Performance comparison: which is faster?
Radeon RX 6600 (AMD, 2021) and Radeon RX 6500 XT (AMD, 2022) are compared here. Compare scores and VRAM, generative AI usability, and CPUs that pair well with each GPU.
Overall performance: RX 6600 is about 132.8% faster
For generative AI, the higher-VRAM RX 6600（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 | RX 6600 | RX 6500 XT |
|---|---|---|
| Performance Score | 13,500 | 5,800 |
| VRAM | 8GB | 4GB |
| Manufacturer | AMD | AMD |
| Series | RX 6000 | RX 6000 |
| Release Year | 2021 | 2022 |
| Compatible CPU Example | Ryzen 5 1600 | Core i3-6100 |
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 6600 also run here)
| If You Want To... | Recommended |
|---|---|
| Prioritize high fps and smooth performance in demanding games | RX 6600 |
| Run larger generative AI and LLM models | RX 6600 |
| Prioritize value and adequate performance | RX 6500 XT (the lower model is often sufficient) |
RX 6600 is about 132.8% higher by score (RX 6600: 13500 points / RX 6500 XT: 5800 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.
RX 6600 has 8GB of VRAM, while RX 6500 XT has 4GB; RX 6600 has more. If image generation or a local LLM is even a possibility, the higher-VRAM option provides more room.
Using our guideline, Ryzen 5 1600 pairs well with RX 6600 and Core i3-6100 with RX 6500 XT (CPU:GPU ≈ 0.9:1). If the CPU is too weak, replacing the GPU may not raise fps, so check the combination before buying.
→ RX 6600 Details ／ RX 6500 XT Details ／ Compare Another Combination
