Performance comparison: which is faster?
GeForce GTX 1070 (NVIDIA, 2016) and GeForce GTX 1660 (NVIDIA, 2019) are compared here. Compare scores and VRAM, generative AI usability, and CPUs that pair well with each GPU.
Overall performance: GTX 1070 is about 6.1% faster
For generative AI, the higher-VRAM GTX 1070（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 | GTX 1070 | GTX 1660 |
|---|---|---|
| Performance Score | 10,500 | 9,900 |
| VRAM | 8GB | 6GB |
| Manufacturer | NVIDIA | NVIDIA |
| Series | GTX 10 | GTX 16 |
| Release Year | 2016 | 2019 |
| Compatible CPU Example | Core i7-5775C | Core i7-3770K |
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 GTX 1070 also run here)
| If You Want To... | Recommended |
|---|---|
| Prioritize high fps and smooth performance in demanding games | GTX 1070 |
| Run larger generative AI and LLM models | GTX 1070 |
| Prioritize value and adequate performance | GTX 1660 (the lower model is often sufficient) |
GTX 1070 is about 6.1% higher by score (GTX 1070: 10500 points / GTX 1660: 9900 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.
GTX 1070 has 8GB of VRAM, while GTX 1660 has 6GB; GTX 1070 has more. If image generation or a local LLM is even a possibility, the higher-VRAM option provides more room.
Using our guideline, Core i7-5775C pairs well with GTX 1070 and Core i7-3770K with GTX 1660 (CPU:GPU ≈ 0.9:1). If the CPU is too weak, replacing the GPU may not raise fps, so check the combination before buying.
→ GTX 1070 Details ／ GTX 1660 Details ／ Compare Another Combination
