AMD R5 M465 Series on Nixos usable?

Hey! I’ve been using Nixos on a laptop for a while. I received this laptop from an office that was decomissioning their old devices for new ones. I’ve love using it and recently found out it has a Discrete GPU but after searching for a while I still don’t know if I can exploit it on Nixos I’m really not familliar with AMD’s GPU’s.

GPU (From FastFetch):
AMD Radeon R5 M465 Series [Discrete]

GPU (From lspci):
Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT [Radeon R7 M260/M265 / M340/M360 / M440/M445 / 530/535 / 620/625 Mobile] (rev c1)

Can I do something with that discrete GPU ? And if so how do I set it up ?
Thanks.