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Most server sizing goes wrong in one of two directions: paying for cores that idle at 3% for a year, or discovering at launch that the database's hot set doesn't fit in RAM. Both mistakes come from skipping the same step: sizing from the workload instead of from a price list. This guide gives you the method (baseline, headroom, growth), the per-workload heuristics for CPU, RAM, storage and bandwidth, and the honest answer to when you should scale up versus out.

A game server is a single-threaded simulation loop on a fixed clock, so it lives or dies on per-core speed and steady timing, not core count. A shared VPS puts a hypervisor's scheduler between that loop and the CPU, and the jitter shows up as missed ticks. Bare metal removes the layer. This pillar covers bare metal against a VPS and managed game panels, why clocks beat cores, real RAM figures for Minecraft, Rust, ARK, Palworld, Valheim and CS2, storage and DDoS reality, running Pterodactyl or its Pelican fork yourself, and the honest cases where a VPS is still the right call.