Seasonic Vertex GX-1200, 1200 Watts, 80 PLUS Gold, PCIe 5.1 Ready

The Seasonic Vertex GX-1200 power supply delivers uncompromising power for cutting-edge PC builds. Fully compliant with ATX 3.1 and PCIe 5.1 standards, it’s equipped with a 12V-2×6 connector to power the most demanding GPUs with up to 600W. Its 80 PLUS Gold certification ensures up to 90% efficiency, minimizing energy waste and heat generation.

Featuring fully modular braided cables for a clean build, a 135mm Fluid Dynamic Bearing (FDB) fan, and Digital Fan Control for optimal cooling and silent operation, the Vertex GX-1200 is designed for gamers, creators, and professionals requiring peak performance and reliability.

Key Features

• Wattage: 1200W continuous output, ideal for power-hungry gaming and workstation setups.
• Efficiency Rating: 80 PLUS Gold certified, delivering up to 90% efficiency under typical loads.
• Future-Ready Standards: ATX 3.1 and PCIe 5.1 compliant, including a 12V-2×6 connector for next-gen GPUs.
• Cooling System: 135mm Fluid Dynamic Bearing (FDB) fan with Digital Fan Control for efficient and quiet cooling.
• Fully Modular Design: Reduces cable clutter and simplifies installation for improved airflow.
• Advanced Protections: Equipped with OVP, OPP, SCP, UVP, OCP, and OTP for safety and stability.
• Micro Tolerance Load Regulation: Maintains voltage stability within 0.5% for consistent performance.
• Durability: Backed by a 12-year warranty, reflecting Seasonic’s commitment to quality.

Seasonic Vertex GX-1200 Power Supply Specifications

• Brand: Seasonic
• Model: Vertex GX-1200
• Wattage: 1200W continuous output
• Efficiency Certification: 80 PLUS Gold, Cybenetics Efficiency Gold
• Noise Certification: Cybenetics Noise Level A-
• Form Factor: ATX
• Input Voltage: Full range (100-240V AC)
• Input Frequency Range: 50-60Hz
• PFC: Active PFC
• Fan Size and Type: 135mm Fluid Dynamic Bearing (FDB) fan
• Fan Control: Digital Fan Control with silent and fanless modes
• Operating Temperature: 0-50°C
• Protections: OVP, OPP, SCP, UVP, OCP, OTP
• Cable Type: Fully modular braided cables
• Connectors:
  • Motherboard: 1 x 24-pin ATX (610mm)
  • CPU/EPS: 2 x 8-pin EPS12V (650mm each)
  • PCIe (8-pin): 3 x 8-pin PCIe (750mm each, separate cables)
  • PCIe 5.1: 1 x 12V-2×6 (12+4 pin, 700mm)
  • SATA: 10 x SATA (4 connectors across 4 cables, 550mm and 950mm)
  • Peripheral (Molex): 3 x 4-pin Molex (690mm shared cable)
• Dimensions: 160mm x 150mm x 86mm
• MTBF: 100,000 hours at 25°C (excluding fan)

Processor Compatibility

Designed to support high-performance CPUs such as Intel Core i9/i7 and AMD Ryzen 9/7, the Vertex GX-1200 ensures reliable operation during intense workloads and overclocking.

Graphics Card Compatibility

The Seasonic Vertex GX-1200 is purpose-built for high-performance graphics cards requiring substantial and stable power. Its 1200W output and PCIe 5.1 compliance (with 12V-2×6 connectors) ensure compatibility with the latest GPUs, including:

• NVIDIA GeForce RTX 40-Series: Fully supports RTX 4090, RTX 4080, and RTX 4070 Ti, delivering stable power for extreme gaming and rendering tasks.
• AMD Radeon RX 7000-Series: Easily handles power-hungry GPUs like the RX 7900 XTX, RX 7800 XT, and RX 7700 XT for ultra-smooth gameplay and creative workloads.
• Backward compatibility with older generations like RTX 30-Series, RX 6000-Series, and GTX cards, ensuring seamless integration for all build types.

This PSU’s 12V-2×6 connector delivers up to 600W to a single graphics card, supporting peak performance without voltage fluctuations or thermal throttling.

Motherboard Compatibility

Designed to power the most advanced systems, the Seasonic Vertex GX-1200 complies with the ATX 3.1 standard, making it compatible with:

• High-End AMD Boards: Full compatibility with X670E motherboards like the MSI MEG X670E GODLIKE and ASUS ROG STRIX X670E-E Gaming, ensuring peak performance for multi-core Ryzen processors.
• Intel Z790 Boards: Seamlessly supports Gigabyte Z790 AORUS ELITE AX and ASUS ROG STRIX Z790-A GAMING WIFI, powering Intel’s 13th-Gen Core i9 CPUs.
• Workstation Builds: Robust enough for boards like the TRX40 PRO WIFI, making it an excellent choice for demanding workloads.

Its dual 8-pin EPS connectors ensure stable power delivery to the CPU, even during heavy overclocking or intensive computing.

Energy Efficiency

80 PLUS Gold certification ensures up to 90% efficiency at typical loads, reducing energy costs and enhancing overall system performance.

Cooling and Noise Level

The 135mm FDB fan with Digital Fan Control offers advanced cooling and minimal noise. Its fanless mode under low to medium loads provides a silent computing experience.

Is the Seasonic Vertex GX-1200 for You?

The Seasonic Vertex GX-1200 is ideal for those seeking a powerful, future-proof PSU. With ATX 3.1 and PCIe 5.1 compliance, exceptional efficiency, and advanced cooling, it’s perfect for gamers, creators, and professionals.