Tflops performance of 3080 or 3090

AI & Data Science Deep Learning (Training & Inference) Frameworks
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1

Hi when I am using 3080 or 3090 with cuda11.1 and cudnn8.0.5, the tflops of them cannot reach 30/36Tflops. The used framework is Pytorch.
What is the reason and how the performance can be reached?

2

if you aim for 180/200 Tflops, you have to use tensorflow