What PSU Do You Need for the NVIDIA GeForce RTX 5070?
Recommended wattage, the realistic minimum, and the connector you need — with a live peak-draw estimate.
Card peak (TBP)
250W
Recommended PSU
650W
Practical baseline
600W
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Estimate your full-system peak draw
Quick Summary · TL;DR
For the NVIDIA GeForce RTX 5070, get a 650W 80+ Gold power supply (600W minimum). The card peaks near 250W; the rest of the recommendation is headroom for your CPU and the transient spikes modern GPUs produce.
Why 650W and not less?
The NVIDIA GeForce RTX 5070 has a board power of about 250W, but it can spike well above that for milliseconds at a time. Add a typical gaming CPU and the rest of the system, then keep the supply in its efficient 50-80% load band, and 650W is the comfortable target. The NVIDIA GeForce RTX 5070 uses a 16-pin 12V-2x6 connector, so an ATX 3.0/3.1 power supply with a native 12V-2x6 cable is strongly recommended — it removes the fragile adapter and is rated to ride out the card’s transient spikes without tripping.
Want a complete, balanced parts list around this card? See the $1500 High-End build.
Three power supplies that fit the NVIDIA GeForce RTX 5070
Load figures assume this card at its 250W peak alongside a Ryzen 7 or Core i7 class CPU and 75W for the rest of the system, so roughly 465W at the wall-facing side of the supply. The card draws through a 16-pin 12V-2x6 connector.
Balanced
Corsair RM750e (2025) 750W 80+ Gold ATX 3.1
750W · 80+ Gold
The 140 mm body clears nearly any case and the 600W 12V-2x6 cable covers a current-gen NVIDIA upgrade. One native 6+2 plus two more off the GPU cable.
Check the RM750e on AmazonRoom to upgrade
Best fitCorsair RM850x (2024) 850W 80+ Gold ATX 3.1
850W · 80+ Gold
Three native 6+2 connectors and 100% Japanese capacitors. Enough headroom for a two-tier GPU upgrade; the 160 mm body rules out some compact cases.
Check the RM850x on AmazonAnything under 60% keeps a hybrid-mode fan off for most of a gaming session, which is why the RM850x is the pick here rather than the cheapest unit that technically fits. Specifications are taken from each manufacturer's product page; confirm the exact revision before ordering, as connector counts change between refreshes of the same model name. As an Amazon Associate, SpecsCalc earns from qualifying purchases.
Sources & verification
The 550W baseline is the manufacturer-class figure for the NVIDIA GeForce RTX 5070; the 650W target adds room for CPU choice and transient load. How both numbers are derived is set out in the methodology.
Frequently asked questions
What power supply do I need for the NVIDIA GeForce RTX 5070?
A 650W 80+ Gold unit is the recommended choice; it covers the card’s peak draw plus a transient-safe buffer and keeps the PSU in its efficient load band. 600W is the realistic minimum for a single-GPU build.
Is a 600W PSU enough for the NVIDIA GeForce RTX 5070?
It can run a modest build, since the card itself peaks around 250W, but it leaves little headroom for a power-hungry CPU or transient spikes. Stepping up to 650W is the safer, quieter long-term choice.
Does the NVIDIA GeForce RTX 5070 need an ATX 3.0 power supply?
Yes — it uses a 16-pin 12V-2x6 connector, and an ATX 3.0/3.1 unit provides the native cable and the transient-spike rating these cards expect.
Different parts? Run the full PSU Wattage Calculator, or browse every GPU’s PSU requirement.