With the release of DDR4, it is understandable to wonder whether you need to upgrade your DRR3 RAM. While this may eventually be a sensible idea given that it is the more future proof of the two, this is not something you necessarily need to worry about at the moment.
DDR3 is still a fantastic option to choose for gaming, it is also far cheaper in comparison to the newer DDR4. The most important thing to remember when choosing DDR3 RAM is that it is a dual channel. If it is not dual channel the RAM will not be as good for gaming.
DDR3 is quick and responsive enough to work well for gaming. It is worth remembering that the maximum memory size for DDR3 is 16 GB. While this is the optimum amount needed for gaming, DDR3 RAM cannot be increased, whereas DDR4 does not have any limitations.
Over time, there is the potential that 16 GB of RAM may not be enough, especially if games begin to increase in their demand on the PC. Given this, over time DDR3 may not be the best option, but this is not guaranteed to happen.
If you are running large software or multiple different programs alongside gaming, you may benefit from a higher amount of GB. However, for gaming purposes DDR3 is still a great option.