Product comparison · 2 power supply units

Chieftec BPS-550S2 power supply unit vs Chieftec GPA-450B8 power supply unit

25specifications compared
12differ
13identical
21known for one product only

Key differences

Total power
- BPS-550S2 power supply unit:550 W
- GPA-450B8 power supply unit:450 W
AC input voltage
- BPS-550S2 power supply unit:100 - 240 V
- GPA-450B8 power supply unit:230 V
Combined power (+3.3V)
- BPS-550S2 power supply unit:120 W
- GPA-450B8 power supply unit:110 W
Combined power (+5V)
- BPS-550S2 power supply unit:120 W
- GPA-450B8 power supply unit:110 W
Max output current (+12V1)
- BPS-550S2 power supply unit:42 A
- GPA-450B8 power supply unit:38 A
Max output current (+5V)
- BPS-550S2 power supply unit:15 A
- GPA-450B8 power supply unit:18 A
Max output current (-12V)
- BPS-550S2 power supply unit:0.8 A
- GPA-450B8 power supply unit:0.3 A
Max output current (+5Vsb)
- BPS-550S2 power supply unit:3 A
- GPA-450B8 power supply unit:2.5 A

Side by side

Differences highlightedShow differences only

Comparison of BPS-550S2, GPA-450B8
46 specifications	A Chieftec BPS-550S2 power supply unit Model BPS-550S2 View product	B Chieftec GPA-450B8 power supply unit Model GPA-450B8 View product
Power8 differ
Total powerDiffers	550 W	450 W
AC input voltageDiffers	100 - 240 V	230 V
Maximum input current (@110V)Known for one	+12V1,+3.3V,+5V,+5Vsb	Unknown — not stated by the source
Power factorKnown for one	0.9	Unknown — not stated by the source
Combined power (+3.3V)Differs	120 W	110 W
Combined power (+12V)Known for one	504 W	Unknown — not stated by the source
Combined power (+5V)Differs	120 W	110 W
Max output current (+12V1)Differs	42 A	38 A
Max output current (+5V)Differs	15 A	18 A
Max output current (-12V)Differs	0.8 A	0.3 A
Max output current (+5Vsb)Differs	3 A	2.5 A
EfficiencyKnown for one	85%	Unknown — not stated by the source
Combined power (-12V)Known for one	Unknown — not stated by the source	3.6 W
Combined power (+5Vsb)Known for one	Unknown — not stated by the source	12.5 W
Max output current (+3.3V)Known for one	Unknown — not stated by the source	18 A
Ports & interfaces3 differ
Number of SATA power connectorsDiffers	6	3
Peripheral (Molex) power connectors (4-pin)Differs	3	2
EPS power connector (8-pin)Known for one	Yes	Unknown — not stated by the source
PCI Express power connectors (6+2 pin)Differs	2	1
ATX Power connector (24-pin)Known for one	No	Unknown — not stated by the source
ATX Power connector (20-pin)Known for one	No	Unknown — not stated by the source
ATX power connector (20+4 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
CPU power connector (4+4 pin)Known for one	Unknown — not stated by the source	Yes
Performanceidentical
80 PLUS certificationKnown for one	80 PLUS Bronze	Unknown — not stated by the source
ATX versionKnown for one	2.3	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	100000 h	Unknown — not stated by the source
Design1 differ
Product colourDiffers	Grey	Metallic
Number of fansKnown for one	1 fan(s)	Unknown — not stated by the source
Fan locationKnown for one	Top	Unknown — not stated by the source
IlluminationKnown for one	No	Unknown — not stated by the source
On/off switchKnown for one	Yes	Unknown — not stated by the source

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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