GPU uses 150w but says recommend 500w PSU?

[sooty1234567890]

So i recently ordered a new gpu, while checking the gpu's specifications it said it uses 150w but recommended to use a 500w psu, i have a corsair 450w psu, is there any problem with me using 450w psu even though it's recommended to use a 500w psu?

 

[Gam3r01]

What specific unit do you have? Full system specs including new GPU?
The websites list things like "500w" for people with cheap power supplies, that cant output proper wattages.

 

[photonboy]

The 500W rating is for the ENTIRE COMPUTER, including graphics card, CPU, motherboard etc.

They don't know what CPU you have so they generally assume a worst-case scenario.

Chances are you are fine (most modern systems don't use more than about 150W not counting the graphics card), though you may need an ADAPTER for 6/8-pin PCIe graphics card power if you don't have the proper connectors.

 

[sooty1234567890]

My specs are:
GEFORCE Gtx 1070 Mini Zotac
Intel I7 4790k
B85 pro gamer motherboard
Corsair VS450
Hyperx fury 8gb ddr3 ram

 

[Gam3r01]

While the VS series isnt great, you can probably get away with it for now.

 

[sooty1234567890]

So to clarify the gpu power consumption says it consumes 150w but recommended 500w, meaning 500w isn't necessary to have and wont cause any performance issues to the gpu, thanks for the help

 

[Gam3r01]

The card draws 150w, they recommend 500w for the card, and the whole system.
Personally, this shouldnt even be listed.

Even if your wattage is under 500w, it would still work, the 500w estimate is for higher power draw systems (processors)

 

[superninja12]

Im sorry I come here to complain but..


200+ dollar cpu , 350 dollar gpu. and its that hard to spend 10-20 dollars more on a decent powersupply?
I Strongly recommand you to cancel that order and get something decent.

Why? because you want to safely power your pc and rock those components to the max.

 

[sooty1234567890]

Thanks a lot for the help.

 

[photonboy]

Just to confirm:

1) System sans dGPU
http://www.tomshardware.com/reviews/core-i7-4790k-devils-canyon-overclock-performance,3845-9.html

2) GTX1070 OC: http://www.guru3d.com/articles-pages/nvidia-geforce-gtx-1070-review,8.html

140W + 160W = 300W

I believe that's power FROM the PSU, not from the wall. We could have GPU power spikes too, but then the CPU is usually not at 100% load during games anyway, so we'll stick with 300W.

You can have more FANS etc, so we'll estimate normal gaming load as:

about 60%
may see spikes up to 75% or so.

OTHER:
FAN NOISE may or may not be too loud depending on how picky you are.

THIS PSU is the EVGA G2 which has an ECO MODE so it can turn its fan on below 325W (50% load):
https://pcpartpicker.com/product/9q4NnQ/evga-power-supply-220g20650y1

Not sure about ALL EVGA PSU's but I found that with ECO MODE off the fan was far too noisy. I got my dad a Be Quiet and it had no Eco Mode but it was much quieter under heavy load than my EVGA with the fan enabled.

Your current PSU should work fine. Frankly, it's very difficult to know how reliable some of these power supplies are. I hear all sorts of NEGATIVE COMMENTS by people who simply repeat what others have said, but MTBF (Mean Time Before Failure) may be high for your power supply.

Having said that, higher quality isn't just about power stability, or the PSU failing but it includes better PROTECTION circuitry too to prevent damage to other components if you have problems.

**AND**
I use a voltage regulator as well. The APC Line-R 1200VA:
http://www.apc.com/shop/us/en/products/Line-R-1200VA-Automatic-Voltage-Regulator/P-LE1200

It has some surge protection, however it's best feature is it can protect from AC voltage that is constantly TOO HIGH (dissipates as heat).