The Apu is strong enough to handle office work? Whatever that is. As far as gpu it depends on YOU are you looking for long term upgradability knowing most of amds chips use AM4 socket, which in the future you can upgrade your cpu to an r7 or r9. As a discrete gpu tho, I'd recommend any super series card for NVidia as it's most optimized rn. The hassle of the 5000 series from team red with their instability issues is not worth it imo. If you wanna look into used cards too in Ebay it might be worth a shot, just look for a seller that does retuens i see plenty if sellers with uard 1080 tis for around $400 us