Performance comparison: which is faster?
Radeon R9 Fury X (AMD, 2015) and Radeon RX 580 (AMD, 2017) are compared here. Compare scores and VRAM, generative AI usability, and CPUs that pair well with each GPU.
Overall performance: R9 Fury X is about 13.3% faster
For generative AI, the higher-VRAM RX 580（8GB） has the advantage. For gaming, prioritize performance score and CPU compatibility; for AI, prioritize VRAM.
Relative performance score (higher is faster). Actual fps varies by resolution, game, and CPU configuration.
| Item | R9 Fury X | RX 580 |
|---|---|---|
| Performance Score | 8,500 | 7,500 |
| VRAM | 4GB | 8GB |
| Manufacturer | AMD | AMD |
| Series | R9 | RX 5000 |
| Release Year | 2015 | 2017 |
| Compatible CPU Example | Core i3-9100 | Core i5-3570K |
These generative AI models can run on only one GPU because of the VRAM difference (Stable Diffusion, Flux, LLMs, and others).
— None (all models that run on RX 580 also run here)
| If You Want To... | Recommended |
|---|---|
| Prioritize high fps and smooth performance in demanding games | R9 Fury X |
| Run larger generative AI and LLM models | RX 580 |
| Prioritize value and adequate performance | RX 580 (the lower model is often sufficient) |
R9 Fury X is about 13.3% higher by score (R9 Fury X: 8500 points / RX 580: 7500 points). Actual fps also varies by resolution, game, and CPU, so price is a reasonable deciding factor when the gap is only a few percent.
R9 Fury X has 4GB of VRAM, while RX 580 has 8GB; RX 580 has more. If image generation or a local LLM is even a possibility, the higher-VRAM option provides more room.
Using our guideline, Core i3-9100 pairs well with R9 Fury X and Core i5-3570K with RX 580 (CPU:GPU ≈ 0.9:1). If the CPU is too weak, replacing the GPU may not raise fps, so check the combination before buying.
→ R9 Fury X Details ／ RX 580 Details ／ Compare Another Combination
