Is a single 32GB stick of RAM slower than two 16GB sticks?

Yes, technically a single stick runs in single-channel mode, which is slower than dual-channel. But for everyday tasks like web browsing, Office, and streaming, the difference is single-digit percentages and you won’t feel it. The real tradeoff is future-proofing: a single 32GB stick leaves an empty slot for an easy upgrade to 64GB later, while two 16GB sticks fill both slots. Unless you’re building a high-end gaming rig or workstation, a single 32GB stick is a perfectly fine choice.