How much power is TOO much when buying a PSU

[AlgaeEater]

I'm currently looking at the RMi 650 PSU, but I'm wondering, how much is TOO much when it comes to buying a power supply.  I hear that if you get a PSU thats, 'Way above your specific needs', It can use to much power from the wall or just be too inefficient.

 

From a PSU calcuator My watts seem to be around 300 give or take.. and I'm currently using a Msi Gtx970 (that I plan to upgrade), i5-6600k, one Strip of LEDs, an AIO Cooler, 4 fans, SSD, HHD.  Pretty much just the basics.  Would a 650 be too much?

[comicsansms]

Ignore PSU calculators, they are often wrong by a lot. 

A Corsair RM650i is really good and you can SLI on it in the future. Go ahead with it.

[Guest]

Yes. Pretty much too much

[Equlizer]

With a quality power supply you can never have "too much" power but you can have "not enough"

[iRileyx]

it would be too much based on the fact a 550 would be enough, but it wouldn't be less efficient and pull more from the wall, the wattage rating is the max it can supply the pc, not how much it is constantly pulling from the wall.

[Kovi]

I'd go with a 650 watt, to give plenty of room to grow. Keep in mind, this is one of the few components you can really future-proof. Also, make sure to buy from a reputable supplier (Corsair, CoolerMaster, ect.)

[PCGeek]

Try to focus on how well power is distributed on the rails and the quality vs the total wattage.  I generally favor 80Plus Gold since manufacturers will tend to use better quality components on their 80Plus Gold lines.  I say 650W or 750W depending on the price and future expansion requirements is the sweet spot.

[Mooshi]

For a single modern gpu set up, 650w is excessive. Although I'm one to talk with a 550w platinum unit from Silverstone powering a GTX 1060 and lightly overclocked 6700k lmao

[HKZeroFive]

It's better to have excessive power than insufficient power but it's also good to know how much is reasonable and much is not.

 

650W is fine... considering that's the lowest wattage RMi power supply you can get (and the Corsair RMi series are more than just good).

[AlgaeEater]

12 minutes ago, Mooshi said:

For a single modern gpu set up, 650w is excessive. Although I'm one to talk with a 550w platinum unit from Silverstone powering a GTX 1060 and lightly overclocked 6700k lmao

What if I have plans to upgrade or maybe even SLI?  Not now ofc.. but just to have the option open to something I know I'm going to do down the road?

[nicobombai]

Buying a 1250W for a 300w pc is too much i guess..

 

550-600W should be more than enough for the average market.

[Mooshi]

10 minutes ago, AlgaeEater said:

What if I have plans to upgrade or maybe even SLI?  Not now ofc.. but just to have the option open to something I know I'm going to do down the road?

650w for SLI is a good fit considering how efficient Nvidia cards are these days. 

[STRMfrmXMN]

12 hours ago, AlgaeEater said:

I'm currently looking at the RMi 650 PSU, but I'm wondering, how much is TOO much when it comes to buying a power supply.  I hear that if you get a PSU thats, 'Way above your specific needs', It can use to much power from the wall or just be too inefficient.

 

From a PSU calcuator My watts seem to be around 300 give or take.. and I'm currently using a Msi Gtx970 (that I plan to upgrade), i5-6600k, one Strip of LEDs, an AIO Cooler, 4 fans, SSD, HHD.  Pretty much just the basics.  Would a 650 be too much?

A 650W RMi is what I would purchase for myself if I bought a second 970 for my system so you're in a good spot.

[STRMfrmXMN]

11 hours ago, Mooshi said:

650w for SLI is a good fit considering how efficient Nvidia cards are these days. 

Pascal cards actually use more power than Maxwell cards so if OP had a 1070 I'd actually suggest a 750W.