How can I increase VRAM on Asus Vivobook S15 M513?

I tried it in BIOS. But no option found. I have Ryzen 5 4500u which comes with Vega 6 APU. It doesn't have any dedicated memory. It shares it memory with Ram. Which is 512 mb. Now I want to upgrade it to 1 GB. I checked BIOS and I can't see any option there. How can I increase that?
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Hello vijaymahajan370,
Well...the easiest way is to upgrade your RAM.
When your RAM increased, the GPU will share more with it too,
but there will be a limitation, according to the GPU specification.
Thank you.