The problem of different graphics card training speed

[DYYYYYYYYY]

Hello, I encountered a problem when using your code to train the kitti dataset.
With the same parameter settings, the time required for my training with RTX2060 and RTX3090 is almost the same. Why is this? It stands to reason that the speed of RTX3090 should be much faster than RTX2060.

[rginpan]

It is very common, just imagine if the GPU memory is still left in 2060 case, no matter how much the memory is increased with new GPU, the speed will not change