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Corsair 850W vs. Corsair 1000W vs. SeaSonic 850W vs. XFX 850W

 
Specifications
Corsair Professional 850W 80+ Gold Certified Semi-Modular ATX Power Supply Corsair RM 1000W 80+ Gold Certified Fully-Modular ATX Power Supply SeaSonic X Series 850W 80+ Gold Certified Fully-Modular ATX Power Supply XFX ProSeries 850W 80+ Gold Certified Fully-Modular ATX Power Supply
Lowest Price $150.99 $149.99 $152.98 $133.57
Rating
(4.7 Average, 56 Ratings)
(4.8 Average, 33 Ratings)
(4.9 Average, 40 Ratings)
(4.8 Average, 15 Ratings)
Manufacturer Corsair Corsair SeaSonic XFX
Model HX850
Part # CMPSU-850HX
(or) CMPSU-850HXUK
RM1000
(or) CP-9020062-UK
X-850
(or) SS-850KM3
(or) SS-850KM-F3
P1-850B-BEFX
Type ATX12V / EPS12V ATX12V / EPS12V ATX12V / EPS12V ATX12V / EPS12V
Wattage 850 Watts 1000 Watts 850 Watts 850 Watts
Fans 1 1 1 1
Modular Semi Full Full Full
Efficiency Certification 80+ Gold 80+ Gold 80+ Gold 80+ Gold
Efficiency < 92% <90%
Output +3.3V@25A, +5V25A, +12V@70A, -12V@0.8A, +5VSB@3A +3.3V@25A, +5V@25A, +12V@70A, -12V@0.5A, +5Vsb@3A +3.3V@25A, +5V@25A, +12V@70A, -12V@0.8A, +5VSB@3A