Best PSU for AMD Ryzen 7 9800X3D and NVIDIA GeForce RTX 4070 Ti
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NVIDIA GeForce RTX 4070 Ti
Configuration Analysis
System Performance Assessment
This system delivers excellent performance for gaming at 1440p and even 4K resolutions. The Ryzen 7 9800X3D, paired with the RTX 4070 Ti, will handle most modern games with high or ultra settings. It's also well-suited for demanding creative tasks like video editing and 3D rendering, offering a smooth and responsive experience.
Recommended Power Supplies
MSI MAG A750GL PCIE5, Fully Modular Compact Gaming 750W Power Supply, 80+ Gold, ATX 3.1 & PCIe 5.1 Ready, Native Dual-Color 12V-2×6 Cable, 10 Year Warranty
Thermaltake Toughpower GT 750W ATX 3.1 Standard Power Supply; 80 Plus Gold Efficiency; Smart Zero Fan; Native 300W PCIe 5.1 Connector; PS-TPT-0750FNFAGU-3; 5 Year Warranty
The Thermaltake 750W Gold's native PCIe 5.1 connector and ample wattage are perfect for your 9800X3D/4070 Ti combo, ensuring stable power delivery.
CORSAIR CX750M 80 Plus Bronze Semi-Modular Low-Noise ATX 750 Watt Power Supply – NA – Black
The CX750M provides ample power for your 9800X3D and 4070 Ti, and Corsair's reliability gives you peace of mind.
Comparison Table
| Model | Wattage | Efficiency | Form Factor | Modularity | Price | Best For |
|---|---|---|---|---|---|---|
| MSI MAG A750GL PCIE5, Fully Modular Compact Gaming 750W Power Supply, 80+ Gold, ATX 3.1 & PCIe 5.1 Ready, Native Dual-Color 12V-2×6 Cable, 10 Year Warranty | 750W | 80+ Gold | ATX | Full-Modular | $87.99 | Overall Value |
| Thermaltake Toughpower GT 750W ATX 3.1 Standard Power Supply; 80 Plus Gold Efficiency; Smart Zero Fan; Native 300W PCIe 5.1 Connector; PS-TPT-0750FNFAGU-3; 5 Year Warranty | 750W | 80+ Gold | ATX | Full-Modular | $75.98 | Energy Efficiency |
| CORSAIR CX750M 80 Plus Bronze Semi-Modular Low-Noise ATX 750 Watt Power Supply – NA – Black | 750W | 80+ Gold | ATX | Non-Modular | $79.99 | 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 9800X3D) and GPU (NVIDIA GeForce RTX 4070 Ti), 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
Utilize the NVIDIA GeForce Experience software to optimize game settings for the best balance between performance and power consumption.
Monitor CPU and GPU temperatures and adjust fan curves in the BIOS or using software like MSI Afterburner to prevent thermal throttling.
Enable AMD's Eco Mode in the BIOS to reduce CPU TDP and power consumption when maximum performance isn't required.
Special Installation Note
Ensure the 12V-2×6 (or 12VHPWR) connector from the PSU is securely plugged into the RTX 4070 Ti. The MSI PSU has a native dual-color cable, which is a plus, but double-check the connection to avoid issues.
Usage Scenarios
AAA Gaming
Effortlessly handles the latest AAA titles at high settings and resolutions, delivering smooth frame rates and immersive visuals.
Content Creation
Perfect for video editing, 3D rendering, and graphic design, enabling fast processing and seamless workflow with demanding software.
Demanding Multitasking
Handles complex simulations, data analysis, and running multiple virtual machines concurrently without performance bottlenecks or slowdowns.
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 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 A750GL is perfect! Its ATX 3.1 and PCIe 5.1 support future-proofs your 4070 Ti and Ryzen 7 combo, plus the 10-year warranty is reassuring.