Best PSU for AMD Ryzen 7 9800X3D and NVIDIA GeForce RTX 5070
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NVIDIA GeForce RTX 5070
Configuration Analysis
System Performance Assessment
This system will deliver exceptional performance in gaming and demanding applications. The Ryzen 9800X3D paired with the RTX 5070 will handle modern games at high resolutions and refresh rates with ease. Content creation tasks such as video editing and 3D rendering will also be significantly accelerated.
Recommended Power Supplies
Corsair CX-M Series, CX650M, Modular Power Supply, 80 Plus Bronze
ARESGAME AGV Series 650W Power Supply, 80 Plus Bronze Certified, Non Modular Power Supply, 5 Year Warranty
The ARESGAME 650W Bronze is a solid, reliable choice. It provides ample wattage for your 9800X3D and RTX 5070 with a good warranty for peace of mind.
Thermaltake Smart 700W 80+ White Certified PSU, Continuous Power with 120mm Ultra Quiet Fan, ATX 12V V2.3/EPS 12V Active PFC Power Supply PS-SPD-0700NPCWUS-W
The Thermaltake 700W provides ample power for your Ryzen 9800X3D and RTX 5070, offering reliable performance without breaking the bank.
Comparison Table
| Model | Wattage | Efficiency | Form Factor | Modularity | Price | Best For |
|---|---|---|---|---|---|---|
| Corsair CX-M Series, CX650M, Modular Power Supply, 80 Plus Bronze | 650W | 80+ Gold | ATX | Non-Modular | $64.99 | Overall Value |
| ARESGAME AGV Series 650W Power Supply, 80 Plus Bronze Certified, Non Modular Power Supply, 5 Year Warranty | 650W | 80+ Gold | ATX | Non-Modular | $46.99 | Energy Efficiency |
| Thermaltake Smart 700W 80+ White Certified PSU, Continuous Power with 120mm Ultra Quiet Fan, ATX 12V V2.3/EPS 12V Active PFC Power Supply PS-SPD-0700NPCWUS-W | 700W | 80+ White | ATX | Non-Modular | $54.99 | Budget Builds |
Why This Wattage?
Power Calculation
The recommended PSU wattage is calculated based on the total power draw of your CPU (AMD Ryzen 7 9800X3D) and GPU (NVIDIA GeForce RTX 5070), 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 Eco Mode or similar power-saving features in the BIOS to reduce CPU power consumption when not under full load.
Configure the NVIDIA GPU's power management settings in the NVIDIA Control Panel to 'Optimal Power' to balance performance and efficiency.
Consider undervolting the GPU slightly to reduce power draw without significantly impacting performance, improving overall efficiency.
Special Installation Note
Ensure the 8-pin (4+4) EPS CPU power connector is securely connected to the motherboard. The 9800X3D can draw significant power, and a loose connection can lead to instability or damage.
Usage Scenarios
AAA Gaming
This system can smoothly run the latest AAA games at high settings and resolutions, including ray tracing, with excellent frame rates.
Content Creation
Handles video editing, 3D modeling, and complex rendering tasks with ease, accelerating workflows for creators and artists.
AI Development
The GPU and CPU are capable of handling AI and machine learning tasks, allowing for model training and complex simulations.
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 NVIDIA GeForce RTX 5070 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 CX650M offers reliable 650W power with 80+ Bronze efficiency, perfectly supporting your Ryzen 7 and RTX 5070 for smooth gaming.