How Many Watts Does Your Gaming PC Need? PSU Guide for RTX 50 Cards

When building a gaming PC, most people spend their time choosing the graphics card and CPU, and the power supply (PSU) is the last thing they think about. Yet the PSU feeds the whole system, and the wrong choice can cause sudden shutdowns or instability. The most common question: how many watts do I actually need? Here is the answer using official numbers from NVIDIA.

The official numbers: how many watts does each card need?

NVIDIA publishes two key figures for each card: the card's own power draw (Total Graphics Power) and the minimum PSU capacity for the whole system (Required System Power). These are from NVIDIA's official RTX 50 series pages:

RTX 5060: 145W card power, 550W required system power.
RTX 5060 Ti: 180W card power, 600W required system power.
RTX 5070: 250W card power, 650W required system power.
RTX 5070 Ti: 300W card power, 750W required system power.

Why is the required number so much higher than the card's draw?

Because the PSU does not power the card alone. There is the CPU, motherboard, RAM, storage, fans and lighting. NVIDIA notes that the minimum is based on a PC with a Ryzen 9 9950X processor, a powerful CPU, and that power requirements can differ depending on your configuration. So the official number is a starting point, not a magic figure.

Practical tips for choosing a PSU

Start from NVIDIA's number: do not go below the minimum required for your card.
Leave room to upgrade: if you plan to move to a higher-tier card later, pick a PSU that covers the next card so you do not replace the PSU twice.
Look for ATX 3.1 and PCIe 5.1: NVIDIA recommends a PCIe CEM 5.1 compliant PSU, which matters for new-generation cards and their connectors.
Efficiency matters: an 80 PLUS Gold rating means higher efficiency converting power, so less heat and a lighter bill.
Size: if your PC is small form factor, you need an SFX PSU instead of standard ATX.
Do not cheap out on the PSU: a low-quality PSU can affect every part it powers. This is the part you do not want to gamble on.

A practical example

If your PC has an RTX 5060, NVIDIA's minimum is 550W. A quality 650 or 750W PSU gives you comfort and headroom. If you are going for an RTX 5070 Ti, NVIDIA asks for 750W as a minimum, and an 850W PSU is a more comfortable choice, especially with a powerful CPU.

Signs your PSU may not be enough

If your PC shuts down or restarts suddenly while gaming or under load, but runs fine during light use, the PSU is one of the first things to check, especially after a graphics card upgrade. Heat, cables and correct connections also play a role, so do not rush to conclusions and have a technician check the system.

Products in stock

FSP Dagger Pro 850W 80 PLUS Gold ATX 3.1 SFX Power Supply (White): according to the product page, a compact SFX PSU ideal for small builds, and its 850W covers even the official RTX 5070 Ti requirement.
ZOTAC GAMING GeForce RTX 5060 Twin Edge 8GB: according to the product page, it runs from a single 8-pin connector with a 145W TDP, which makes it light on the PSU.

Check the current price on the product page. Installments are available through Tamara and Tabby.

Bottom line

The PSU is not a minor part. Start from your card's official number, add headroom for upgrades, and choose high quality and efficiency. Want us to work out exactly what your PC needs? Message us on WhatsApp at +966 56 412 1558 or visit our Olaya or Aqiq branch in Riyadh. Installments are available through Tamara and Tabby.