NVIDIA RTX 3070 Ti vs NVIDIA RTX 4070 for local LLMs
0 reports on the NVIDIA RTX 3070 Ti and 12 on the NVIDIA RTX 4070
Which is faster for local LLMs?
Nobody has reported the same model at the same quant on both cards yet, so there's no measured head-to-head. Memory bandwidth, which caps how fast a card can write, is 21% higher on the NVIDIA RTX 3070 Ti (608 GB/s on the NVIDIA RTX 3070 Ti, 504 on the NVIDIA RTX 4070). The estimates below compare them on the models people run most.
NVIDIA RTX 3070 Ti
- Memory
- 8GB
- Memory bandwidth
- 608 GB/s
- FP16 compute
- 87 TFLOPS
- Reports
- 0
NVIDIA RTX 4070
- Memory
- 12GB
- Memory bandwidth
- 504 GB/s
- FP16 compute
- 116 TFLOPS
- Reports
- 12
Estimated by the calculator
The quant the calculator recommends for each card and its estimated speed at a 32,768-token context with 32 GB of system RAM, from memory bandwidth and the model's shape.
| Model | NVIDIA RTX 3070 Ti | NVIDIA RTX 4070 |
|---|---|---|
| Qwen3.8 27B | 1.9 t/sQ6_K, layers on CPU | 1.7 t/sQ8_0, layers on CPU |
| Qwen3.8 125B · 6B active | doesn't fit at these settings | doesn't fit at these settings |
| Qwen3.6 35B · 3B active | 16.9 t/sQ5_K_M, experts in RAM | 13.9 t/sQ6_K, experts in RAM |
| DeepSeek V4 Flash 284B · 13B active | doesn't fit at these settings | doesn't fit at these settings |
| Qwen3.6 27B | 1.9 t/sQ6_K, layers on CPU | 1.7 t/sQ8_0, layers on CPU |
| Gemma 4 26B · 4B active | 10.7 t/sQ6_K, experts in RAM | 82.3 t/sQ2_K |
Change the context, RAM or model in the calculator: NVIDIA RTX 3070 Ti · NVIDIA RTX 4070
Every report on each card, with its source: NVIDIA RTX 3070 Ti · NVIDIA RTX 4070