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be quiet! Pure Power 12 550W vs Seasonic Core GM-650: Comparison
be quiet! Pure Power 12 550W vs Seasonic Core GM-650 wattage compared
The gap that matters here is wattage: be quiet! Pure Power 12 550W 550 W against Seasonic Core GM-650 650 W, which puts Seasonic Core GM-650 15% ahead. be quiet! Pure Power 12 550W also leads on warranty, 10 years on the be quiet! Pure Power 12 550W versus 7 years on the Seasonic Core GM-650.
Which should you buy, be quiet! Pure Power 12 550W or Seasonic Core GM-650?
Buy the be quiet! Pure Power 12 550W for Quiet mainstream gaming builds and RTX 4060/RX 7600-class GPUs, though it is the wrong buy for anyone wanting fully modular cables and high-end or multi-GPU builds. The Seasonic Core GM-650 is the one to take for Budget-Gold mainstream gaming builds and RTX 4060/RX 7600-class GPUs, though it is not built for anyone wanting full modularity and ATX 3.0/PCIe 5.0 native connectors. 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 Seasonic Core GM-650 (7.6/10): the cheapest legitimate route to 80 PLUS Gold in Seasonic's lineup, good for mainstream builds that don't need full modularity.
Which is cheaper, be quiet! Pure Power 12 550W or Seasonic Core GM-650?
At the last price check the be quiet! Pure Power 12 550W was $74.99 and the Seasonic Core GM-650 $79.99, a 7% premium.
Where the two are identical
Everything else lines up. Fan size, 80 plus rating, form factor, single +12v rail and zero-rpm mode read the same on both, so those are not worth weighing. They match on 3 further specifications as well.
Frequently asked questions
Do the be quiet! Pure Power 12 550W and Seasonic Core GM-650 differ on atx standard?
Yes. ATX Standard reads ATX 3.1 on the be quiet! Pure Power 12 550W versus ATX 2.x on the Seasonic Core GM-650.
Is the PCIe 8-pin Connectors the same on the be quiet! Pure Power 12 550W and Seasonic Core GM-650?
It is. Both are listed at 2, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- be quiet! Pure Power 12 550W
- be quiet!
- Seasonic Core GM-650
- Seasonic
Wattage
- be quiet! Pure Power 12 550W
- 550 W-15%
- Seasonic Core GM-650
- 650 WBest
80 PLUS Rating
- be quiet! Pure Power 12 550W
- Gold
- Seasonic Core GM-650
- Gold
Model Number
- be quiet! Pure Power 12 550W
- Pure Power 12 550W
- Seasonic Core GM-650
- Core GM-650
ATX Standard
- be quiet! Pure Power 12 550W
- ATX 3.1
- Seasonic Core GM-650
- ATX 2.x
Form Factor
- be quiet! Pure Power 12 550W
- ATX
- Seasonic Core GM-650
- ATX
Single +12V Rail
- be quiet! Pure Power 12 550W
- Yes
- Seasonic Core GM-650
- Yes
12V-2x6 Connectors
- be quiet! Pure Power 12 550W
- 1
- Seasonic Core GM-650
- 0
Zero-RPM Mode
- be quiet! Pure Power 12 550W
- No
- Seasonic Core GM-650
- No
Sleeved Cables
- be quiet! Pure Power 12 550W
- Yes
- Seasonic Core GM-650
- No
PCIe 8-pin Connectors
- be quiet! Pure Power 12 550W
- 2
- Seasonic Core GM-650
- 2
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)
- Seasonic Core GM-650
- 1x 24-pin ATX (fixed), 1x EPS 4+4 (fixed), 2x PCIe 6+2-pin, 6x SATA, 3x Molex
Fan Size
- be quiet! Pure Power 12 550W
- 120 mm
- Seasonic Core GM-650
- 120 mm
Fan Model / Bearing
- be quiet! Pure Power 12 550W
- 120mm be quiet! fan, rifle bearing
- Seasonic Core GM-650
- 120mm sleeve bearing with Smart and Silent Fan Control
OEM / Platform
- be quiet! Pure Power 12 550W
- HEC
- Seasonic Core GM-650
- Seasonic in-house
SATA Connectors
- be quiet! Pure Power 12 550W
- 5
- Seasonic Core GM-650
- 6
Molex Connectors
- be quiet! Pure Power 12 550W
- 1
- Seasonic Core GM-650
- 3
Cable Lengths
- be quiet! Pure Power 12 550W
- 24-pin 600mm, max cable length 550mm
- Seasonic Core GM-650
- 24-pin 500mm, EPS 500mm, PCIe 450mm, SATA 500-650mm
Length
- be quiet! Pure Power 12 550W
- 160 mm
- Seasonic Core GM-650
- 140 mm
Colour
- be quiet! Pure Power 12 550W
- Black
- Seasonic Core GM-650
- Black
Fan Bearing
- be quiet! Pure Power 12 550W
- Rifle
- Seasonic Core GM-650
- Sleeve
MTBF
- be quiet! Pure Power 12 550W
- 100000 hours
- Seasonic Core GM-650
- 100000 hours
Modularity
- be quiet! Pure Power 12 550W
- Non-Modular
- Seasonic Core GM-650
- Semi-Modular
Protections
- be quiet! Pure Power 12 550W
- OTP, OCP, OPP, SCP, OVP, UVP, SIP
- Seasonic Core GM-650
- OCP, OVP, OPP, SCP, OTP, UVP
Price
- be quiet! Pure Power 12 550W
- 74.99 USD
- Seasonic Core GM-650
- 79.99 USD
Warranty
- be quiet! Pure Power 12 550W
- 10 yearsBest
- Seasonic Core GM-650
- 7 years-30%
Which one should you pick?
Choose be quiet! Pure Power 12 550W if you want the higher PCIe 8-pin connectors (2 vs 2), the higher MTBF (100000 hours vs 100000 hours) and the higher warranty (10 years vs 7 years).
Choose Seasonic Core GM-650 if you want the higher wattage (650 W vs 550 W).
Price comparison
| Retailer | be quiet! Pure Power 12 550W | Seasonic Core GM-650 |
|---|---|---|
| Amazon | $74.99 View on Amazon | $79.99 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.
Seasonic Core GM-650
7.6 / 10 Expert Rating
The cheapest legitimate route to 80 PLUS Gold in Seasonic's lineup, good for mainstream builds that don't need full modularity.




