There is really no option to increase/decrease dedicated video RAM. Just in case the entire dedicated VRAM gets used then it might use some memory in the RAM.
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Windows 7 Home Premium 64-BITAMD A8 7200P8GB 1600mhzRadeon R5 (APU) + Radeon R5 M230 2GB Dual Gra...
Depends on the age of the computer and chipset. The older Intel graphics when it was actually onboard and not on the CPU, you usually could increase the amount of dedicated. Ever since Intel moved the GPU onto the CPU, what you see is what you get.