Stable Power Delivery for RTX 40-Series GPUs

So, you've just dropped some serious ZAR on a shiny new NVIDIA RTX 40-series graphics card. Lekker! Before you dive into max-settings gaming, there’s a critical component you can't ignore: the power supply. Providing stable power delivery for your RTX 40-series GPU isn't just a suggestion… it's the foundation for performance, preventing crashes, and protecting your high-end hardware from unexpected failure. Let's get your rig sorted. ⚡

Gamdias Helios M1-850B 850W Power Supply / Meet 80 PLUS Bronze Efficiency / Support C6/C7 power states / HELIOSM1-850B

R999.00In Stock

Gamdias HELIOS E1-750 Power Supply - 750W / 80 PLUS Certified / Flat Black Cable / Compatible with ATX12V v2.53 / HELIOSE1-750

R799.00In Stock

Gamdias Helios E1-600 600W Power Supply / Meet 80 % Efficiency / Support C6 / C7 Power State / Helios E1-600

R849.00In Stock

MSI MEG Ai1300P PCIE 5 Gaming Power Supply - 1300W / ATX 3.1 and PCIe 5.1 Ready / Full Modular / 80 Plus Platinum Certified / 306-7ZP4A25-CE0

R6999.00In Stock

Cooler Master Elite NEX N700 700W 230V Power Supply / 75% efficiency / Excellent temperature resistance / MPW-7001-ACBN-BEU

R1199.00In Stock

MSI MAG A1000GL PCIE5 5 Gaming Power Supply - 1000W / ATX 3.1 and PCIe 5.1 Ready / Full Modular / 80 Plus Gold Certified / 306-7ZP9B42-CE0

R3499.00In Stock

Why Your Old PSU Might Not Cut It

Modern GPUs, especially the power-hungry RTX 4080 and 4090, are famous for something called "transient power spikes." These are split-second, massive demands for power that can far exceed the card's average wattage. An older or lower-quality Power Supply Unit simply can't handle these surges.

The result? You might experience:

• Random shutdowns in the middle of an intense firefight.
• Frustrating system instability and blue screens.
• In the worst-case scenario, potential damage to your components.

Ensuring consistent and stable power delivery for an RTX 40-series GPU is the best insurance policy for your entire PC build.

The ATX 3.0 Standard: Built for Modern Power Demands

To tackle these power spikes, the industry introduced the ATX 3.0 standard. PSUs built on this platform are specifically designed to handle huge, brief power excursions—up to 2x their total rated wattage for tiny fractions of a second. They also often come with the new 12VHPWR connector, providing up to 600W over a single cable, which is essential for top-tier cards.

While you don't strictly need an ATX 3.0 PSU (adapters exist), choosing one provides the most robust and reliable foundation for a new build. You can find a wide range of quality Power Supply Units that are ready for the demands of modern gaming.

Gamdias KRATOS E1-600 RGB 600W Power Supply / Meet 80% Efficiency / 30 built-in lighting effects / Addressable RGB / KRATOS-E1-600

R949.00In Stock

Corsair RMe Series™ RM1000e ATX Power Supply - White (WW) / 1000watts / Fully Modular / ATX 3.1 Certified / 80 Plus Gold Certified / Low Noise / CP-9020294-WW

R4299.00In Stock

Cooler Master X Mighty 2000 2000W 240V Power Supply / Infineon CoolMOS for high efficiency / Silent zero-RPM cooling fan / Dual 12V-2x6 connectors / Aluminum Thermal Mold / MPS-K001-AFBP-NBEU

R7999.00In Stock

Deepcool PN1200-M Power Supply / 1200 watt / 80 Plus Gold / ATX 3.1 / Fully Modular / Embossed Cables / PCIe 5.1 Standard / PN1200-M

R2599.00In Stock

Gamdias HELIOS P1A-850G Power Supply - 850W / 80 PLUS GOLD / Fully Modular / Automatic Fan Speed Optimizing / Compatible with ATX12V v2.52 / HELIOSP1A-850G

R1799.00In Stock

Deepcool PF750 750W 80 Plus Standard Power Supply - Silent Hydraulic Bearing Fan - Flat Black Cables - Reliable Protection - Reduces Friction and Vibration / PF750D-HA

R1299.00In Stock

Choosing the Right Wattage and Features 🔧

So, how much power do you actually need? While it depends on your entire system (CPU, cooling, etc.), here are some solid starting points for achieving stable power delivery for RTX 40-series GPUs:

• RTX 4070 / 4070 Super: A quality 750W PSU is a great baseline.
• RTX 4070 Ti Super / RTX 4080 Super: Aim for at least a solid 850W PSU to give yourself comfortable headroom.
• RTX 4090: Don't even think about it… get a 1000W or 1200W unit. This beast needs all the clean power it can get.

When selecting a unit, you'll find that trusted manufacturers like Corsair offer premium features and long warranties, providing peace of mind. At the same time, other brands like Gamdias deliver fantastic performance and value, proving you don't have to break the bank for reliable power.

Gamdias HELIOS E1-750 Power Supply - 750W / 80 PLUS Certified / Flat Black Cable / Compatible with ATX12V v2.53 / HELIOSE1-750

R799.00In Stock

GAMDIAS 750W Gold Gaming PC PSU, 80 Plus ATX Gold 12V Power Supply for PC Computers with Active PFC, Helios P2-750G / HELIOS-P2-750G

R1999.00In Stock

Corsair RMe Series™ RM1200e Fully Modular Low-Noise ATX Power Supply / 1200watts / Fully Modular / ATX 3.1 Certified / 80 Plus Gold Certified / CP-9020258-WW

R4399.00In Stock

Gamdias KRATOS E1-600 RGB 600W Power Supply / Meet 80% Efficiency / 30 built-in lighting effects / Addressable RGB / KRATOS-E1-600

R949.00In Stock

ANTEC NeoECO - NE1000G M ATX3.0 - 1000W Full Modular PSU - 80 Plus Gold Certified - PCIE 5.0 Support - PhaseWave Design - Japanese Caps - Zero RPM Manager - Silent 120mm Fan — Black / 0-761345-11393-9

R3299.00In Stock

Corsair RMe Series™ RM1000e ATX Power Supply - White (WW) / 1000watts / Fully Modular / ATX 3.1 Certified / 80 Plus Gold Certified / Low Noise / CP-9020294-WW

R4299.00In Stock

Ultimately, a great PSU is a long-term investment. It will likely outlast your current GPU and be ready for your next big upgrade. Don't skimp on the heart of your PC. 🚀