To use dedicated gpu

I want to launch my steam games in my AMD gpu but by default it is running in Intel GPU
My amd gpu is: Advanced Micro Devices, Inc. [AMD/ATI] Sun XT [Ra
deon HD 8670A/8670M/8690M / R5 M330 / M430 / Radeon 520 Mobile] (rev 83)

INTEL gpu : Intel Corporation HD Graphics 620 (rev 02)

You start your application with DRI_PRIME=1

Does adding DRI_PRIME=1 in “SET LAUNCH OPTIONS …” in steam games switch to my amd gpu while launching steam games.