Best PSU for AMD Ryzen 7 7800X3D and NVIDIA GeForce RTX 4070 Ti SUPER
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NVIDIA GeForce RTX 4070 Ti SUPER
Configuration Analysis
System Performance Assessment
This system offers excellent performance for gaming at 1440p and high refresh rates, and can handle 4K gaming with some settings adjustments. The Ryzen 7 7800X3D is a top-tier gaming CPU, and the RTX 4070 Ti SUPER delivers impressive graphical horsepower. It's also well-suited for content creation tasks like video editing and streaming.
Recommended Power Supplies
CORSAIR RM750e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2×6 Cable – ATX 3.1 & PCIe 5.1 Compliant, Cybenetics Gold Efficiency, 105°C-Rated Capacitors, Modern Standby Mode – Black
ARESGAME AGV Series 750W Power Supply, 80 Plus Bronze Certified, Semi Modular Power Supply, 5 Year Warranty
The ARESGAME 750W Bronze is perfect! Ample power for your 7800X3D/4070 Ti SUPER, semi-modular for cleaner build, and reliable with a 5-year warranty.
EVGA 750 N1, 750W, 2 Year Warranty, Power Supply 100-N1-0750-L1
The EVGA 750 N1 provides ample wattage for your 7800X3D/4070 Ti SUPER build, delivering stable power at an affordable price.
Comparison Table
| Model | Wattage | Efficiency | Form Factor | Modularity | Price | Best For |
|---|---|---|---|---|---|---|
| CORSAIR RM750e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2×6 Cable – ATX 3.1 & PCIe 5.1 Compliant, Cybenetics Gold Efficiency, 105°C-Rated Capacitors, Modern Standby Mode – Black | 750W | 80+ Gold | ATX | Full-Modular | $99.99 | Overall Value |
| ARESGAME AGV Series 750W Power Supply, 80 Plus Bronze Certified, Semi Modular Power Supply, 5 Year Warranty | 750W | 80+ Gold | ATX | Semi-Modular | $64.99 | Energy Efficiency |
| EVGA 750 N1, 750W, 2 Year Warranty, Power Supply 100-N1-0750-L1 | 750W | 80+ Gold | ATX | Non-Modular | $59.99 | 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 7800X3D) and GPU (NVIDIA GeForce RTX 4070 Ti SUPER), 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 undervolt the CPU slightly to reduce power consumption without significant performance loss.
Utilize NVIDIA's GeForce Experience to optimize game settings for balanced performance and power efficiency.
Consider setting a frame rate cap in games to prevent the GPU from running at 100% unnecessarily.
Special Installation Note
Ensure the 12V-2×6 cable from the Corsair RM750e is firmly connected to the RTX 4070 Ti SUPER to provide stable power delivery and avoid potential performance issues.
Usage Scenarios
AAA Gaming
This rig can smoothly play the latest AAA titles at high refresh rates and resolutions, with ray tracing enabled.
Content Creation
Excellent for video editing, streaming, and 3D modeling, taking advantage of the powerful CPU and GPU acceleration.
AI/ML Development
Capable of running local AI/ML models and experiments thanks to the powerful GPU and CPU, speeding up development workflows.
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 4070 Ti SUPER 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 RM750e is perfect! Its ATX 3.1 compliance and 12V-2×6 cable are future-proofed for your 4070 Ti SUPER, and 750W is plenty for the 7800X3D.