How much VRAM does Stable Diffusion 3 Medium need?

Stable Diffusion 3 Medium requires 5 GB VRAM at recommended quality (FP16).

What is the best GPU for Stable Diffusion 3 Medium?

The NVIDIA Grace Blackwell Ultra GB300 delivers the best performance for Stable Diffusion 3 Medium, achieving 20 tok/s at FP16 with an excellent rating.

Can I run Stable Diffusion 3 Medium on an RTX 4060 Ti?

Yes. On the NVIDIA GeForce RTX 4060 Ti 16GB, Stable Diffusion 3 Medium runs at – (FP16, good).

Image gen2B

Image gen

Stable Diffusion 3 Medium

Stable Diffusion · Stability AI Community License

Stability AI's SD3 medium model for high-quality image generation.

Parameters: 2B
Architecture: Dense
Context: 77 tokens
Released: 2024-06-12
Engines: ComfyUI, Automatic1111, diffusers

Parameters

VRAM

5 GB

Context

Formats

GPUs

Stable Diffusion 3 Medium (2B) requires 5 GB VRAM at recommended quality (FP16). On NVIDIA Grace Blackwell Ultra GB300, expect approximately 20 tok/s at FP16. For the best experience, Starter AI Desktop ($582) is recommended.

Source: OwnRig methodology

VRAM (Recommended)

5 GB

Quantization

FP16

File Size

4 GB

Max Context

0K tokens

Primary Use

Image gen

Compatible GPUs

22 devices


NVIDIA Grace Blackwell Ultra GB300	FP16	20 tok/s	Excellent
NVIDIA GeForce RTX 3080 10GB	FP16	–	Excellent
NVIDIA GeForce RTX 4070 Ti 12GB	FP16	–	Excellent
NVIDIA RTX 4080 Laptop (120-150W)	FP16	–	Excellent
NVIDIA GeForce RTX 4090	FP16	–	Excellent
NVIDIA GeForce RTX 5090	FP16	–	Excellent
AMD Radeon Pro W7900	FP16	–	Excellent
NVIDIA RTX PRO 6000 Blackwell	FP16	–	Excellent
NVIDIA RTX PRO 6000 Blackwell Max-Q	FP16	–	Excellent
Apple M3 Pro (18GB Unified)	FP16	–	Good
NVIDIA GeForce RTX 4060 8GB	FP16	–	Good
NVIDIA RTX 4060 Laptop (40-60W)	FP16	–	Good
NVIDIA GeForce RTX 4060 Ti 16GB	FP16	–	Good
NVIDIA RTX 4070 Laptop (80-115W)	FP16	–	Good
AMD Radeon RX 7900 XTX	FP16	–	Good
NVIDIA GeForce RTX 5060 8GB	FP16	–	Good
NVIDIA GeForce RTX 5060 Ti 16GB	FP16	–	Good
NVIDIA RTX 4090 Laptop (150-175W)	FP16	–	Acceptable
AMD Radeon RX 7600	FP16	–	Acceptable
AMD Radeon RX 9070	FP16	–	Acceptable
AMD Radeon RX 9060 XT 16GB	FP16	–	Acceptable
AMD Radeon RX 9060 XT 8GB	FP16	–	Acceptable

Showing 22 of 22 entries

Hardware

Recommended Builds

Complete PC builds that can run Stable Diffusion 3 Medium.

Extreme

Next-Gen AI Workstation

The fastest single GPU, built around the new RTX 5090

RTX 5090 32GB·32 GBVRAM

Runs 6 models

$3,843

FAQ

Frequently Asked Questions

How much VRAM does Stable Diffusion 3 Medium need?: Stable Diffusion 3 Medium requires 5 GB VRAM at recommended quality (FP16).
What is the best GPU for Stable Diffusion 3 Medium?: The NVIDIA Grace Blackwell Ultra GB300 delivers the best performance for Stable Diffusion 3 Medium, achieving 20 tok/s at FP16 with an excellent rating.
Can I run Stable Diffusion 3 Medium on an RTX 4060 Ti?: Yes. On the NVIDIA GeForce RTX 4060 Ti 16GB, Stable Diffusion 3 Medium runs at – (FP16, good).

Related Guides

Buying Guide

Best GPUs for Stable Diffusion, Flux, and SD3 in 2026

GPU requirements for SDXL, Stable Diffusion 3 Medium, SD 3.5 Large, and FLUX.1 Dev. Per-GPU performance verdicts for RTX 4060 Ti, RTX 4070, RTX 4090, and Apple Silicon.

All models

Data confidence: estimated. Source

VRAM requirements are calculated from model parameters and may vary by inference engine, context length, and batch size. Performance estimates are based on community benchmarks and should be verified for your specific configuration.Stable Diffusion is a trademark of its respective owner. OwnRig is not affiliated with or endorsed by the model creator.