650W vs 1000W

[Nanda Velugoti]

I am getting a cheaper deal on 1000W than a 650W 80+ Gold Certified PSU in India. Should I go with the 1000W?

Is there any other alternative?

[Origami Cactus]

There is nothing bad in getting a higher power unit, only benefits. 

[seon123]

6 minutes ago, Origami Cactus said:

There is nothing bad in getting a higher power unit, only benefits. 

Except for the higher OPP tripping point, since the RMx lacks multi rail. So potentially more dangerous, in case of a catastrophic failure. 

There can also be a higher inrush current, since the caps are larger. 

[Sir Asvald]

What system are you running that needs 1000w? 1000w is waay too much. Unless you're running CPU that has high TDP and high end GPUs..

[Origami Cactus]

2 minutes ago, seon123 said:

Except for the higher OPP tripping point, since the RMx lacks multi rail. So potentially more dangerous, in case of a catastrophic failure. 

There can also be a higher inrush current, since the caps are larger. 

You certainly are a certified cat.

Anyways i thought more about that: 1) The 1000w unit is sold by amazon not some rando. 2) Better 0db fan curve 3)Better efficiency at load 4)more ports on the back 5)Better upgradeability 6)free delivery

[Fasauceome]

4 minutes ago, Origami Cactus said:

Better upgradeability

For the purposes of a regular PC, these power supplies have effectively the exact same upgradeability, unless quad SLI makes one hell of a comeback.

 

Also, 1000W = 350W more of bragging rights.

[Mooshi]

Whichever is cheaper, obviously.

 

I only have a 750w unit in my rig because it was on sale. Most rigs need PSUs under 500w. It's price that should win out over Max wattage.

[SupaKomputa]

There's no way in current condition that you will need a 1000 watt psu, unless you would fill all 4 PCIe slot with 2080.

BUUUT, getting lower power psu usually for cost consideration.

IF 1000watt psu is the same price as 650watt, i say just get it.

For the amount of watt it will use, comparatively the same, it will output the amount of what the system's demanded.

If all the same (components, heatsink, fans, casing) there's no benefit.

Pretty logical for the price drop as nobody wants 1000 watt psu right now, the only market it has was miners, and now miners are gone.

 

But wait, i think i see the difference, the 1000watt has more ports, thats a deal for me (although i won't use it).

[Stefan Payne]

7 hours ago, Origami Cactus said:

You certainly are a certified cat.

Anyways i thought more about that: 1) The 1000w unit is sold by amazon not some rando. 2) Better 0db fan curve 3)Better efficiency at load 4)more ports on the back 5)Better upgradeability 6)free delivery

All wrong.

 

Because the difference in Efficiency is negligable with more modern Designs. 

The semi-fanless stuff is based on Temperature, NOT load.

Better efficiency depends on the Curve and you also loose Efficiency at lower loads as well.

Better Upgradability is not entirely true either...

[Guest]

17 hours ago, Stefan Payne said:

 

The semi-fanless stuff is based on Temperature, NOT load.

 

Correction:  The fan controller uses load AND temperature.  The OP AMPs used to measure current for OCP also reports back to the fan controller.  The reason an MCU is used instead of a standard thermistor fan controller is because there's a rather complex algorithm programmed into it to tell the fan when to spin and how fast it should spin.

 

 

[Mick Naughty]

1000 all the way. 750 is petty, I do have one as a coaster though.