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be quiet! Pure Power 12 550W vs MSI MPG A850G PCIE5: Comparison
be quiet! Pure Power 12 550W vs MSI MPG A850G PCIE5: the wattage difference
Wattage is where these two genuinely part company, be quiet! Pure Power 12 550W 550 W against MSI MPG A850G PCIE5 850 W, a 35% lead for MSI MPG A850G PCIE5. Pcie 8-pin connectors runs the same way, 2 on the be quiet! Pure Power 12 550W versus 6 on the MSI MPG A850G PCIE5, another win for MSI MPG A850G PCIE5.
Which should you buy, be quiet! Pure Power 12 550W or MSI MPG A850G PCIE5?
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 the wrong buy for anyone wanting fully modular cables and high-end or multi-GPU builds. Buy the MSI MPG A850G PCIE5 for anyone who wants fully modular cabling with native 12V-2x6 support and systems where a 10-year warranty and Gold-tier efficiency matter, though it is not the pick for builds needing more than 850W of continuous headroom and buyers who need the smallest possible SFX/SFX-L footprint. The same goes for builders targeting a popular RTX 4070 Ti / RTX 5070-class gaming build.
be quiet! Pure Power 12 550W vs MSI MPG A850G PCIE5 price
Cost splits them too. be quiet! Pure Power 12 550W sits at $74.99, MSI MPG A850G PCIE5 at $140, 87% more.
What be quiet! Pure Power 12 550W and MSI MPG A850G PCIE5 have in common
Everything else lines up. Warranty, 80 plus rating, form factor, single +12v rail and 12v-2x6 connectors read the same on both, so those are not worth weighing. They match on 2 further specifications as well.
Frequently asked questions
Do the be quiet! Pure Power 12 550W and MSI MPG A850G PCIE5 differ on modularity?
Yes. Modularity reads Non-Modular on the be quiet! Pure Power 12 550W versus Fully Modular on the MSI MPG A850G PCIE5.
Is the Colour the same on the be quiet! Pure Power 12 550W and MSI MPG A850G PCIE5?
It is. Both are listed at Black, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- be quiet! Pure Power 12 550W
- be quiet!
- MSI MPG A850G PCIE5
- MSI
Wattage
- be quiet! Pure Power 12 550W
- 550 W-35%
- MSI MPG A850G PCIE5
- 850 WBest
80 PLUS Rating
- be quiet! Pure Power 12 550W
- Gold
- MSI MPG A850G PCIE5
- Gold
Model Number
- be quiet! Pure Power 12 550W
- Pure Power 12 550W
- MSI MPG A850G PCIE5
- MPG A850G PCIE5
ATX Standard
- be quiet! Pure Power 12 550W
- ATX 3.1
- MSI MPG A850G PCIE5
- ATX 3.0
Form Factor
- be quiet! Pure Power 12 550W
- ATX
- MSI MPG A850G PCIE5
- ATX
+12V Rail Amperage
- be quiet! Pure Power 12 550W
- 45.8 A
- MSI MPG A850G PCIE5
- 70.8 A
Single +12V Rail
- be quiet! Pure Power 12 550W
- Yes
- MSI MPG A850G PCIE5
- Yes
12V-2x6 Connectors
- be quiet! Pure Power 12 550W
- 1
- MSI MPG A850G PCIE5
- 1
Zero-RPM Mode
- be quiet! Pure Power 12 550W
- No
- MSI MPG A850G PCIE5
- Yes
Sleeved Cables
- be quiet! Pure Power 12 550W
- Yes
- MSI MPG A850G PCIE5
- No
PCIe 8-pin Connectors
- be quiet! Pure Power 12 550W
- 2-67%
- MSI MPG A850G PCIE5
- 6
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)
- MSI MPG A850G PCIE5
- 1x 24-pin ATX, 2x EPS 4+4, 1x 12V-2x6 (600W), 6x PCIe 6+2-pin, 8x SATA, 4x Molex, 1x FDD adapter
Fan Size
- be quiet! Pure Power 12 550W
- 120 mm
- MSI MPG A850G PCIE5
- 135 mm
Fan Model / Bearing
- be quiet! Pure Power 12 550W
- 120mm be quiet! fan, rifle bearing
- MSI MPG A850G PCIE5
- 135mm fluid dynamic bearing
OEM / Platform
- be quiet! Pure Power 12 550W
- HEC
- MSI MPG A850G PCIE5
- CWT
EPS 8-pin Connectors
- be quiet! Pure Power 12 550W
- 1
- MSI MPG A850G PCIE5
- 2
SATA Connectors
- be quiet! Pure Power 12 550W
- 5
- MSI MPG A850G PCIE5
- 8
Molex Connectors
- be quiet! Pure Power 12 550W
- 1
- MSI MPG A850G PCIE5
- 4
Cable Lengths
- be quiet! Pure Power 12 550W
- 24-pin 600mm, max cable length 550mm
- MSI MPG A850G PCIE5
- ATX 600mm, EPS 650mm, PCIe 600-750mm, SATA 500-900mm
Length
- be quiet! Pure Power 12 550W
- 160 mm
- MSI MPG A850G PCIE5
- 150 mm
Colour
- be quiet! Pure Power 12 550W
- Black
- MSI MPG A850G PCIE5
- Black
MTBF
- be quiet! Pure Power 12 550W
- 100000 hours
- MSI MPG A850G PCIE5
- 100000 hours
Modularity
- be quiet! Pure Power 12 550W
- Non-Modular
- MSI MPG A850G PCIE5
- Fully Modular
Protections
- be quiet! Pure Power 12 550W
- OTP, OCP, OPP, SCP, OVP, UVP, SIP
- MSI MPG A850G PCIE5
- OCP, OVP, OPP, SCP, OTP, UVP
Price
- be quiet! Pure Power 12 550W
- 74.99 USD
- MSI MPG A850G PCIE5
- 139.99 USD
Warranty
- be quiet! Pure Power 12 550W
- 10 years
- MSI MPG A850G PCIE5
- 10 years
Which one should you pick?
Choose be quiet! Pure Power 12 550W if you want the higher 12V-2x6 connectors (1 vs 1), the higher MTBF (100000 hours vs 100000 hours) and the higher warranty (10 years vs 10 years).
Choose MSI MPG A850G PCIE5 if you want the higher wattage (850 W vs 550 W) and the higher PCIe 8-pin connectors (6 vs 2).
Price comparison
| Retailer | be quiet! Pure Power 12 550W | MSI MPG A850G PCIE5 |
|---|---|---|
| Amazon | $74.99 View on Amazon | $139.99 View on Amazon |
| Newegg | View on Newegg |
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.
MSI MPG A850G PCIE5
8.3 / 10 Expert Rating
A solid 850W Gold-rated ATX unit for a popular RTX 4070 Ti / RTX 5070-class gaming build, held back only by the usual mid-tier compromises on cabling and OEM sourcing.