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850w Power Supply

A power supply is one of the most important components in a computer, and it's also one of the most overlooked. Choosing the right power supply can be confusing, but if you're building a new system or upgrading an old one, you'll want to make sure you choose a good one. Here are some of our top picks.

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  1. Thermaltake - Toughpower GT 850W 80+ Gold ATX 3.1 Power Supply - Black

    SKU: J39ZPC63FQ

    Great product, love the price and modularity. Packaged nicely.

    Product Description

    A fully modular black ATX 3.1 power supply with 850W output, 80+ Gold efficiency, and quiet hydraulic fan.
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    Your price for this item is $79.99
    Save $30
    The previous price was $109.99

  2. Thermaltake - Toughpower GF A3 850W 80 PLUS Gold PCIe Gen 5 ATX 3.0 Ready Fully Modular Power Supply - Black

    SKU: J39ZPC9RKT

    Good quality product the best part was that Best Buy has inventory available for same day pick up!...Best power supply I have ever owned. It has no problems at all....Best Power Supply

    Product Description

    A fully modular black power supply with 850W output, 80 PLUS Gold efficiency, and PCIe Gen 5.0 support.
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    Your price for this item is $129.99

  3. Thermaltake - Smart BM3 80+ Bronze PCIE Gen 5 ATX 3.0 850W Semi-Modular Power Supply - Black

    SKU: J39ZPC9W4P

    Worked out the best can’t wait to get another one later on...Easy install and I love the modular nature, so there are fewer cables clogging up the guts of my PC....Works great.

    Product Description

    A black semi-modular 850W power supply with 80+ Bronze efficiency and PCIe Gen 5.0 support.
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    Your price for this item is $87.99
    Save $12
    The previous price was $99.99

  4. Thermaltake - GF1 (2024) 850W 80 PLUS Gold Fully Modular Power Supply - Black

    SKU: J39ZPC9ZLF

    Product Description

    A fully modular black power supply delivering 850W of 80 PLUS Gold efficiency with quiet, reliable performance.
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    Your price for this item is $86.99
    Save $23
    The previous price was $109.99

  5. PCCOOLER - P5-YN850-G1FFBK1-US 850W Gold Modular ATX 3.1 Power Supply - Black

    SKU: CZ92Y4Z4ZP

    Product Description

    A fully modular 850W ATX 3.1 power supply in black with 80 Plus Gold efficiency.
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    Your price for this item is $124.90

  6. Super Flower - Zillion FG 850W 80+ Gold Full Modular ATX 3.1 / PCIe 5.0 W/12V-2x6 Cable (2x8pin - 16pin native cables) Power Supply - Black

    SKU: C34528PQ23

    Product Description

    A fully modular black power supply with 80+ Gold efficiency, ATX 3.1, and PCIe 5.0 support.
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    Your price for this item is $89.99

  7. Thermaltake - Toughpower 850W Power Supply

    SKU: J39TQXR68X

    Product Description

    A fully modular ATX 850W power supply with 80 Plus Platinum efficiency and PCIe 5.1 support.
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    Your price for this item is $174.80

  8. REDRAGON - GC-PS010 80 Plus Gold 850W ATX Fully Modular Power Supply - Black

    SKU: CZ6WWRYCZK

    Product Description

    A fully modular ATX power supply with 850W output, 80 Plus Gold efficiency, and sleek black finish.
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    Your price for this item is $125.00

  9. Thermaltake - Toughpower 850W Power Supply (PSTPD0850NNFAGU3)

    SKU: J39ZPC9QLW

    Product Description

    An 80 PLUS Gold certified ATX power supply with PCIe Gen 5.0 support and quiet 120mm cooling fan.
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    Your price for this item is $99.99

  10. Thermaltake - Toughpower GT 750W 80+ Gold ATX 3.1 Power Supply - Black

    SKU: J39ZPC63Z5

    Product Description

    A fully modular black ATX power supply with 750W output, 80+ Gold efficiency, and quiet hydraulic fan.
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    Your price for this item is $99.99
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FAQ

An 850W power supply is compatible with a wide range of components, including high-performance graphics cards, multi-core processors, and multiple storage devices. It's ideal for gaming PCs, workstations, and systems with multiple GPUs.

Many 850W power supplies feature modular or semi-modular cable management, allowing you to use only the cables you need for a cleaner and more organized build.

Yes, an 850W power supply provides ample headroom for overclocking your CPU and GPU, ensuring stable power delivery during high-performance tasks.

Look for 80 PLUS certifications such as Bronze, Gold, or Platinum, which indicate energy efficiency and reliable performance for your 850W power supply.

Yes, an 850W power supply is generally suitable for most dual GPU setups, especially when paired with efficient components and proper cooling.