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For an RX 570, start with AMD’s 450 W minimum PSU recommendation, then check the exact card model’s connector and size the PSU for the whole PC. AMD lists the RX 570 at 150 W typical desktop board power; neither figure guarantees that every 450 W power supply will suit every system.
How many watts does an RX 570 need?
AMD’s current RX 570 specifications list 150 W typical desktop board power and a 450 W minimum PSU recommendation (AMD RX 570 specifications). The 150 W figure describes the graphics card, while the 450 W recommendation is a baseline for choosing a power supply—not a calculation tailored to your complete PC.
Use the card maker’s recommendation for your exact model when available, and account for the processor, drives, fans, other components, and any overclocking. A PSU’s printed wattage alone does not establish that it can adequately power a particular system; its condition and design matter too.
Why the exact RX 570 model matters
Board-partner cards can list different power figures even when they share the RX 570 name. MSI recommends a 450 W PSU for both of these examples, but lists different power consumption:
#1 Best Overall
- 80 PLUS GOLD CERTIFIED
- 10-year limited warranty, guaranteeing long term reliable operation
- Fully modular design
- ATX 3.1 & PCIE 5.1
| Card model | MSI-listed power consumption | MSI recommended PSU | Power connector |
|---|---|---|---|
| RX 570 ARMOR 4G OC | 150 W | 450 W | One 8-pin |
| RX 570 GAMING 4G | 120 W | 450 W | One 8-pin |
These are specifications for those MSI models, not a universal rating for every RX 570. See the MSI RX 570 ARMOR 4G OC specifications and MSI RX 570 GAMING 4G specifications.
Which power connector does your RX 570 use?
There is no single connector to assume for every RX 570. MSI specifies one 8-pin connector on both cards in the table, but your own card may differ. Find its full model name on the card, packaging, or purchase record, then check the manufacturer’s specification page or inspect the card’s power socket.
Rank #2
- Fully Modular PSU: Reliable and efficient, low-noise power supply with fully modular cabling, so you only have to connect the cables your system build needs.
- Intel ATX 3.1 Certified: Compliant with the ATX 3.1 power standard, supporting PCIe 5.1 platform withstands 2x transient power excursions from the GPU.
- Keeps Quiet: A 120mm rifle bearing fan with a specially calculated fan curve keeps fan noise down, even when operating at full load.
- 105°C-Rated Capacitors: Delivers steady, reliable power and dependable electrical performance.
- Modern Standby Compatible: Extremely fast wake-from-sleep times and better low-load efficiency.
Once you know the socket, verify that the PSU has the required native PCIe power cable. A PCIe 6+2-pin plug can be joined to make an 8-pin graphics-card plug. Do not mistake a CPU/EPS cable for a PCIe graphics-card cable. ASUS identifies 6+2-pin/8-pin cables for graphics cards and cautions against forcing connectors into sockets (ASUS guidance on power cables).
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If the plug does not fit easily, stop and check that you have the correct cable and orientation. Do not force it. Do not treat SATA-to-PCIe or Molex-to-PCIe adapters as a routine fix: whether an adapter is suitable depends on the specific PSU, cable, and card, and the available manufacturer guidance does not establish one as safe for an unknown setup. If the PSU lacks the needed native cable, choose a suitable PSU instead.
Rank #3
- High Efficiency & Stability: Rated 80 Plus Bronze certified (≥85% efficiency) with rock-solid voltage regulation for reliable PC performance under load.
- Whisper-Quiet Cooling: Engineered with a silent, durable 120mm fan that delivers effective cooling while minimizing noise disruption during intense gaming sessions.
- Versatile Powerhouse: Semi-modular design and 750W capacity (ATX standard) offers flexible cable management and robust wattage headroom for demanding gaming rigs & upgrade paths.
- Comprehensive Safety Armor: Full suite of protections including OVP, UVP, OPP, and SCP guards your components against electrical faults and surges.
- Clean Aesthetics: Features sleek all-black cables - no garish red/yellow "ketchup & mustard" colors – ensuring a sophisticated build look inside your case.
How to judge PSU quality beyond the wattage label
An 80 PLUS badge certifies energy efficiency; it is not, on its own, a complete measure of electrical performance, reliability, protection features, warranty, or system suitability. MSI describes 80 PLUS as a PSU energy-efficiency certification (MSI explanation of 80 PLUS). Consider efficiency as one separate factor rather than using the badge as a shortcut for overall quality.
Check the exact PSU model’s documentation for its listed protections. MSI’s selection guide includes these common abbreviations (MSI PSU selection guide):
Rank #4
- 80 Plus Bronze certified for high efficiency
- 120mm Low Noise Fan
- Industrial level protection with OVP,OCP,OPP,OTP, SCP
- DC-DC Circuit Design
- Active PFC design
- OVP: over-voltage protection
- OCP: over-current protection
- OPP: over-power protection
- OTP: over-temperature protection
- SCP: short-circuit protection
A feature list is useful to check, but marketing claims alone do not independently demonstrate a PSU’s build quality or performance. For additional evidence, look for credible, independent testing of the exact model—not just another unit from the same product family. Corsair’s explanation describes protections such as OVP and SCP; any statements about product coverage on that page apply to Corsair products (Corsair PSU protection explanation).
Checklist before reusing or buying a PSU
- Capacity: Meet the recommendation for your exact card and allow for the complete system, not only the GPU.
- Connector: Match the card’s socket and confirm the PSU has the correct native PCIe cable and enough plugs.
- Model evidence: Check the exact PSU’s documented protections and seek independent model-specific electrical testing where available.
- Condition and fit: Consider the unit’s age and condition if reusing it, its warranty, and whether it physically fits your case.
- Efficiency: Treat an efficiency certification as information about energy conversion, not as proof of all-around quality.
For a purchase search, “450W ATX power supply with PCIe 6+2 pin” can help surface the product category, but it is not a model recommendation. Verify your PC’s total requirements, exact GPU plug, PSU quality, and case fit before buying.
Quick Recap
Best Value
- 80 PLUS Gold Certified: Achieves up to 90% energy efficiency, reducing power waste and operating costs while maintaining stable performance
- ATX 3.1 & PCIe 5.1 Compliant: Ready for next-generation components with improved power delivery standards and compatibility
- Native 12V-2x6 Connector: Dual-color design supports up to 450W power delivery for modern high-performance graphics cards
- Quiet 120mm Cooling Fan: Optimized for low-noise operation while providing effective thermal management
- Reliable Power Output: 750W capacity handles mid-range to high-end system configurations with stability
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
