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AMD lists the Radeon RX 570 (OEM) at 150 W typical desktop board power and a 450 W minimum PSU recommendation; its RX 580 specifications list 185 W and 500 W, respectively. These are different measurements: the first describes typical graphics-card power, while the second is guidance for the power supply serving the whole PC. Check the exact card model’s specifications and PCIe power connector before choosing or reusing a PSU.
RX 570 vs. RX 580 power and PSU recommendations
| Card reference | Listed card power | PSU recommendation | Connector and scope |
|---|---|---|---|
| AMD Radeon RX 570 (OEM) | 150 W typical desktop board power | 450 W minimum | AMD’s specification is for the OEM model; connector details depend on the specific card. AMD RX 570 specifications |
| AMD Radeon RX 580 | 185 W typical desktop board power | 500 W minimum | Connector details depend on the specific card. AMD RX 580 specifications |
| MSI RX 570 Gaming 4G | 120 W power consumption | 450 W recommended | One 8-pin connector; this applies to this MSI model. MSI RX 570 Gaming 4G specifications |
| MSI RX 580 8G | 185 W power consumption | 500 W recommended | One 8-pin connector; this applies to this MSI model. MSI RX 580 8G specifications |
AMD’s listed typical board-power figures differ by 35 W (185 W minus 150 W). That is a comparison of the specifications, not a measured difference in every game or between every pair of partner cards. AMD’s support pages list April 18, 2017, as the launch date for both references.
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What the wattage figures mean
Card power is not PSU capacity
A board-power or card-power figure describes the graphics card, not the wattage the system’s PSU must provide. The 450 W and 500 W figures are manufacturer recommendations for PSU capacity for a system using the card; they do not mean that the GPU itself draws that much power.
Why RX 570 specifications can differ
AMD lists 150 W typical desktop board power for the RX 570 (OEM), while MSI lists 120 W for its RX 570 Gaming 4G. These are specifications for different product references, and the figures should not be treated as interchangeable or as evidence of a universal RX 570 power draw. MSI notes that specifications can vary by model and market.
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What PSU wattage should I get for an RX 570 or RX 580?
Use the recommendation for the exact card as your starting point: AMD’s RX 570 (OEM) page specifies a 450 W minimum, and its RX 580 page specifies 500 W minimum. The cited MSI RX 570 Gaming 4G recommends 450 W; the MSI RX 580 8G recommends 500 W. These recommendations are not a guarantee that any PSU of that labeled capacity will suit every system. The cited specifications do not establish a universal sizing formula for different CPUs, drives, or other components.
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- Identify the exact graphics card. Check the maker, full model name, and market version rather than relying only on “RX 570” or “RX 580.”
- Read that card’s PSU guidance. Follow the card maker’s recommendation; do not substitute a reference figure for a different board without checking.
- Verify the PCIe power connector. Confirm that the PSU has the connector or connectors required by the card. The cited MSI Gaming 4G and MSI RX 580 8G each specify one 8-pin connector; that does not establish the connector for every card in either GPU family.
- Consider the whole PC. Check whether the PSU is suitable for the rest of the system as well as the graphics card. The model-specific wattage recommendation alone does not assess every system configuration.
Before reusing or buying a PSU
- Match the PSU capacity guidance to the exact card’s specification, not just the GPU family name.
- Check that the PSU has the required PCIe power lead; do not assume a connector based on another brand’s version of the card.
- Account for the complete PC, since a card-maker recommendation is system guidance rather than an individual component-by-component calculation.
- If specifications conflict, treat the exact card manufacturer’s listing as the relevant reference for that board and confirm its model and market version.
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