Performance comparison: which is faster?
Radeon HD 6870 (AMD, 2011) and Radeon R7 370 (AMD, 2014) are compared here. Compare scores and VRAM, generative AI usability, and CPUs that pair well with each GPU.
Overall performance: nearly equal
For generative AI, the higher-VRAM R7 370（4GB） 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 6870 | R7 370 |
|---|---|---|
| Performance Score | 3,200 | 3,200 |
| VRAM | 1GB | 4GB |
| Manufacturer | AMD | AMD |
| Series | HD 6000 | R7 |
| Release Year | 2011 | 2014 |
| Compatible CPU Example | Core 2 Quad Q9550 | 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 R7 370 also run here)
| If You Want To... | Recommended |
|---|---|
| Prioritize high fps and smooth performance in demanding games | HD 6870 |
| Run larger generative AI and LLM models | R7 370 |
| Prioritize value and adequate performance | HD 6870 (the lower model is often sufficient) |
Their scores are nearly identical (HD 6870: 3200 points / R7 370: 3200 points). In this case, compare price, VRAM, and power draw.
HD 6870 has 1GB of VRAM, while R7 370 has 4GB; R7 370 has more. If image generation or a local LLM is even a possibility, the higher-VRAM option provides more room.
Using our guideline, Core 2 Quad Q9550 pairs well with HD 6870 and Core 2 Quad Q9550 with R7 370 (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 6870 Details ／ R7 370 Details ／ Compare Another Combination
