Product comparison · 2 power supply units

be quiet! Power Zone vs be quiet! Pure Power L8

49specifications compared
29differ
20identical
9known for one product only

Key differences

Total power
- Power Zone:750 W
- Pure Power L8:300 W
Peak power
- Power Zone:800 W
- Pure Power L8:350 W
Input current
- Power Zone:9 A
- Pure Power L8:5 A
Power factor
- Power Zone:0.99
- Pure Power L8:0.97
Combined power (+3.3V)
- Power Zone:150 W
- Pure Power L8:103 W
Combined power (+12V)
- Power Zone:744 W
- Pure Power L8:276 W
Combined power (+5V)
- Power Zone:150 W
- Pure Power L8:103 W
Combined power (+5Vsb)
- Power Zone:15 W
- Pure Power L8:12.5 W

Side by side

Differences highlightedShow differences only

Comparison of Power Zone, Pure Power L8
58 specifications	A be quiet! Power Zone View product	B be quiet! Pure Power L8 View product
Power13 differ
Total powerDiffers	750 W	300 W
Peak powerDiffers	800 W	350 W
AC input voltage	100 - 240 V	100 - 240 V
AC input frequency	50 - 60 Hz	50 - 60 Hz
Input currentDiffers	9 A	5 A
Maximum input current (@110V)Known for one	+12V,+3.3V,+5V,+5Vsb,-12V	Unknown — not stated by the source
Power factorDiffers	0.99	0.97
Power Factor Correction (PFC) type	Active	Active
Combined power (+3.3V)Differs	150 W	103 W
Combined power (+12V)Differs	744 W	276 W
Combined power (+5V)Differs	150 W	103 W
Combined power (-12V)	3.6 W	3.6 W
Combined power (+5Vsb)Differs	15 W	12.5 W
Max output current (+3.3V)Differs	25 A	21 A
Max output current (+12V)Known for one	62 A	Unknown — not stated by the source
Max output current (+5V)Differs	25 A	15 A
Max output current (-12V)	0.3 A	0.3 A
Max output current (+5Vsb)Differs	3 A	2.5 A
EfficiencyDiffers	90%	88%
Hold timeDiffers	23 ms	16 ms
Power protection features	Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage	Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Max output current (+12V1)Known for one	Unknown — not stated by the source	23 A
Max output current (+12V2)Known for one	Unknown — not stated by the source	23 A
Ports & interfaces4 differ
Motherboard power connector	20+4 pin ATX	20+4 pin ATX
Number of SATA power connectorsDiffers	8	3
Peripheral (Molex) power connectors (4-pin)Differs	4	2
PCI Express power connectors (6+2 pin)Differs	4	1
CPU power connector (4+4 pin)	Yes	Yes
Floppy drive power connector	1	1
Cabling typeDiffers	Fully-Modular	Non-Modular
Performance1 differ
Purpose	PC	PC
Power supply unit (PSU) form factor	ATX	ATX
80 PLUS certification	80 PLUS Bronze	80 PLUS Bronze
ATX version	2.4	2.4
EPS version	2.92	2.92
Noise levelDiffers	34.9 dB	16.6 dB
Bearing technologyKnown for one	FDB	Unknown — not stated by the source
Mean time between failures (MTBF)	100000 h	100000 h
Design1 differ
Product colour	Black	Black
Cooling typeKnown for one	Active	Unknown — not stated by the source
Fan diameterDiffers	13.5 cm	12 cm
Number of fansKnown for one	1 fan(s)	Unknown — not stated by the source
Fan speedKnown for one	2600	Unknown — not stated by the source
Certificates1 differ
Compliance certificates	RoHS	RoHS
CertificationDiffers	CE, CB, TÜV, Semko (S), FCC, cTUVus, c-tick, BSMI	CE, CB, TUV, WEEE
Weight & dimensions2 differ
Width	150 mm	150 mm
DepthDiffers	175 mm	150 mm
Height	86 mm	86 mm
WeightDiffers	1.87 kg	1.93 kg
Packaging data4 differ
ManualKnown for one	Yes	Unknown — not stated by the source
Package widthDiffers	248 mm	105 mm
Package depthDiffers	102 mm	230 mm
Package heightDiffers	328 mm	280 mm
Package weightDiffers	2.36 kg	2.32 kg
Technical detailsidentical
Sustainability certificates	ENERGY STAR	ENERGY STAR
Other features3 differ
Noise level (silent mode, <30%)Differs	13.6 dB	13.4 dB
Noise level (quiet mode, 50%)Differs	17.4 dB	13.8 dB
Noise level (full-load mode, 100%)Differs	34.9 dB	16.6 dB

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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