Performance comparison: which is faster?
GeForce GTX 1660 Ti (NVIDIA, 2019) and GeForce GTX 1070 (NVIDIA, 2016) are compared here. Compare scores and VRAM, generative AI usability, and CPUs that pair well with each GPU.
Overall performance: GTX 1660 Ti is about 4.8% 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 1660 Ti | GTX 1070 |
|---|---|---|
| Performance Score | 11,000 | 10,500 |
| VRAM | 6GB | 8GB |
| Manufacturer | NVIDIA | NVIDIA |
| Series | GTX 16 | GTX 10 |
| Release Year | 2019 | 2016 |
| Compatible CPU Example | Ryzen 3 2300X | Core i7-5775C |
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 1660 Ti |
| Run larger generative AI and LLM models | GTX 1070 |
| Prioritize value and adequate performance | GTX 1070 (the lower model is often sufficient) |
GTX 1660 Ti is about 4.8% higher by score (GTX 1660 Ti: 11000 points / GTX 1070: 10500 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 1660 Ti has 6GB of VRAM, while GTX 1070 has 8GB; 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, Ryzen 3 2300X pairs well with GTX 1660 Ti and Core i7-5775C with GTX 1070 (CPU:GPU ≈ 0.9:1). If the CPU is too weak, replacing the GPU may not raise fps, so check the combination before buying.
