PSU & Power needs with GPU upgrade

subterminal303

Commendable
Oct 13, 2017
64
0
1,530
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Howdy folks!

I'm looking to upgrade my GPU soon and curious if I'll need a PSU upgrade. I just built this rig in March, so the PSU is new. I'm looking to add either a GTX 1080 TI or RTX 2080, yet to be decided. However, I used Cooler Master's Power Calculator and am somewhat confused on the results. (Note: I used a GTX 1080 TI as the GPU in the calculations, not the 1060 which I currently have)

It shows that my load wattage is 513 watts and that the recommended minimum PSU wattage be 563 watts. Then, it shows a recommended PSU which is 750 watts.

Is there a good reason to have an extra ~200 watts available? Can I get by with an upgrade and keep my 650watt PSU?

Here is a full list of the components in my rig, along with all peripherals.
 

Jwpanz

Admirable
You'll be fine with a 650 watt unit. The 1080ti is recommended to be paired with a 600 watt power supply (per Nvidia: https://www.nvidia.com/en-us/geforce/products/10series/geforce-gtx-1080-ti/)
 

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