Product comparison · 2 power supply units

Chieftec GPS-450A8 power supply unit vs Chieftec GPS-550A8 power supply unit

41specifications compared
13differ
28identical
6known for one product only

Key differences

Total power
- GPS-450A8 power supply unit:450 W
- GPS-550A8 power supply unit:550 W
Combined power (+3.3V)
- GPS-450A8 power supply unit:120 W
- GPS-550A8 power supply unit:110 W
Combined power (+12V)
- GPS-450A8 power supply unit:360 W
- GPS-550A8 power supply unit:504 W
Combined power (+5V)
- GPS-450A8 power supply unit:120 W
- GPS-550A8 power supply unit:110 W
Max output current (+3.3V)
- GPS-450A8 power supply unit:22 A
- GPS-550A8 power supply unit:18 A
Max output current (+12V1)
- GPS-450A8 power supply unit:21 A
- GPS-550A8 power supply unit:42 A
Max output current (+12V2)
- GPS-450A8 power supply unit:18 A
- GPS-550A8 power supply unit:42 A
Number of SATA power connectors
- GPS-450A8 power supply unit:3
- GPS-550A8 power supply unit:4

Side by side

Differences highlightedShow differences only

Comparison of GPS-450A8, GPS-550A8
47 specifications	A Chieftec GPS-450A8 power supply unit Model GPS-450A8 View product	B Chieftec GPS-550A8 power supply unit Model GPS-550A8 View product
Power8 differ
Total powerDiffers	450 W	550 W
AC input voltage	230 V	230 V
AC input frequency	47 - 63 Hz	47 - 63 Hz
Maximum input current (@110V)Differs	+12V1,+12V2,+12V3,+12V4,+3.3V,+5V,+5Vsb,-12V	+12V,+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V
Power factor	0.9	0.9
Power Factor Correction (PFC) type	Active	Active
Combined power (+3.3V)Differs	120 W	110 W
Combined power (+12V)Differs	360 W	504 W
Combined power (+5V)Differs	120 W	110 W
Combined power (-12V)	3.6 W	3.6 W
Combined power (+5Vsb)	12.5 W	12.5 W
Max output current (+3.3V)Differs	22 A	18 A
Max output current (+12V1)Differs	21 A	42 A
Max output current (+12V2)Differs	18 A	42 A
Max output current (+5V)	18 A	18 A
Max output current (-12V)	0.3 A	0.3 A
Max output current (+5Vsb)	2.5 A	2.5 A
Efficiency	80%	80%
Power protection features	Over power, Over voltage, Short circuit, Under voltage	Over power, Over voltage, Short circuit, Under voltage
Ports & interfaces3 differ
Motherboard power connector	20+4 pin ATX	20+4 pin ATX
Number of SATA power connectorsDiffers	3	4
Peripheral (Molex) power connectors (4-pin)	2	2
EPS power connector (8-pin)Differs	No	Yes
PCI Express power connectors (6+2 pin)Differs	1	2
ATX Power connector (24-pin)Known for one	Unknown — not stated by the source	No
ATX Power connector (20-pin)Known for one	Unknown — not stated by the source	No
ATX power connector (20+4 pin)Known for one	Unknown — not stated by the source	Yes
Floppy disk drive connector	Yes	Yes
Floppy drive power connector	1	1
PCI Express connector	Yes	Yes
Cabling type	Non-Modular	Non-Modular
PCI Express power connectors (6-pin)Known for one	0	Unknown — not stated by the source
Performanceidentical
Purpose	PC	PC
Power supply unit (PSU) form factor	PS/2	PS/2
ATX version	2.3	2.3
Designidentical
Product colour	Black	Black
Cooling type	Active	Active
Fan diameter	12 cm	12 cm
Number of fans	1 fan(s)	1 fan(s)
Fan locationKnown for one	Unknown — not stated by the source	Top
Illumination	No	No
LED indicators	No	No
On/off switchKnown for one	Yes	Unknown — not stated by the source
Certificatesidentical
Compliance certificates	RoHS	RoHS
Weight & dimensions2 differ
WidthDiffers	140 mm	150 mm
DepthDiffers	150 mm	140 mm
Height	87 mm	87 mm

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.

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