Product comparison · 2 power supply units

be quiet! SFX Power vs Chieftec BPS-450S power supply unit

12specifications compared
6differ
6identical
39known for one product only

Key differences

Total power
- SFX Power:350 W
- BPS-450S power supply unit:450 W
Input current
- SFX Power:3 - 5.5 A
- BPS-450S power supply unit:3/6 A
Number of SATA power connectors
- SFX Power:2
- BPS-450S power supply unit:4
Power supply unit (PSU) form factor
- SFX Power:SFX
- BPS-450S power supply unit:ATX
Fan diameter
- SFX Power:8 cm
- BPS-450S power supply unit:12 cm

Side by side

Differences highlightedShow differences only

Comparison of SFX Power, BPS-450S
51 specifications	A be quiet! SFX Power View product	B Chieftec BPS-450S power supply unit Model BPS-450S View product
Power3 differ
Total powerDiffers	350 W	450 W
Input currentDiffers	3 - 5.5 A	3/6 A
Maximum input current (@110V)Known for one	+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V	Unknown — not stated by the source
Power factorKnown for one	0.9	Unknown — not stated by the source
Power Factor Correction (PFC) typeKnown for one	Active	Unknown — not stated by the source
Combined power (+3.3V)Known for one	125 W	Unknown — not stated by the source
Combined power (+12V)Known for one	300 W	Unknown — not stated by the source
Combined power (+5V)Known for one	125 W	Unknown — not stated by the source
Max output current (+3.3V)Known for one	20 A	Unknown — not stated by the source
Max output current (+12V)Known for one	25 A	Unknown — not stated by the source
Max output current (+12V1)Known for one	14 A	Unknown — not stated by the source
Max output current (+12V2)Known for one	16 A	Unknown — not stated by the source
Max output current (+5V)Known for one	22 A	Unknown — not stated by the source
Max output current (-12V)Known for one	0.5 A	Unknown — not stated by the source
Max output current (+5Vsb)Known for one	2.5 A	Unknown — not stated by the source
EfficiencyKnown for one	86%	Unknown — not stated by the source
Hold timeKnown for one	17 ms	Unknown — not stated by the source
Power protection featuresDiffers	Over current, Over power, Over voltage, Short circuit, Under voltage	Over current, Over voltage, Short circuit, Under voltage, Overload
Ports & interfaces1 differ
Motherboard power connectorKnown for one	20+4 pin ATX	Unknown — not stated by the source
Number of SATA power connectorsDiffers	2	4
CPU P4 connector (4-pin)Known for one	1	Unknown — not stated by the source
EPS power connector (8-pin)Known for one	Unknown — not stated by the source	Yes
ATX Power connector (24-pin)Known for one	Unknown — not stated by the source	Yes
Cabling typeKnown for one	Unknown — not stated by the source	Non-Modular
Performance1 differ
PurposeKnown for one	PC	Unknown — not stated by the source
Power supply unit (PSU) form factorDiffers	SFX	ATX
80 PLUS certificationKnown for one	80 PLUS	Unknown — not stated by the source
Bearing technologyKnown for one	Rifle	Unknown — not stated by the source
Design1 differ
Product colourKnown for one	Black	Unknown — not stated by the source
Cooling typeKnown for one	Active	Unknown — not stated by the source
Fan diameterDiffers	8 cm	12 cm
Number of fansKnown for one	1 fan(s)	Unknown — not stated by the source
Fan speedKnown for one	4000	Unknown — not stated by the source
On/off switchKnown for one	Yes	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	10 - 50 °C	Unknown — not stated by the source
Certificatesidentical
Compliance certificatesKnown for one	RoHS	Unknown — not stated by the source
CertificationKnown for one	CE, CB, TÜV, Nemko (N), Semko (S), Fimko (FI), Demko (D)	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	125 mm	Unknown — not stated by the source
DepthKnown for one	100 mm	Unknown — not stated by the source
HeightKnown for one	63.5 mm	Unknown — not stated by the source
WeightKnown for one	1 kg	Unknown — not stated by the source
Packaging dataidentical
Package weightKnown for one	1.27 kg	Unknown — not stated by the source
Technical detailsidentical
Sustainability certificatesKnown for one	ENERGY STAR	Unknown — not stated by the source
Other featuresidentical
Package dimensions (WxDxH)Known for one	199 x 195 x 75 mm	Unknown — not stated by the source
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	150 x 140 x 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.

More power supply unit comparisons

All power supply unit comparisons