Is this PSU good for my setup?

[the_cook]

My setup is listed below. One of the Outervision recommendations is EVGA SuperNOVA 750W GQ 80+ GOLD. Am I good to go with it?


OuterVision PSU Calculator part list

Motherboard: Desktop
CPU: 1 x Intel Core i7-7700K
CPU Speed: 4200MHz
CPU Vcore: 1.2V
CPU Utilization: 90%
Memory: 2 x 16GB DDR4 Module
Video Card Set 1: 1 x NVIDIA GeForce GTX 1080 Ti
Core Clock: 1480MHz
Memory Clock: 1251MHz
Storage: 1 x M.2 SSD
Storage: 1 x SSD
PCI Express Card: 1 x High-End Sound Card
Other Device: 2 x USB 2.0 Device
Other Device: 2 x USB 3.0 Device
Keyboard: 1 x Gaming Keyboard
Mouse: 1 x Gaming Mouse
Fan: 4 x 120mm
Liquid Cooling Kit: 1 x Corsair Hydro H100i v2
Computer Utilization: 8 hours per day
Gaming/Video Editing/3D Rendering Time: 2 hours per day
Monitor: 2 x LED 27 inches

Load Wattage: 457W
Recommended Wattage: 507W
Amperage: +3.3V: 11.9A, +5V: 12.3A, +12V: 33.8A
Recommended UPS Rating: 850VA
Generated by OuterVision PSU Calculator 2017-05-03 10:57:23

 

[UsandThem]

My setup is listed below. One of the Outervision recommendations is EVGA SuperNOVA 750W GQ 80+ GOLD. Am I good to go with it?

750w is plenty. The EVGA GQ is a solid unit, but depending on the price you are paying for it, there are better units available from EVGA and Seasonic. For example, the Supernova G2 and G3, and even the GS units from EVGA. Seasonic has several great models like their Prime series.

PSU pricing fluctuates pretty dramatically, so sometimes it is possible to catch a higher end unit on sale at the same or even at a lower price.

Many of us here go by what Www.jonnyguru.com has to say about particular units.

 

[Vaibhav dekatey]

I think 750watts would be enough juice to power everything

 

[sm625]

Load Wattage: 457W
Recommended Wattage: 507W

Where did they get those numbers from? I doubt that system pulls 457 watts even at 4.9GHz. Are they including the two monitors.

 

[the_cook]

Where did they get those numbers from? I doubt that system pulls 457 watts even at 4.9GHz. Are they including the two monitors.

I believe that is assuming all components are at 100% load.

I checked with and without monitors - wattage isn't changing. "Monitor power consumption is used to calculate energy cost and does not affect recommended PSU wattage."

 

[UsandThem]

Where did they get those numbers from? I doubt that system pulls 457 watts even at 4.9GHz. Are they including the two monitors.

It's pretty common for the 'online power calculators' to recommend way over what will be needed. Most likely with the system specs he listed, he will not ever go much over 325w - 350w total or so unless running demanding synthetic benchmarks. Review sites show the 1080ti can hit around 280w if power saving features are disabled while benchmarking.

http://www.guru3d.com/articles-pages/geforce-gtx-1080-ti-review,7.html

EVGA's online calculator (https://www.evga.com/power-meter/), which is usually more realistic than others, recommends a PSU in the 600w - 750w range. I myself bought a 650w Supernova G2 (which is way overkill for my system which usually barely goes over 225w while gaming) on sale cheaper than the 550w version, and it is still pretty efficient when not using a larger load, and the fan rarely has to kick on. It all comes down to what is on sale when I go PSU shopping.

 

[the_cook]

It's pretty common for the 'online power calculators' to recommend way over what will be needed. Most likely with the system specs he listed, he will not ever go much over 325w - 350w total or so unless running demanding synthetic benchmarks. Review sites show the 1080ti can hit around 280w if power saving features are disabled while benchmarking.

http://www.guru3d.com/articles-pages/geforce-gtx-1080-ti-review,7.html

EVGA's online calculator (https://www.evga.com/power-meter/), which is usually more realistic than others, recommends a PSU in the 600w - 750w range. I myself bought a 650w Supernova G2 (which is way overkill for my system which usually barely goes over 225w while gaming) on sale cheaper than the 550w version, and it is still pretty efficient when not using a larger load, and the fan rarely has to kick on. It all comes down to what is on sale when I go PSU shopping.

I think I figured out how outervision psu calculator works. Just bare with my thoughts and correct me if I'm wrong please. Outervision power supply calculator recommendation has multiple PSU choices based on PC's energy cost, particular PSU's efficiency under specific loads, price, and payback period.

So, the lowest efficiency tier it recommends is EVGA 550W N1 (which makes sense for my setup wattage wise). With this PSU I will end up paying ~$153 per year in electricity cost because of lower efficiency.

And the highest tier is EVGA SuperNOVA 750W T2. Great efficiency but was too expensive that makes payback period to be over 10 years!

And EVGA SuperNOVA 750W GQ is the "best bang for the back" with good efficiency level, acceptable payback period and price. I just realized going though their site that you normally would like to have you PSU loaded at ~50% to have the best efficiency and lower energy cost http://outervision.com/pc-energy-cost, which makes sense.

 

[UsandThem]

And EVGA SuperNOVA 750W GQ is the "best bang for the back" with good efficiency level, acceptable payback period and price. I just realized going though their site that you normally would like to have you PSU loaded at ~50% to have the best efficiency and lower energy cost http://outervision.com/pc-energy-cost, which makes sense.

It's hard to say for sure what they input into their PSU calculation formula.

But the 50% load for optimal efficiency is long dead. If you go to the manufacturer's website (or a review site like JonnyGuru), they will list its efficiency across the entire load. For gold, platinum, and titanium PSUs, there usually isn't a large difference like there used to be with unrated units.

 

[Psychomanteum]

I would go with a GS , G2 , G3 model.

GS = SEASONIC , G2 and G3 = Super Flower

 

[Rifter]

If you go to the manufacturer's website (or a review site like JonnyGuru), they will list its efficiency across the entire load. For gold, platinum, and titanium PSUs, there usually isn't a large difference like there used to be with unrated units.

This is very true, and a departure from the last decade or so, people should always look at jonnys reviews.

 

[bigboxes]

That 750W PSU is probably just about right. It will handle whatever you throw at it currently. That is what you want. Stability. What @UsandThem said. I've got three Seasonic PSUs doing duty right now. I've kinda been thinking about my next PSU being a Prime unit. I also have an Antec Earthwatts in the missus computer and another Earthwatts only used for troubleshooting. I got to have a PFC capable PSU.

 

[HutchinsonJC]

I feel like you should always over shoot a PSU. When they aren't stressed, they are far less likely to crap out on you. Also, you leave yourself plenty of room for hardware upgrades or an entire PC rebuild in the future. How much you over shoot, is really up to you and how you see yourself reusing components or doing rebuilds. And what you pick out might even be influenced rather heavily by sales prices at the time of the purchase.

That rig looks like a 450 watt rig at most. And that's assuming you take the CPU clocks to another level in the future and run something like folding at home on the CPU and GPU simultaneously. I'd put a 600 watt in there at least, but I'd probably look at anything from 600 to 800 and buy whatever seems like the obvious best choice for your dollar spent.