Besides the amount of memory, a couple of other important, but not critical, questions to ask is what clock speed and what mode. Modern CPUs let you run RAM in sets to increase the memory bandwidth.  More memory bandwidth immediately helps laptops that are running integrated graphics, but the conventional wisdom has long been that discrete GPUs in laptops don’t benefit as much because they have their own dedicated, much faster GDDR5 RAM to use. That’s typically the case, but the performance of today’s GPUs and CPUs can make this conventional wisdom wrong.  Gaming performance is often about a balance between the CPU and the GPU, and how graphically intensive a game is. With games that are graphically intensive, the GPU is the primary bottleneck on performance. Play a game that isn’t graphically intense, though, and the CPU can rapidly become the bottleneck on performance. With the power of today’s GPUs, a lot of games, especially at a sedate resolution of 1920x1080, have shifted more performance to the CPU. The reason we’re talking about this now is if you rob the CPU of memory bandwidth, even a decently fast one, you can take a sizable hit in gaming performance. The basic lesson is you should opt for dual-channel memory bandwidth configurations when possible. On a laptop spec sheet, you typically would see this expressed as “dual-channel” or “2 x 8” to indicate that two 8GB memory modules were used in a laptop. Some laptop makers will express memory in clock speed, so you’ll see “DDR4/2,133 or DDR4/2,400.” While a higher memory clock does increase memory bandwidth, the impact isn’t quite as great as going from dual-channel to single-channel mode.