As the next-generation flagship graphics card, the RTX 5080 will see a significant upgrade in performance, accompanied by increased power consumption. Based on the power trends of previous NVIDIA graphics cards and ATX 3.1 standard designs, the typical power consumption of the RTX 5080 is expected to range from 350W to 450W, with peak power possibly exceeding 500W. This means the power supply must meet the following core requirements:

Power Reserve and 80 Plus Certification
The overall system power consumption (CPU + graphics card + other components) should leave a 20%-30% redundancy. For setups with i9-class CPUs and multiple storage devices, the recommended PSU capacity is 850W to 1300W.
80 Plus Gold/Platinum certification is crucial: For example, an 80 Plus Platinum PSU achieves over 92% efficiency under typical loads, reducing heat generation and electricity costs while minimizing stability risks during long-term high-load operation.
ATX 3.1 and PCIe 5.1 Interface Compatibility
The RTX 5080 will standard with a 16-pin PCIe 5.1 interface (12V-2x6), requiring the PSU to natively support the ATX 3.1 standard to ensure stable output for instantaneous peak power (e.g., NVIDIA's 12VHPWR interface requirements).
Traditional PCIe 8-pin interfaces may fail to meet the demand; prioritize PSUs with native PCIe 5.1 connectors.
Cooling and Reliability Design
High-end graphics cards generate significant heat, so the PSU should feature intelligent temperature-controlled fans (e.g., FDB liquid bearing fans) to maintain low noise and efficient cooling under high loads.
Configurations like Japanese capacitors and LLC+DC-DC circuits enhance PSU stability, preventing voltage fluctuations from affecting the graphics card's lifespan.
From Gamemax's official product line, the following models are deeply optimized for RTX 5080 requirements:
Core Advantages:
80 Plus Platinum certification with over 92% efficiency under typical loads, supporting 1300W full-rated output to provide ample redundancy for RTX 5080 + top-tier CPU combinations.
Native support for ATX 3.1 and PCIe 5.1, equipped with 12V-2x6 connectors to directly adapt to the RTX 5080's 16-pin interface, reducing conversion losses.
Adaptive ARGB fan + intelligent temperature control, supporting motherboard lighting synchronization for both cooling and aesthetic appeal.
LLC+DC-DC circuit design with Japanese main capacitors reduces ripple noise, ensuring stable operation of high-frequency hardware.
Application Scenarios: Extreme performance desktops, multi-GPU workstations, 4K/8K gaming and rendering platforms.

Core Advantages:
80 Plus Gold certification with over 90% efficiency under typical loads; 1250W power meets the needs of RTX 5080 + high-end CPU combinations.
ATX 3.1 and PCIe 5.1 ready, with native 12V-2x6 interfaces supporting direct connection to RTX 40/50 series graphics cards. The MPS1213 chip optimizes the resonant circuit for enhanced energy efficiency.
Fully modular design reduces redundant cables, paired with an FDB silent fan, ideal for users seeking a clean chassis and low noise.
Premium durability configurations (e.g., all-solid capacitors) support 10+ years of long-term use.
Application Scenarios: High-end gaming desktops, content creation platforms, small-to-medium servers.
Core Advantages:
80 Plus Gold certification with 90%+ efficiency; 1050W power suits RTX 5080 + mid-to-high-end CPU (e.g., Ryzen 7/i7) combinations with 20% redundancy reserved.
ATX 3.1 and PCIe 5.1 support, with native 12V-2x6 interfaces compatible with next-gen graphics card power requirements.
140mm ARGB fan supports motherboard synchronization, and the fully modular design simplifies cable management, appealing to PC builders focused on aesthetics.
LLC+DC-DC architecture with single +12V high-current output stably drives high-power hardware.
Application Scenarios: 2K/4K gaming desktops, light rendering platforms, mainstream high-end builds.
Power Calculation Formula:
Graphics card power (450W) + CPU power (200W) + other components (150W) = 800W. It is recommended to choose an 850W+ PSU (with 20% redundancy).
Interface Compatibility Check:
Verify whether the PSU is labeled as supporting "ATX 3.1" or "PCIe 5.1" and whether it is equipped with a 16-pin 12V-2x6 connector (non-adapter solution).
Modular Design and Cooling:
Fully modular PSUs reduce cable clutter in the chassis, improving heat dissipation; FDB/hydrodynamic bearing fans offer longer lifespan and lower noise than ordinary fans.
Protection Functions and Certifications:
Prioritize models with OCP (Over Current Protection), OVP (Over Voltage Protection), and SCP (Short Circuit Protection); higher 80 Plus certification levels indicate better energy efficiency and stability.
The launch of the RTX 5080 will drive PC power supplies into the new era of ATX 3.1 and PCIe 5.1. Gamemax's RGB PRO and GX PRO series PSUs, with their high-power output, top-tier energy efficiency certifications, and native interface support, emerge as ideal choices for next-gen graphics cards. Whether the extreme-performance 1300W Platinum flagship or the cost-balanced 1050W Gold model, both provide stable and efficient power support for RTX 5080 platforms while leaving room for future hardware upgrades.
Purchase Recommendation: For sufficient budgets, prioritize the RGB PRO 1300P or GX PRO 1250G to address the RTX 5080's peak power and long-term stability needs; mainstream users may consider the RGB PRO 1050G to balance performance and cost.
RGB 1050G PRO 1050W 80+ Gold ATX3.1 Power Supply with Adaptive Fan & ARGB SYNC
• 80 Plus Gold Efficiency: Delivers 90%+ efficiency under typical loads, cutting power use and noise for dependable performance.
• ATX3.1 & PCIe5.1 Support: Native 12V-2x6 connector ensures seamless power to RTX 40/50 GPUs, optimizing delivery and reducing loss.
• Adaptive Fan Control: 14CM fan auto-adjusts speed based on load, balancing energy efficiency with quiet operation.
• High-Quality Components: Japanese 105°C and solid capacitors guarantee durability, stability, and reliability for intensive tasks.
• Customizable RGB Lighting: 25 lighting modes with memory and ARGB SYNC support, enabling personalized and synchronized visual effects.
GX PRO 1250G 80 Plus Gold Modular Power Supply: ATX3.1 Ready, Silent Cooling, & Premium Durability
• 80 Plus Gold Efficiency & Quiet Operation: Achieves 90% efficiency under typical loads with APFC+LLC+DC-DC design, minimizing power waste and noise.
• Premium Durability & Reliability: Built with Japanese 105°C capacitors and solid capacitors for long-term stability and performance.
• ATX3.1 & PCIe5.1 Ready: Features a native 12V-2x6 connector for seamless RTX 40/50 GPU compatibility and efficient power delivery.
• Advanced Thermal Management: 13.5cm FDB fan with intelligent temperature control ensures quiet cooling and optimal heat dissipation.
• Modular Design & Robust Protection: Fully modular layout with dual-stage EMI filtering and NTC thermistor safeguards against surges, while gold-plated cables ensure durable, high-conductivity connections.