Best GPU for Flux.1 (2025)
Flux.1 is the new king of open-source image generation, delivering midjourney-level quality. It is extremely demanding, requiring at least 12GB VRAM, with 24GB being ideal for the 'Dev' version.
Prices updated: Dec 5, 2025
GeForce RTX 5090
The ultimate choice for Flux.1. With 32GB GDDR7 VRAM and a massive score of 14,480, it handles large contexts and training with ease.
Radeon RX 9060 XT 8 GB
The smart choice. It meets the 12GB requirement perfectly while offering the best performance per dollar ratio.
GeForce RTX 3050 8 GB
The most affordable way to run Flux.1. It hits the minimum specs needed to get started without breaking the bank.
Why VRAM Matters for Flux.1
Flux.1 GPU & System Requirements
CPU
Modern 8-core CPU
RAM
32GB minimum (64GB highly recommended as Flux offloads aggressively)
Storage
NVMe SSD
All Compatible GPUs for Flux.1
| GPU | Steel Nomad ↓ | Price ↕ | VRAM ↕ |
|---|---|---|---|
| GeForce RTX 5090 | 14,480 | $3199.99 | 32GB GDDR7 |
| GeForce RTX 4090 | 9,236 | $3134.99 | 24GB GDDR6X |
| GeForce RTX 5080 | 8,762 | $999.99 | 16GB GDDR7 |
| Radeon RX 9070 XT | 7,249 | $629.99 | 16GB GDDR6 |
| Radeon RX 7900 XTX | 6,837 | $580.61 | 24GB GDDR6 |
Frequently Asked Questions
What are the GPU requirements for Flux.1?
Flux.1 is very demanding. The minimum GPU requirement is 12GB VRAM for the 'Schnell' version. For the high-quality 'Dev' version, 16GB is the functional minimum, and 24GB VRAM is recommended for optimal performance and speed.
Can I run Flux.1 on 8GB VRAM?
Barely. You will need to use the GGUF quantized versions (Q4 or Q8) and ComfyUI. It will be slow, but it can work. Don't expect to multitask.
What is the best GPU for Flux.1?
The RTX 3090 or 4090 (24GB) are the gold standards. They allow you to run the high-quality Dev version with fp8 weights comfortably. For budget users, the RTX 4060 Ti 16GB is the entry-level gatekeeper.