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PcPartpicker estimate VS Online Calculators

rjhg4444

65 months ago

Hi everyone,

I need some experienced advice on understanding the correct PSU wattage for my build. As I see it, ideally, the build should be between 20% (at idle) and 75% to 80% (at load) of the PSU's wattage capacity, as per my understanding of the 80+ Gold certificate efficiency indicators.

Now, PcPartpicker's estimate for this build is 410W, so if I get a 550W PSU, I should be good. (110W idle = 20% of PSU capacity, and 410W load = 74% of PSU capacity)

My doubts started when I decided to try out Newegg's and Asus's wattage calculators, which gave me a recommendation of 770W and 800W respectively, which seem unnecessarily high in comparison to my 550W, but then again they are golden source calculators.

So what should I go for, 550W, 800W or something in between?

Thank you very much for the help.

http://pcpartpicker.com/user/rjhg4444/saved/4kkt

Comments

  • 65 months ago
  • 1 point

You should be safe using PCPartpicker's built-in wattage calculator. It does not account for overclocking headroom so if you plan to OC your system then you will need to factor in extra power.

Looking at your linked build, I would suggest revising it quite a bit. For $1,300 you can do so much better than the A10-7700K + R9 280 combo. That is a very unbalanced combination. They cannot be Crossfire'd together.

Might I recommend this build: http://pcpartpicker.com/p/3ppvY

  • 65 months ago
  • 1 point

Thanks. I don't intend to overclock, so the 550W it is.

Thanks also for your suggestion, I also have a planned Intel build. I'm still undecided between AMD and Intel, but I guess I'll be discarding this particular AMD build.

I'm in Portugal so as the US domestic prices don't really apply to me, I have to improv somewhat on the parts combinations, like getting an apu instead of a FX, so that I can get started on minimum requirements while saving for the discret GPU, or choosing corsair instead of seasonic because it's almost $70 cheaper.

These are the real usd prices for my planned Intel build converted from my local prices in €.

http://pcpartpicker.com/user/rjhg4444/saved/4g8j

These are of your recommendation.

http://pcpartpicker.com/p/3prhq

This computer will not come cheap...

  • 65 months ago
  • 1 point

Ooh did not realize you were in Portugal and paying such a premium on parts. If you are on a budget, you can get by very well in gaming with just 8GB of 1600MHz of RAM. No need to spend precious funds on 16GB (based on you linked Intel build).

  • 65 months ago
  • 1 point

Yeah, I guess I'll shave off some of the non-essential stuff for now.

Thanks for the advice man.

  • 65 months ago
  • 1 point

Don't use Newegg's or Asus'. There's plenty of other ones out there that are slightly more reputable like this one. I've found that PCPP's estimate is pretty accurate actually

  • 65 months ago
  • 1 point

Just tried it and got a recommendation of 423W, which is more coherent with PCPP's. Guess I got a new golden source for wattage. Thanks Man!

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