Best PSU for Intel Core i7-12700K 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, with high refresh rates in most titles. The i7-12700K and RTX 4070 Ti combination allows for smooth content creation, video editing, and demanding applications. Expect responsive multitasking and a premium user experience.
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
Thermaltake GF1 (2024) Fully Modular ATX 750W Power Supply – 80 Plus Gold – Ultra Quiet – Zero RPM, PS-TPD-0750FNFAGU-P
The Thermaltake GF1 750W Gold is perfect: reliable power for your i7 and 4070 Ti, plus the modular design keeps things clean.
ARESGAME AGV Series 750W Power Supply, 80 Plus Bronze Certified, Semi Modular Power Supply, 5 Year Warranty
The ARESGAME 750W Bronze is perfect: plenty of wattage for your 4070 Ti and 12700K, with semi-modular cables for cleaner build.
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 |
| Thermaltake GF1 (2024) Fully Modular ATX 750W Power Supply – 80 Plus Gold – Ultra Quiet – Zero RPM, PS-TPD-0750FNFAGU-P | 750W | 80+ Gold | ATX | Full-Modular | $81.99 | Energy Efficiency |
| ARESGAME AGV Series 750W Power Supply, 80 Plus Bronze Certified, Semi Modular Power Supply, 5 Year Warranty | 750W | 80+ Gold | ATX | Semi-Modular | $54.9 | Energy Efficiency |
Why This Wattage?
Power Calculation
The recommended PSU wattage is calculated based on the total power draw of your CPU (Intel Core i7-12700K) 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
Enable power saving features in Windows and NVIDIA Control Panel to reduce power consumption during idle or low-usage periods.
Consider undervolting the RTX 4070 Ti to reduce power draw without significantly impacting performance. Experiment with voltage curves.
Monitor system temperatures and ensure adequate cooling to prevent thermal throttling, which can lead to increased power consumption.
Special Installation Note
Connect the 12VHPWR (12V-2×6) cable directly from the PSU to the RTX 4070 Ti, ensuring it's fully seated and clicked into place to avoid potential issues. Avoid using adapters if possible.
Usage Scenarios
AAA Gaming
This PC can play the latest AAA games at high settings (1440p or even 4K) with smooth frame rates and ray tracing.
Video Editing
Handles 4K video editing with ease, including rendering, color correction, and motion graphics without significant lag or delays.
AI Development
Capable of running and training moderate-sized AI models, benefiting from the CPU's cores and the GPU's CUDA cores.
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 RM750e offers ample power for your i7 and 4070 Ti, with headroom and future-proof ATX 3.1 compliance. The 12V-2×6 cable is perfect for your GPU!