How fast will Llama 3.1 8B feel on the NVIDIA RTX 4070 12GB?

Llama 3.1 8B on the NVIDIA RTX 4070 12GB

Llama 3.1 8B is a 8.03B-parameter model. At Q4_K_M it needs about 5.7 GB of memory. The NVIDIA RTX 4070 12GB has 11 GB usable, so it fits entirely in memory. Expect about 63 tokens/sec (45–82), with the first token after 0.3 s for a short prompt. This estimate is based on community benchmarks of this exact setup.

Speed by quantization

QuantizationFile sizeMemoryGenerationFirst tokenSource
Q4_K_M4.9 GBFits63 tok/s0.3 sMeasured
Q8_08.5 GBFits24 tok/s0.3 sDerived
FP1616.1 GBPartial offload7.1 tok/s1.2 sProjected

Llama 3.1 8B on other hardware

Other models on the NVIDIA RTX 4070 12GB

All models on the NVIDIA RTX 4070 12GB · Llama 3.1 8B on all hardware

Estimates for a short prompt on a single device. Measured numbers come from community benchmarks (r/LocalLLaMA, localscore.ai and more); others are derived from similar setups or projected from specs. Open source on GitHub.