What PSU do you need for a AMD Radeon RX 590?
The AMD Radeon RX 590 has a vendor-published board power (TGP/TBP) of about 225 W. Sizing a power supply from that figure and a typical companion system (a 125 W-class CPU plus standard ATX accessories, ~242 W), here is what we recommend.
Recommendations are planning estimates, not electrical or purchasing advice. The hardware figures behind them are vendor-published; your exact board-partner model and build can still differ.
Official peak power not found for the AMD Radeon RX 590. The manufacturer publishes no reference board-power figure for this card, so the wattage below is a best-effort estimate we have deliberately left unverified rather than invent a number. Confirm against your exact card's specifications before buying.
Recommended (comfortable)
650 W
Standard headroom for transient spikes and a little future room.
Minimum
550 W
Smallest quality PSU tier we would pair with this card in a typical build.
GPU board power
225 W
Vendor TGP/TBP — a conservative ceiling, not typical gaming draw.
Vendor-recommended PSU
—
Not recorded for this card; check the official product page.
Power connector
1× PCIe 8-pin. Use native PSU cables and confirm the layout on your exact board-partner model. See connector & ATX 3.x details →
Want a number for your exact CPU and parts? Open the full PSU Calculator with this GPU pre-selected →
Worth knowing
The 225 W shown is the figure commonly quoted for this card, but AMD has never published a board power for it, so we cannot stand behind it as a vendor number. There was no AMD reference design either — most partner cards use one 8-pin, some use 8+6. Check your card.
How to check this figure
AMD's specification database does list this card — name, launch date 2018-11-15, 36 compute units, 2304 stream processors — but leaves Typical Board Power, Minimum PSU Recommendation and Additional Power Connector empty. The RX 580 in the same database carries "185 W" and "500", so the blanks are AMD's, not a reading error. They are systematic too: every RX 500 card launched 2017-04-18 has values, and every 2018 refresh (540X, 550X, 560X, 570X, 580X and this card) has none.
Board-power source: No AMD-published board power or PSU figure for this card. Last updated: 2026-07-22.
Frequently asked questions
What size PSU do I need for a AMD Radeon RX 590?
For a typical build that pairs the AMD Radeon RX 590 (about 225 W board power) with a 125 W-class CPU and standard accessories, plan for at least a 550 W power supply. A 650 W unit gives comfortable headroom for transient spikes and future upgrades. These are estimates — verify against your exact parts.
How much power does the AMD Radeon RX 590 draw?
Its vendor-published board power (TGP/TBP) is about 225 W. That is a conservative ceiling used for PSU sizing, not the typical draw you would see while gaming.