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Gigabyte Compatible P450B Netzteil, 80 Plus Bronze - 450 Watt

Gigabyte Compatible P450B Netzteil, 80 Plus Bronze - 450 Watt

Bottom line: The Gigabyte Compatible P450B Netzteil: 450 W output suits office PCs and entry-level gaming builds; main trade-off: 450 W leaves little headroom for mid-range or high-end GPUs.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

Pros & Cons

Pros

  • ✓ 450 W output suits office PCs and entry-level gaming builds
  • ✓ 80 Plus Bronze certified for better efficiency than uncertified PSUs
  • ✓ Gigabyte P450B model is easy to look up for full spec sheets
  • ✓ Ships as a single unit in a compact 12 x 21 x 26 cm package
  • ✓ Fine as a drop-in replacement for an aging low-power desktop PSU

Cons

  • ✗ 450 W leaves little headroom for mid-range or high-end GPUs
  • ✗ Bronze efficiency trails 80 Plus Gold units under sustained load
  • ✗ Listing omits connector counts, so verify PCIe and SATA cables
  • ✗ German-market listing; confirm the plug and cord suit your region

Manufacturer description

The Gigabyte P450B is a 450 W power supply with 80 Plus Bronze certification, sized for budget desktops, office PCs and entry-level gaming builds that don't need a high-wattage unit. If your system has a modest CPU and an integrated GPU or a low-power graphics card, 450 W is a sensible ceiling, and the Bronze rating means less energy is lost as heat than with an uncertified PSU. This listing is for a German-market (Netzteil) unit, and it ships in a package measuring 12 x 21 x 26 cm and weighing 2.02 kg. It is a single unit made in China. The listing does not give connector counts, cable…

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SpecPicks Verdict

SpecPicks scored Gigabyte Compatible P450B Netzteil using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. Compare with similarly-priced alternatives in the power supplies category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

How many watts does the Gigabyte P450B provide?

The Gigabyte P450B is rated at 450 watts and carries 80 Plus Bronze efficiency certification.

Is 450 W enough for a gaming PC?

450 W is suited to builds with integrated graphics or a low-power graphics card. If you plan to run a mid-range or high-end GPU, check the card maker's recommended PSU wattage. It often exceeds 450 W.

Does the Gigabyte P450B have the PCIe connectors my graphics card needs?

The listing doesn't state connector counts or types. Check Gigabyte's official P450B spec sheet to confirm its PCIe, SATA and CPU power connectors before you buy.

How big and heavy is the package?

The package measures 12 x 21 x 26 cm and weighs 2.02 kg. It contains one unit.

What warranty comes with the Gigabyte P450B?

The listing doesn't specify warranty terms. Check the product listing or Gigabyte's support site for current warranty coverage in your region.

Key Features

  • Country of origin:- China
  • Item Package Quantity: 1
  • Package Weight: 2.02 kilograms
  • Item Package Dimensions (L x B x H) in cm: 12 x 21 x 26

Full Specifications

BrandGIGABYTE
Wattage450 watts
Fan Size12 centimeters
Model NameSD157
Unit Count1 count
Form FactorATX
Model NumberGP-P450B
Connector TypeATX
Cooling MethodAir
Number of Fans1
Output Wattage450
Package Weight2.02 kilograms
Item Dimensions5.91 x 5.51 x 3.39 inches
Mfr Part NumberGP-P450B
Country of origin- China
Compatible DevicesPersonal Computer
Power Supply DesignFull Modular
Item Package Quantity1
Maximum Input Voltage240 volts_of_alternating_current
Minimum Input Voltage100 volts

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Gigabyte Compatible P450B Netzteil, 80 Plus Bronze - 450 Watt is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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Gigabyte Compatible P450B Netzteil, 80 Plus Bronze - 450 Watt
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