Product comparison · 2 power supply units

GIGABYTE P650B power supply unit vs GIGABYTE PW400 power supply unit

36specifications compared
16differ
20identical
13known for one product only

Key differences

Total power
- P650B power supply unit:650 W
- PW400 power supply unit:400 W
Input current
- P650B power supply unit:9, 4 A
- PW400 power supply unit:8 A
Combined power (+3.3V)
- P650B power supply unit:108 W
- PW400 power supply unit:103 W
Combined power (+12V)
- P650B power supply unit:648 W
- PW400 power supply unit:360 W
Combined power (+5V)
- P650B power supply unit:108 W
- PW400 power supply unit:103 W
Max output current (+3.3V)
- P650B power supply unit:18 A
- PW400 power supply unit:21 A
Max output current (+12V)
- P650B power supply unit:0.3 A
- PW400 power supply unit:30 A
Efficiency
- P650B power supply unit:85%
- PW400 power supply unit:84%

Side by side

Differences highlightedShow differences only

Comparison of P650B, PW400
49 specifications	A GIGABYTE P650B power supply unit Model P650B View product	B GIGABYTE PW400 power supply unit Model PW400 View product
Power9 differ
Total powerDiffers	650 W	400 W
Input currentDiffers	9, 4 A	8 A
Combined power (+3.3V)Differs	108 W	103 W
Combined power (+12V)Differs	648 W	360 W
Combined power (+5V)Differs	108 W	103 W
Max output current (+3.3V)Differs	18 A	21 A
Max output current (+12V)Differs	0.3 A	30 A
EfficiencyDiffers	85%	84%
Power protection featuresDiffers	Over power, Over voltage, Overcharge, Short circuit, Under voltage	Over current, Over power, Over voltage, Short circuit, Under voltage
Ports & interfaces3 differ
Motherboard power cable lengthKnown for one	Unknown — not stated by the source	55 cm
Number of SATA power connectorsDiffers	6	3
SATA power cable lengthKnown for one	Unknown — not stated by the source	150,450 mm
Peripheral (Molex) power connectors (4-pin)Differs	3	2
Peripheral (Molex) power cable lengthKnown for one	Unknown — not stated by the source	150,500 mm
PCI Express power connectors (6+2 pin)Differs	4	1
PCI Express power cable lengthKnown for one	Unknown — not stated by the source	50 cm
CPU power cable lengthKnown for one	Unknown — not stated by the source	55 cm
ATX power connector (20+4 pin)Known for one	Unknown — not stated by the source	Yes
ATX Power connector (24-pin)Known for one	Yes	Unknown — not stated by the source
Floppy disk drive connectorKnown for one	Yes	Unknown — not stated by the source
PCI Express connectorKnown for one	Yes	Unknown — not stated by the source
Performance1 differ
80 PLUS certificationDiffers	80 PLUS Bronze	80 PLUS
ATX versionKnown for one	2.31	Unknown — not stated by the source
Designidentical
Cooling typeKnown for one	Unknown — not stated by the source	Active
On/off switchKnown for one	Unknown — not stated by the source	Yes
Certificates1 differ
CertificationDiffers	CE/CCC/BSMI/KCC/EAC/UL/TUV/RCM/FCC/PSE	CE/CCC/BSMI/KCC/EAC/UL/TUV/RCM/FCC
Weight & dimensions2 differ
WidthDiffers	140 mm	150 mm
DepthDiffers	150 mm	140 mm
Packaging dataidentical
ManualKnown for one	Unknown — not stated by the source	Yes

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

More power supply unit comparisons

All power supply unit comparisons