8GB vs 16GB RAM upgrade: 8GB stick wins for most people

Adding an 8GB stick keeps dual-channel mode, giving better everyday performance for less money. With 8GB soldered, adding 8GB gives 16GB total in dual-channel, while a 16GB stick gives 24GB but only the first 8GB runs in dual-channel—the rest is slower single-channel. Unless you need over 16GB for huge datasets or multiple VMs, the 8GB upgrade is cheaper and faster for daily tasks.