Product comparison · 2 power supply units

be quiet! Pure Power L7 vs be quiet! SFX Power

43specifications compared
25differ
18identical
11known for one product only

Key differences

Total power
- Pure Power L7:530 W
- SFX Power:350 W
Input current
- Pure Power L7:7 - 3.5 A
- SFX Power:3 - 5.5 A
Power factor
- Pure Power L7:0.99
- SFX Power:0.9
Combined power (+3.3V)
- Pure Power L7:130 W
- SFX Power:125 W
Combined power (+12V)
- Pure Power L7:420 W
- SFX Power:300 W
Combined power (+5V)
- Pure Power L7:130 W
- SFX Power:125 W
Max output current (+3.3V)
- Pure Power L7:24 A
- SFX Power:20 A
Max output current (+12V)
- Pure Power L7:35 A
- SFX Power:25 A

Side by side

Differences highlightedShow differences only

Comparison of Pure Power L7, SFX Power
54 specifications	A be quiet! Pure Power L7 View product	B be quiet! SFX Power View product
Power13 differ
Total powerDiffers	530 W	350 W
Peak powerKnown for one	580 W	Unknown — not stated by the source
AC input voltage	100 - 240 V	100 - 240 V
AC input frequency	50 - 60 Hz	50 - 60 Hz
Input currentDiffers	7 - 3.5 A	3 - 5.5 A
Maximum input current (@110V)	+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V	+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V
Power factorDiffers	0.99	0.9
Power Factor Correction (PFC) type	Active	Active
Combined power (+3.3V)Differs	130 W	125 W
Combined power (+12V)Differs	420 W	300 W
Combined power (+5V)Differs	130 W	125 W
Combined power (-12V)Known for one	3.6 W	Unknown — not stated by the source
Combined power (+5Vsb)Known for one	15 W	Unknown — not stated by the source
Max output current (+3.3V)Differs	24 A	20 A
Max output current (+12V)Differs	35 A	25 A
Max output current (+12V1)Differs	22 A	14 A
Max output current (+12V2)Differs	22 A	16 A
Max output current (+5V)Differs	24 A	22 A
Max output current (-12V)Differs	0.3 A	0.5 A
Max output current (+5Vsb)	2.5 A	2.5 A
Efficiency	86%	86%
Power protection featuresDiffers	Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage	Over current, Over power, Over voltage, Short circuit, Under voltage
Hold timeKnown for one	Unknown — not stated by the source	17 ms
Ports & interfaces2 differ
Motherboard power connector	20+4 pin ATX	20+4 pin ATX
Number of SATA power connectorsDiffers	5	2
Peripheral (Molex) power connectors (4-pin)Differs	4	3
PCI Express power connectors (6+2 pin)Known for one	2	Unknown — not stated by the source
CPU P4 connector (4-pin)	1	1
Floppy drive power connector	1	1
Cabling typeKnown for one	Non-Modular	Unknown — not stated by the source
PCI Express power connectors (6-pin)Known for one	Unknown — not stated by the source	1
Performance1 differ
Purpose	PC	PC
Power supply unit (PSU) form factorDiffers	ATX	SFX
80 PLUS certification	80 PLUS	80 PLUS
ATX versionKnown for one	2.3	Unknown — not stated by the source
Noise levelKnown for one	26 dB	Unknown — not stated by the source
Mean time between failures (MTBF)	100000 h	100000 h
Bearing technologyKnown for one	Unknown — not stated by the source	Rifle
Design2 differ
Product colour	Black	Black
Cooling type	Active	Active
Fan diameterDiffers	12 cm	8 cm
Number of fans	1 fan(s)	1 fan(s)
Fan speedDiffers	1650	4000
On/off switchKnown for one	Unknown — not stated by the source	Yes
Operational conditions1 differ
Operating temperature (T-T)Differs	0 - 40 °C	10 - 50 °C
Certificatesidentical
Compliance certificates	RoHS	RoHS
Certification	CE, CB, TÜV, Nemko (N), Semko (S), Fimko (FI), Demko (D)	CE, CB, TÜV, Nemko (N), Semko (S), Fimko (FI), Demko (D)
Weight & dimensions4 differ
WidthDiffers	140 mm	125 mm
DepthDiffers	150 mm	100 mm
HeightDiffers	86 mm	63.5 mm
WeightDiffers	1.75 kg	1 kg
Packaging data1 differ
Package weightDiffers	2.05 kg	1.27 kg
Technical detailsidentical
Sustainability certificates	ENERGY STAR	ENERGY STAR
Other features1 differ
Package dimensions (WxDxH)Differs	185 x 145 x 163 mm	199 x 195 x 75 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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