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be quiet! Pure Power 12 550W vs Lian Li SP750: Comparison
be quiet! Pure Power 12 550W vs Lian Li SP750: the wattage difference
On wattage the spread is 27%, be quiet! Pure Power 12 550W 550 W against Lian Li SP750 750 W, so Lian Li SP750 takes it. be quiet! Pure Power 12 550W also leads on warranty, 10 years on the be quiet! Pure Power 12 550W versus 5 years on the Lian Li SP750. Lian Li SP750 also leads on pcie 8-pin connectors, 2 on the be quiet! Pure Power 12 550W versus 3 on the Lian Li SP750.
Which should you buy, be quiet! Pure Power 12 550W or Lian Li SP750?
The be quiet! Pure Power 12 550W is the one to take for Quiet mainstream gaming builds and RTX 4060/RX 7600-class GPUs, though it is not the pick for anyone wanting fully modular cables and high-end or multi-GPU builds. The Lian Li SP750 suits Lian Li SFF case builds (A4-H2O and similar) and RTX 4070/4080-class GPUs in small cases, though it is the wrong buy for anyone chasing Platinum-or-better efficiency and standard ATX tower builds. Our rating of the be quiet! Pure Power 12 550W (7.8/10): A quiet, Gold-rated 550W unit that's the right call for mainstream builds that don't need full modularity. Our rating of the Lian Li SP750 (7.9/10): A solid SFX Gold option for Lian Li SFF builds, though the Corsair SF750 beats it on efficiency at a similar price.
Which is cheaper, be quiet! Pure Power 12 550W or Lian Li SP750?
The Lian Li SP750 asks 100% more, $150 against $74.99 for the be quiet! Pure Power 12 550W.
Frequently asked questions
Do the be quiet! Pure Power 12 550W and Lian Li SP750 differ on fan size?
Yes. Fan Size reads 120 mm on the be quiet! Pure Power 12 550W versus 92 mm on the Lian Li SP750.
Is the 80 PLUS Rating the same on the be quiet! Pure Power 12 550W and Lian Li SP750?
It is. Both are listed at Gold, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- be quiet! Pure Power 12 550W
- be quiet!
- Lian Li SP750
- Lian Li
Wattage
- be quiet! Pure Power 12 550W
- 550 W-27%
- Lian Li SP750
- 750 WBest
80 PLUS Rating
- be quiet! Pure Power 12 550W
- Gold
- Lian Li SP750
- Gold
Model Number
- be quiet! Pure Power 12 550W
- Pure Power 12 550W
- Lian Li SP750
- SP750
ATX Standard
- be quiet! Pure Power 12 550W
- ATX 3.1
- Lian Li SP750
- ATX 2.x
Form Factor
- be quiet! Pure Power 12 550W
- ATX
- Lian Li SP750
- SFX
12V-2x6 Connectors
- be quiet! Pure Power 12 550W
- 1
- Lian Li SP750
- 0
Zero-RPM Mode
- be quiet! Pure Power 12 550W
- No
- Lian Li SP750
- Yes
Sleeved Cables
- be quiet! Pure Power 12 550W
- Yes
- Lian Li SP750
- Yes
PCIe 8-pin Connectors
- be quiet! Pure Power 12 550W
- 2-33%
- Lian Li SP750
- 3
Connector Count
- be quiet! Pure Power 12 550W
- 1x 24-pin ATX, 1x EPS 4+4, 1x 12V-2x6, 2x PCIe 6+2-pin, 5x SATA, 1x Molex (all fixed)
- Lian Li SP750
- 1x 24-pin ATX, 2x EPS 4+4, 3x PCIe 6+2-pin, 8x SATA, 4x Molex
Fan Size
- be quiet! Pure Power 12 550W
- 120 mm
- Lian Li SP750
- 92 mm
Fan Model / Bearing
- be quiet! Pure Power 12 550W
- 120mm be quiet! fan, rifle bearing
- Lian Li SP750
- 92mm fluid dynamic bearing
OEM / Platform
- be quiet! Pure Power 12 550W
- HEC
- Lian Li SP750
- Helly
EPS 8-pin Connectors
- be quiet! Pure Power 12 550W
- 1
- Lian Li SP750
- 2
SATA Connectors
- be quiet! Pure Power 12 550W
- 5
- Lian Li SP750
- 8
Molex Connectors
- be quiet! Pure Power 12 550W
- 1
- Lian Li SP750
- 4
Cable Lengths
- be quiet! Pure Power 12 550W
- 24-pin 600mm, max cable length 550mm
- Lian Li SP750
- 24-pin 400mm, EPS 400mm, PCIe 400mm, SATA 400-550mm
Length
- be quiet! Pure Power 12 550W
- 160 mm
- Lian Li SP750
- 100 mm
Colour
- be quiet! Pure Power 12 550W
- Black
- Lian Li SP750
- Black
MTBF
- be quiet! Pure Power 12 550W
- 100000 hours
- Lian Li SP750
- 100000 hours
Modularity
- be quiet! Pure Power 12 550W
- Non-Modular
- Lian Li SP750
- Fully Modular
Protections
- be quiet! Pure Power 12 550W
- OTP, OCP, OPP, SCP, OVP, UVP, SIP
- Lian Li SP750
- OCP, OPP, UVP, OVP, OTP, SCP
Price
- be quiet! Pure Power 12 550W
- 74.99 USD
- Lian Li SP750
- 149.99 USD
Warranty
- be quiet! Pure Power 12 550W
- 10 yearsBest
- Lian Li SP750
- 5 years-50%
Which one should you pick?
Choose be quiet! Pure Power 12 550W if you want the higher MTBF (100000 hours vs 100000 hours) and the higher warranty (10 years vs 5 years).
Choose Lian Li SP750 if you want the higher wattage (750 W vs 550 W) and the higher PCIe 8-pin connectors (3 vs 2).
Price comparison
| Retailer | be quiet! Pure Power 12 550W | Lian Li SP750 |
|---|---|---|
| Amazon | $74.99 View on Amazon | $149.99 View on Amazon |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
be quiet! Pure Power 12 550W
7.8 / 10 Expert Rating
A quiet, Gold-rated 550W unit that's the right call for mainstream builds that don't need full modularity.
Lian Li SP750
7.9 / 10 Expert Rating
A solid SFX Gold option for Lian Li SFF builds, though the Corsair SF750 beats it on efficiency at a similar price.




