski · Last updated August 15, 2026

No. Cosmos 3 Super needs 128.0 GB at BF16 and the NVIDIA GeForce RTX 4080 Super has only 16 GB. No quantization we publish closes a gap that size.

The numbers

Model	Cosmos 3 Super
Parameters	64B
Quantization	BF16
VRAM needed	128.0 GB
NVIDIA GeForce RTX 4080 Super VRAM	16 GB
Verdict	Does not fit

What to do next

Either step down to a smaller size in this family, or move to a Apple M2 Ultra (192 GB), the cheapest card we track with enough VRAM.

Affiliate disclosure: Some links on this page are affiliate links — if you buy through them, LLM Configurator may earn a commission at no extra cost to you. As an Amazon Associate, LLM Configurator earns from qualifying purchases.

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

Apple Mac Studio M2 Ultra

192 GB VRAM · 60 W board power

2026 prices are volatile — check the current listing.

Check price on Amazon

Won't fit — rent Cosmos 3 Super instead

Cosmos 3 Super needs ~128 GB but this GPU has 16 GB. Rent a 2× A100 (160 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 $1.54/hr · typical low · varies

Rent on Vast.ai →

RunPod $2.78/hr

Rent on RunPod →

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 4080 Super

Cosmos 3 Nano — runs at a lower quant (32.0 GB)
Cosmos 3 Edge — runs (8.0 GB)

Cosmos 3 Super on nearby hardware

Intel Arc B580 (12 GB) — does not fit
AMD Radeon RX 7900 XT (20 GB) — does not fit

All Cosmos 3 sizes on the NVIDIA GeForce RTX 4080 Super | VRAM calculator for Cosmos 3 Super | NVIDIA GeForce RTX 4080 Super GPU page | Check your hardware