The RTX 3070 is detailed as 9.5 inches (242mm) in length and 4.4 inches (112mm) width. The RTX 3070 requires a single 8-pin PCIe power connector running from the PSU, and a suitable cable will come bundled with the RTX 3070 Founders Edition. If you are looking to use a lower rated power supply then its recommended you check with your PSU vendor for RTX 3070 compatibility. The RTX 3070 may also work on a lower-rated PSU than 650W, though once again this does depend on your own system’s configuration. Nvidia hasn’t provided quite the same handy infographics as the two cards above, but provides the same information in the specs list at least. For this card you will need a lower rated 650W power supply. The RTX 3070 is probably one of the most exciting cards of this generation due to its performance improvements for the price, and comes in at a much lower 220W power draw. In addition, the RTX 3080 has a length of 11.2 inches (285mm) and a width of 4.4 inches (112mm), though unlike the RTX 3090 above, this card will only take up 2 expansion slots in your PC case. The RTX 3080 Founders Edition will come packaged already with these 2 cables provided. The RTX 3080 also requires two dedicated 8-pin PCIe power cables running sperataley from the PSU. Once again though, Nvidia has stated that a lower power rating could still work depending on your system configuration, but its recommended to check with your PSU vendor first whether the lower-rated PSU supports the RTX 3080. According to Nvidia, you will need a power supply rated at 750W in order to run properly. The flagship GPU of this new generation, the RTX 3080, has a total power draw of 320W which makes it a pretty hefty and demanding card. If you’re not sure what PC case to pick, here’s our own guide to the best PC cases for the RTX 3090 and the rest of the RTX 30 series including the RTX 3080 and RTX 3070. So make sure you have enough space in your PC case in order to install this graphics card. If you purchase the RTX 3090 Founders Edition then these cables will be supplied for you.Īdditionally, though not related to your PSU size, the RTX 3090 comes in at 12.3 inches (313mm) in length, 5.4 inches (138mm) in width, and will require 3 expansion slots on your PC case. You will also need 2 dedicated 8-pin PCIe power cables running from the PSU separately. If you are looking to use a lower power rating, then it is recommended you check with your PSU vendor. For the Nvidia’s Founders Edition you will need a 750W power supply in order to provide sufficient power, though Nvidia also states that a lower PSU rating could work, though that depends on your system configuration. The top-end RTX 3090 has a power draw of 350W, making it one of the most demanding GPUs in terms of power draw. Surprisingly, the monster 8K 60fps RTX 3090 graphics card doesn’t actually require anything bigger than a 750W power supply either. The RTX 3080 on the other hand is recommended to have a 750W PSU, just 100W shy of the previous leaks by Seasonic. But the new RTX 30 series recommends at minimum a 650W power supply for the RTX 3070. Now obviously that means more power is going to need to be distributed across your system, which may require a larger PSU than the one you already own.Ī 550W-650W power supply is fairly standard these days, especially after the previous-gen RTX 20 series GPUs came out 2 years ago. This is obviously one of the most demanding generations of GPUs in terms of power draw, with both the RTX 3090 and RTX 3080 breaking past 300W. ( *Note: The specs listed above are based on the Nvidia Founders Edition graphics cards, as such certain custom AIB partners may have different specs per GPU, so check their official specifications if you were thinking of going with another brand ) Here’s a breakdown of each RTX 30 series GPU and their Thermal Power Specs: GPU Fear not though, as the RTX 30 series is a little bit less demanding than that at least. Seasonic have previously confirmed that they recommend an 850W PSU for the RTX 30 series, which got a lot of people worried about needing to buy a brand new power supply for their system. But what power supply do you need for the RTX 3090, 3080, and 3070? Nvidia’s next-gen RTX 30 series graphics cards are nearly upon us, launching in just over a week’s time (at least for the RTX 3080 that is) this has obviously gotten a lot of us excited to upgrade our PC hardware in time for the next-gen consoles and games.
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