Product comparison · 2 power supply units

be quiet! Pure Power L8 vs be quiet! System Power 7

43specifications compared
16differ
27identical
16known for one product only

Key differences

Input current
- Pure Power L8:5 A
- System Power 7:2/4 A
Power factor
- Pure Power L8:0.97
- System Power 7:0.992
Combined power (+12V)
- Pure Power L8:276 W
- System Power 7:288 W
Max output current (+12V1)
- Pure Power L8:23 A
- System Power 7:18 A
Max output current (+12V2)
- Pure Power L8:23 A
- System Power 7:18 A
Efficiency
- Pure Power L8:88%
- System Power 7:87%
Hold time
- Pure Power L8:16 ms
- System Power 7:18.6 ms
Number of SATA power connectors
- Pure Power L8:3
- System Power 7:4

Side by side

Differences highlightedShow differences only

Comparison of Pure Power L8, System Power 7
59 specifications	A be quiet! Pure Power L8 View product	B be quiet! System Power 7 View product
Power7 differ
Input currentDiffers	5 A	2/4 A
Power factorDiffers	0.97	0.992
Combined power (+12V)Differs	276 W	288 W
Combined power (-12V)Known for one	3.6 W	Unknown — not stated by the source
Combined power (+5Vsb)Known for one	12.5 W	Unknown — not stated by the source
Max output current (+12V1)Differs	23 A	18 A
Max output current (+12V2)Differs	23 A	18 A
EfficiencyDiffers	88%	87%
Hold timeDiffers	16 ms	18.6 ms
Maximum input current (@110V)Known for one	Unknown — not stated by the source	+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V
Max output current (+12V)Known for one	Unknown — not stated by the source	24 A
Ports & interfaces1 differ
Number of SATA power connectorsDiffers	3	4
PCI Express power connectors (6+2 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	No
Performance2 differ
ATX versionDiffers	2.4	2.31
EPS versionKnown for one	2.92	Unknown — not stated by the source
Noise levelDiffers	16.6 dB	20.7 dB
Designidentical
Cooling typeKnown for one	Unknown — not stated by the source	Active
Number of fansKnown for one	Unknown — not stated by the source	1 fan(s)
Fan speedKnown for one	Unknown — not stated by the source	1021
On/off switchKnown for one	Unknown — not stated by the source	Yes
Certificates1 differ
CertificationDiffers	CE, CB, TUV, WEEE	CE, CB, Tüv, Semko (S), FCC, cTUVus
Weight & dimensions1 differ
DepthDiffers	150 mm	140 mm
WeightKnown for one	1.93 kg	Unknown — not stated by the source
Packaging data1 differ
Package widthKnown for one	105 mm	Unknown — not stated by the source
Package depthKnown for one	230 mm	Unknown — not stated by the source
Package heightKnown for one	280 mm	Unknown — not stated by the source
Package weightDiffers	2.32 kg	1.68 kg
Other features3 differ
Noise level (silent mode, <30%)Differs	13.4 dB	13.9 dB
Noise level (quiet mode, 50%)Differs	13.8 dB	14.7 dB
Noise level (full-load mode, 100%)Differs	16.6 dB	20.7 dB
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 40 °C

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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