Bitcoin Gold difference from Bitcoin?

One of the improvements with respect to Bitcoin is that Bitcoin Gold aims to be a safer cryptocurrency, using a unique address format for the reproduction of coins that protects users from hacking or other incidents.

Regarding security issues, the “Replay Protection” function of Bitcoin Gold protects user deposits, preventing their involuntary spending (a novelty that Bitcoin does not have).

The mining process focuses on a change of algorithm, since Bitcoin Gold uses a new PoW that facilitates access to mining to all users who have a powerful graphics processor, instead of just offering this possibility to ASICs. Thus, decentralization of the process is encouraged and a more fair and effective distribution of BTGs is generated.