Question about Lenovo Legion T5 – 26AMR5

In contrast to an internal graphics card (IGP), a dedicated graphics card has its own video memory (VRAM) and its own graphics processor, the GPU. Thus, the main memory is mostly relieved, allowing it to be used for other tasks.

10sec Google ;)

Hi Josh

Unloading the memory is not the main point. 10 seconds of Google is not enough. It is much more important that the memory on the graphics card is much closer to the GPU, so it can be clocked higher, and thus the data gets into the GPU (= 'CPU' of the graphics card) much faster. GPU access to the general RAM would be much too slow and throttle the whole graphics card because the GPU has nothing to do until the new data finally arrives.

To your other question:
The graphics card versions are a throttled/slimmed down version from the desktop version. On the one hand, the power consumption is reduced (the notebook would otherwise get much too hot) and I believe that they usually also have fewer computing units. You should be able to find data for a comparison on the homepage of the respective manufacturer.

I hope I was able to help you. If you have further questions, go ahead. Only those who ask learn something new.