Nvidia have officially announced the new 3070 series Ampere Graphics cards and with that come new Power Supply requirements.
TL;DR – Best PSU’s for Nvidia RTX 3070
Can’t be bothered to read below? No worries, these are the PSU’s we suggest;
| Name | Form Factor | Price |
|---|---|---|
| ATX | ||
| ATX | ||
| ATX | ||
| SFX-L | ||
| SFX |
What you need to know about the power requirements of the RTX 3070
If you are a more budget gamer, or simply don’t intend on pushing out huge numbers of pixels then a 3070 may be a more wallet friendly graphics card choice for 1080p and 1440p gaming.
The current “low” end GPU from the new Ampere lineup sits below the 3080 but still improves massively on performance when compared the previous generation cards.
Having said that, the power requirements are still fairly extreme, with Nvidia themselves recommending at least 650 Watts.
Geforce RTX 3070 Full Specs
Let’s take a look at the full specs for the RTX 3070.
| GPU Engine Specs: | NVIDIA CUDA® Cores | 5888 |
| Boost Clock (GHz) | 1.73 | |
| Base Clock (GHz) | 1.50 | |
| Memory Specs: | Standard Memory Config | 8 GB GDDR6 |
| Memory Interface Width | 256-bit | |
| Technology Support: | Ray Tracing Cores | 2nd Generation |
| Tensor Cores | 3rd Generation | |
| NVIDIA Architecture | Ampere | |
| Microsoft DirectX® 12 Ultimate | Yes | |
| NVIDIA DLSS | Yes | |
| PCI Express Gen 4 | Yes | |
| NVIDIA® GeForce Experience™ | Yes | |
| NVIDIA Ansel | Yes | |
| NVIDIA FreeStyle | Yes | |
| NVIDIA ShadowPlay | Yes | |
| NVIDIA Highlights | Yes | |
| NVIDIA G-SYNC® | Yes | |
| Game Ready Drivers | Yes | |
| NVIDIA Studio Drivers | Yes | |
| NVIDIA GPU Boostâ„¢ | Yes | |
| NVIDIA NVLinkâ„¢ (SLI-Ready) | – | |
| Vulkan RT API, OpenGL 4.6 | Yes | |
| HDMI 2.1 | Yes | |
| DisplayPort 1.4a | Yes | |
| NVIDIA Encoder | 7th Generation | |
| NVIDIA Decoder | 5th Generation | |
| VR Ready | Yes | |
| Display Support: | Maximum Digital Resolution (1) | 7680×4320 |
| Standard Display Connectors | HDMI 2.1, 3x DisplayPort 1.4a | |
| Multi Monitor | 4 | |
| HDCP | 2.3 | |
| Founders Edition Card Dimensions: | Length | 9.5″ (242 mm) |
| Width | 4.4″ (112 mm) | |
| Slot | 2-Slot | |
| Founders Edition Thermal Power Specs: | Maximum GPU Temperature (in C) | 93 |
| Graphics Card Power (W) | 220 | |
| Required System Power (W) (2) | 650 | |
| Supplementary Power Connectors | 1x PCIe 8-pin (adapter to 1x 12-pin included) |
Geforce RTX 30700 Power Supply Requirement
We’ve seen the full spec list above, but let’s focus now on the Power Specs, specifically what size PSU you need for a RTX 3070.
| Founders Edition Thermal Power Specs: | Maximum GPU Temperature (in C) | 93 |
| Graphics Card Power (W) | 220 | |
| Required System Power (W)Â (2) | 650 | |
| Supplementary Power Connectors | 1x PCIe 8-pin (adapter to 1x 12-pin included) |
That’s right a 650W Power Supply is the required power supply for a low end card in 2020!
But wait, don’t toss aside your existing power supply just yet, let’s dive in a little deeper to what (2) is all about..
Recommendation is made based on PC configured with an Intel Core i9-10900K processor. A lower power rating may work depending on system configuration.
Source: https://www.nvidia.com/en-gb/geforce/graphics-cards/30-series/rtx-3070/
So that’s using a super high end (and a little toasty) Intel Core i9-10900k, which is unlikely to be the CPU of choice for a more budget oriented gaming build.
If you go for a lower power drawing i3 or i5, or more likely a Ryzen 3,000 or 4,000 it’s likely that you’d get away with a lesser power supply.
However, for the purpose of our recommendations we are only recommending 650+ w cards to ensure comparability.
Best Power Supplies for Nvidia Geforce RTX 3070
The power supplies listed below are primarily based from listings in our PSU tier list.
Best ATX Power Supply for Nvidia Geforce RTX 3070
Below we list the best full sized ATX PSU’s suitable for the Nvidia Geforce RTX 3070
be quiet! | Dark Power Pro 11 |
Cooler Master | V Platinum|
Corsair | HX Platinum |
Best SFX-L Power Supply for Nvidia Geforce RTX 3070
Below we’ve listed the best SFX-L PSU suitable for the Nvidia Geforce RTX 3070
SilverStone |SFX-L, 80 Plus Titanium |
Best SFX Power Supply for Nvidia Geforce RTX 3070
Below we’ve listed the best SFX PSU suitable for the Nvidia Geforce RTX 3070.
Corsair | SF Series, SF750, 750 Watt, SFX, 80+ Platinum
Conclusion
So there you have it, a new series of GPU’s and a shopping list of power supplies to power them.
If you think we’ve missed the best psu for RTX 3070 please let us know in the comments below and we’ll update our list.





