It depends on your system updates and manufacturer changes; you might need to reinstall them.
It depends on your system updates and manufacturer changes; you might need to reinstall them.
You'll likely need updated drivers for your new GPU. The HD 7770 drivers probably won't work directly with the R9 380, so you'll need separate drivers. Upgrading to W10 might require some driver changes as well. Reinstalling drivers is usually necessary during updates.