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Be Quiet! Dark Power 12 - 850W PSU Review
Posted by: on: 03/23/2021 03:06 PM [
18 comment(s) ]
Shortly after the release of the PRO series 12 power supplies from be quiet! they now release the non-PRO mode, Dark Power 12. Initially released as 1000W, 850W, and 750W model we'll check out the first one. Now, don't let the looks and title fool you, this series is carrying a Titanium 80Plus certification also, and that means it is gaming the most efficient products they have available.
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vestibule
Senior Member
Posts: 469
Senior Member
Posts: 469
Posted on: 03/23/2021 09:11 PM
It would be great if you could review PSU's of 400/500w for regular gamers like me.
It would be great if you could review PSU's of 400/500w for regular gamers like me.
mdm
Member
Posts: 34
Member
Posts: 34
Posted on: 03/23/2021 11:43 PM
Serious gamers are 1200W+, gamers are 850W+, weekend warriors are 600W, soooo....
It would be great if you could review PSU's of 400/500w for regular gamers like me.
Serious gamers are 1200W+, gamers are 850W+, weekend warriors are 600W, soooo....
vestibule
Senior Member
Posts: 469
Senior Member
Posts: 469
Posted on: 03/24/2021 12:34 AM
Well, thats what you say, you ott power crazed looney bin.
Serious gamers are 1200W+, gamers are 850W+, weekend warriors are 600W, soooo....
Well, thats what you say, you ott power crazed looney bin.
kapu
Senior Member
Posts: 4760
Senior Member
Posts: 4760
Posted on: 03/24/2021 02:05 PM
In my life i had about 12 bequiet! PSUs , i can recomment them . None of them died . Some are very old . ( oldest being 12 yo), stil work like new.
In my life i had about 12 bequiet! PSUs , i can recomment them . None of them died . Some are very old . ( oldest being 12 yo), stil work like new.
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Junior Member
Posts: 1
Some of the maths is wrong.
"if your components would consume 500W directly from the PSU, then with that 70% efficient product, you'd use and draw 650W"
More likely to draw 714W not 650W.
500/714= ~70%
500/650= ~76.9%
So your calculated 70% and other derived average 80plus power figures are wrong.
If a PSU which is 80% efficient it does not draw 20% more power than the load as heat.
125w from wall = 100w for load & 25w of heat = 80% efficiency.
25w/100w = 25%
To work backwards, 100รท0.80 = 125.
80% = 0.80
The actual measurements of PSU you have reviewed (power draw at the wall) are OK. I'm just talking about those you made up for comparison.
Approx input for 350w load (pg8):
80plus = 420 should be 437.5
Bronze = 402,5 should be 411.7
Silver = 392 should be 397.7
Gold = 385 should be 388.8
Platinum = 378 should be 380.4
Titanium = 364 could be 364.5 (OK, close enough)
These days CPU/GPU require much higher sub-second power than what you see with measured averages. More headroom (unused capacity) means better regulation for today's more sensitive components.
Diminishing returns to increase efficiency past 95% at ever increasing cost.