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Corsair RM750X V2 750W vs. Corsair RM850X V2 850W + 6
ATX
1
1
1
1
1
ATX12V
2
1
1
1
1
1
1
EPS12V
2
1
1
2
1
2
1
Fan connection
0
0
0
0
0
7
Power connections for PCI-Express
4
6
2
6
4
8
4
Power Connections for the 3.5 / 5.25 (Molex)
8
8
4
8
7
12
0
Power connections for the floppy drive
1
1
1
2
2
1
0
Power connectors for SATA
9
10
6
10
8
12
6
8
Dimensions (WxHxD)
Depth
160 mm
160 mm
140 mm
180 mm
180 mm
180 mm
140 mm
140 mm
Height
86 mm
86 mm
86 mm
86 mm
86 mm
86 mm
86 mm
86 mm
Width
150 mm
150 mm
150 mm
150 mm
150 mm
150 mm
150 mm
150 mm
Features
PFC (Power Factor Correction)
PFC (Power Factor Correction)
PFC (Power Factor Correction)
PFC (Power Factor Correction)
PFC (Power Factor Correction)
PFC (Power Factor Correction)
PFC (Power Factor Correction)
PFC (Power Factor Correction)
80-plus certification
Gold
Gold
Gold
Gold
Gold
Gold
Standard
Gold
Active cooling (fan)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Bearing type
Ball bearing
Ball bearing
Plain bearing
SSO bearing
Plain bearing
Fan size
135 mm
135 mm
120 mm
140 mm
140 mm
135 mm
120 mm
120 mm
Number of fans
1
1
1
1
1
1
1
Semi-passive (passive at low efficiency)
Yes
Yes
No
Yes
Yes
Yes
No
Temperature-controlled fan
Yes
Yes
Yes
Yes
Yes
Yes
Cable socks
Yes
Yes
Yes
No
No
Yes
Yes
Capacity
750 W
850 W
650 W
850 W
750 W
1000 W
700 W
750 W
Current -12V
0.8 A
0.8 A
0.8 A
0.8 A
0.8 A
0.8 A
0.8 A
Current 12V1
62.5 A
70.8 A
62 A
Current 12V2
0 A
0 A
0 A
Current 12V3
0 A
0 A
0 A
Current 12V4
0 A
0 A
0 A
Current 12V5
0 A
0 A
0 A
Current 3.3V
25 A
25 A
25 A
25 A
25 A
25 A
20 A
25 A
Current 5V
25 A
25 A
25 A
25 A
25 A
25 A
20 A
25 A
Current 5Vsb
3 A
3 A
3 A
3 A
3 A
3 A
3 A
3 A
Current 12V6
0 A
0 A
0 A
Current 12V7
0 A
0 A
0 A
Current 12V8
0 A
0 A
0 A
Efficiency
93 %
93 %
90 %
92 %
91.18 %
90 %
80 %
90 %
Format (PSU)
ATX
ATX
ATX
ATX
ATX
ATX
ATX
ATX
EPS12V
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Version (EPS)
EPS12V 2.92
EPS12V 2.92
EPS12V 2.92
EPS12V 2.92
EPS12V 2.92
EPS12V 2.92
EPS12V 2.92
Version (ATX)
ATX12V 2.4
ATX12V 2.4
ATX12V 2.4
ATX12V 2.4
ATX12V 2.4
ATX12V 2.4
ATX12V 2.4
Modular Type
Fully Modular
Fully Modular
Semi Modular
Fully Modular
Fully Modular
Fully Modular
Not modular
Semi Modular
Modular
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Number 12V lines
1
1
1
1
Total amperage 12V
62.5 A
70.8 A
51 A
70.8 A
62.5 A
83.3 A
58 A
62 A
Release year
2018
2018
2017
2013
2013
2015
2017