Increasing Dedicated Video Memory

Sep 9, 2018
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I have Dell inspiron 5576 Laptop and the issue I'm facing is regarding to the dedicated video memory it shows the total video memory is 4gb, Dedicated memory is 512mb and shared memory is 3087mb so is their anyway to increase the dedicated memory (everything is upto date i tried the increasing it via bios but their is not any option related to video memory as Dell bios has very few features) following are the specs
Model - Inspiron 5576
Cpu - AMD A-10 9630p
Gpu - Radeon rx 560 (4gb ddr5)
Ram - 8gb ddr4
HDD - 1tb
Radeon Adrenaline Edition 18.7.1
Win 10 Home edition (64 bit)