Best PSU for AMD Ryzen 7 9700X and AMD Radeon RX 9070 XT
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AMD Radeon RX 9070 XT
Configuration Analysis
System Performance Assessment
This system, featuring a Ryzen 7 9700X and Radeon RX 9070 XT, is capable of delivering exceptional performance in demanding games at high resolutions (1440p and 4K) with ray tracing enabled. It will also excel in content creation tasks such as video editing, 3D rendering, and software development, offering a smooth and responsive experience.
Recommended Power Supplies
MSI MAG A650BE Gaming Power Supply – 80 Plus Bronze Certified 650W – Semi-Modular – Low Noise ATX PSU
CORSAIR CX650 80 Plus Bronze Non Modular Low-Noise ATX 650 Watt Power Supply – NA – Black
The CX650 provides ample wattage for your 9700X and RX 9070 XT, offering reliable Corsair power without breaking the bank.
Segotep 650W 80 Plus Gold Certified Non-Modular ATX Power Supply with 6+2 Pin Connectors PFC Protection and RoHS Compliance, 120mm Silent Fan Gaming PSU GN-650 Black
The Segotep 650W Gold is perfect! Plenty of clean power for your 9700X and RX 9070 XT, and the 80+ Gold efficiency is a plus.
Comparison Table
| Model | Wattage | Efficiency | Form Factor | Modularity | Price | Best For |
|---|---|---|---|---|---|---|
| MSI MAG A650BE Gaming Power Supply – 80 Plus Bronze Certified 650W – Semi-Modular – Low Noise ATX PSU | 650W | 80+ Gold | ATX | Non-Modular | $59.99 | Overall Value |
| CORSAIR CX650 80 Plus Bronze Non Modular Low-Noise ATX 650 Watt Power Supply – NA – Black | 650W | 80+ Gold | ATX | Non-Modular | $66.46 | Energy Efficiency |
| Segotep 650W 80 Plus Gold Certified Non-Modular ATX Power Supply with 6+2 Pin Connectors PFC Protection and RoHS Compliance, 120mm Silent Fan Gaming PSU GN-650 Black | 650W | 80+ Gold | ATX | Non-Modular | $54.99 | Energy Efficiency |
Why This Wattage?
Power Calculation
The recommended PSU wattage is calculated based on the total power draw of your CPU (AMD Ryzen 7 9700X) and GPU (AMD Radeon RX 9070 XT), plus approximately 100W for other components like motherboard, memory, and storage devices.
Extra Headroom
We add an additional 30% headroom to ensure optimal efficiency, handle power spikes, and allow for future upgrades. This ensures your system runs stable and your PSU operates in its optimal efficiency range.
Efficiency Standards
We recommend power supplies with 80 Plus certification, which represents higher energy efficiency and more reliable performance. Power supplies are most efficient at 50-60% load, so having adequate headroom is important.
Power Efficiency Tips
Enable AMD's Radeon Chill to dynamically regulate framerates in games, reducing GPU load and power consumption during less demanding scenes.
Utilize the Ryzen Master software to undervolt the CPU slightly, reducing power draw without significantly impacting performance.
Consider limiting the maximum frame rate in games through in-game settings or Radeon Adrenalin software to reduce unnecessary GPU load.
Special Installation Note
Ensure that the 8-pin (or split 4+4 pin) EPS connector from the PSU is securely connected to the CPU power socket on the motherboard, as the 9700X is a power-hungry CPU under load.
Usage Scenarios
AAA Gaming
This PC can handle the latest AAA games at high or ultra settings with smooth frame rates at 1440p and even 4K resolutions.
Video Editing
Effortlessly edit and render high-resolution videos, including 4K footage, with fast processing times and smooth playback.
Productivity Powerhouse
Run demanding applications, multitask efficiently, and handle large datasets for tasks like software development and data analysis.
Installation Tips
Position Properly
Most cases have a dedicated PSU bay at the bottom. Ensure the PSU fan is facing down if your case has bottom ventilation, allowing it to draw cool air from outside.
Cable Management
With modular PSUs, connect only the cables you need. Route cables behind the motherboard tray when possible for better airflow and cleaner appearance.
Proper Connections
Ensure all power connectors are fully seated and locked. The AMD Radeon RX 9070 XT will require dedicated PCIe power connectors from the PSU.
Test Before Completing
Before fully closing your case, connect the essential components and test that your system boots correctly with the new power supply.
The MSI MAG A650BE offers reliable 650W power for your Ryzen 7 9700X and RX 9070 XT, all with efficient 80+ Bronze certification.