Since you are looking for a laptop mainly for gaming, it will be better to get one with good and expandable RAM with an additional SSD, HDD, or both. For standard gaming sessions, you should prefer to get a laptop with at least 16 GB RAM. However, you can also go for laptops with a lesser RAM capacity if you are aware of the fall in the price of memory in the past few years. In other words, if you get a laptop with expandable RAM, you can upgrade it anytime you need it and use it as much as you like. Also, remember that you will be paying a higher amount for a gaming laptop with a larger RAM, but it will still be worth it in the long run.