Performance comparison: which is faster?
Radeon HD 6950 (AMD, 2011) and Radeon HD 6870 (AMD, 2011) are compared here. Compare scores and VRAM, generative AI usability, and CPUs that pair well with each GPU.
Overall performance: HD 6950 is about 9.4% faster
For generative AI, the higher-VRAM HD 6950（2GB） 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 | HD 6950 | HD 6870 |
|---|---|---|
| Performance Score | 3,500 | 3,200 |
| VRAM | 2GB | 1GB |
| Manufacturer | AMD | AMD |
| Series | HD 6000 | HD 6000 |
| Release Year | 2011 | 2011 |
| Compatible CPU Example | AMD A6-7470K | Core 2 Quad Q9550 |
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 HD 6950 also run here)
| If You Want To... | Recommended |
|---|---|
| Prioritize high fps and smooth performance in demanding games | HD 6950 |
| Run larger generative AI and LLM models | HD 6950 |
| Prioritize value and adequate performance | HD 6870 (the lower model is often sufficient) |
HD 6950 is about 9.4% higher by score (HD 6950: 3500 points / HD 6870: 3200 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.
HD 6950 has 2GB of VRAM, while HD 6870 has 1GB; HD 6950 has more. If image generation or a local LLM is even a possibility, the higher-VRAM option provides more room.
Using our guideline, AMD A6-7470K pairs well with HD 6950 and Core 2 Quad Q9550 with HD 6870 (CPU:GPU ≈ 0.9:1). If the CPU is too weak, replacing the GPU may not raise fps, so check the combination before buying.
→ HD 6950 Details ／ HD 6870 Details ／ Compare Another Combination
