What PSU Does Your GPU Need?

Data reviewed July 17, 2026 · Methodology

Pick your graphics card for its recommended power-supply wattage, minimum, and connector — with a live peak-draw estimate on each page.

Quick Summary · TL;DR

Most single-GPU gaming builds in 2026 need a 550-850W 80+ Gold PSU. High-end NVIDIA cards (RTX 40/50-series) should pair with an ATX 3.0/3.1 unit for the native 12V-2x6 connector and transient-spike rating.

PCIe power connector types used by graphics cards — Wattage is only half of PSU compatibility. Match the connector too: 6-pin, 8-pin (6+2), or 12VHPWR on recent high-end cards.

Frequently asked questions

How do I find the right PSU for my graphics card?

Pick your card from the list to see its recommended wattage, the realistic minimum, and the connector it uses. Each figure includes a transient-safe buffer so the supply runs cool and stable.

Why do newer GPUs need bigger power supplies?

Modern cards draw brief transient spikes far above their rated power, and pairing them with fast CPUs raises total system draw. A larger 80+ Gold, ATX 3.x unit absorbs those spikes safely.

Custom parts list? Use the full PSU Wattage Calculator.