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I have question about efficiency chart on PSU

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Im in market for buying a PSU, i want to ask which in theory would have the best efficiency load, for a 3950x with 200w gxf.
On a 570x Master with 2 nvme - 4 Sata - 1 Hdd
im considdering buying the EVGA NOVA series platinum 650w and up.
 
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Im in market for buying a PSU, i want to ask which in theory would have the best efficiency load, for a 3950x with 200w gxf.
On a 570x Master with 2 nvme - 4 Sata - 1 Hdd
im considdering buying the EVGA NOVA series platinum 650w and up.
add fans +various usb devices from time to time.

you really want 850w platinum ideally. especially with a high end CPU like that. 850w titanium EVGA T2 is currently on sale for $190 in USA. i just noticed you are not in USA though dangit...
 
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Basically a PSU is most efficient around 50% of it's rated power. I would say that a 650 watt PSU would be the sweet spot in this case but bear in mind that the difference in efficiency at 50% load between a Gold Rated and a Platinum Rated is only 2%.

 
Joined
Mar 24, 2019
Messages
274 (1.06/day)
Location
Denmark - Aarhus
System Name Iglo
Processor Intel® Core™ i7-3770K CPU @ 3.50GHz OC to 4000 mhz (Ivy Brigde)
Motherboard Asrock Z77 Extreme 9 Socket 1155 LGA
Cooling 240 mm water
Memory 16 gb 2600 mhz ddr3
Video Card(s) EVGA GeForce GTX 1080 SC2 GAMING
Storage Ssd ´s in raid.
Display(s) BenQ XL2420Z
Case corsair obsidian 650d
Audio Device(s) Logitech Z-2300 THX-Certified 2.1 Speaker
Power Supply Seasonic Prime Ultra Platinum 550w
Mouse G900
Keyboard Hyper x
Software win 10
Benchmark Scores Super-PI 1M Time : 9,265 sec CPU-Z scores Version 2017.1 (x64) S-T 395 M-T 1945
Just the info i wanted, thx.
my estimation of the consumption for daily use is 300-350w.
 
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