{
  "category": {
    "slug": "power-supplies",
    "name": "Power Supplies",
    "description": "PC power supply units (PSUs)."
  },
  "url": "https://stierproducts.com/categories/power-supplies",
  "markdown": "https://stierproducts.com/categories/power-supplies.md",
  "updated": "2026-08-16T03:44:05.819Z",
  "productsRanked": 15,
  "summary": "On the stierproducts power supplies board, be quiet! Dark Power 14 1000W ranks #1 in S tier, ahead of Seasonic Prime TX-1600 Noctua Edition (#2, A tier) and Corsair RM750e (#3, A tier). The board ranks 15 power supplies from S (best) to F (avoid), last researched 16 Aug 2026, drawing on 219 outlet citations across the board. Placed in the bottom tiers as ones to avoid: NZXT C850 SFX Gold, EVGA SuperNOVA 850 G5, Thermaltake Smart 700W, and 2 others.",
  "method": {
    "summary": "Each category is researched in four independent runs, one per lens (expert consensus, value, reliability, community pulse). Every run ranks a board of candidates that deliberately includes products buyers cross-shop but should avoid. Placements score on a ranked ladder (LP), and tiers are derived from LP, so no tier is ever assigned by hand.",
    "url": "https://stierproducts.com/methodology"
  },
  "license": {
    "name": "CC BY 4.0",
    "url": "https://creativecommons.org/licenses/by/4.0/",
    "terms": "https://stierproducts.com/license",
    "covers": [
      "text",
      "rankings",
      "tiers",
      "lp",
      "verdicts",
      "pros",
      "cons"
    ],
    "excludes": [
      "images"
    ],
    "imageRights": "Product photographs are not covered: they belong to their respective owners and are reproduced to illustrate the product being reviewed. Do not redistribute them under this licence."
  },
  "tierMeanings": {
    "S": "Exceptional. Finishes top run after run; capped at 3 slots per category.",
    "A": "Excellent. Strongly recommended, beaten only by the very best.",
    "B": "Good. A solid choice with real caveats worth knowing.",
    "C": "Fair. Acceptable in the right situation, outclassed at its price.",
    "D": "Weak. Hard to recommend when better options cost similar money.",
    "F": "Avoid. The evidence points you elsewhere."
  },
  "products": [
    {
      "rank": 1,
      "tier": "S",
      "lp": 922,
      "name": "be quiet! Dark Power 14 1000W",
      "brand": "be quiet!",
      "slug": "be-quiet-dark-power-14-1000w",
      "url": "https://stierproducts.com/products/be-quiet-dark-power-14-1000w",
      "verdict": "Excellent performance and noise level at a mid-range price.",
      "pros": [
        "High-performance, fully modular",
        "Up to 92 % efficiency",
        "Very low noise",
        "Most efficient, fully modular, 96 % Platinum rating, 3-year warranty",
        "Flagship build quality with a 10-year warranty"
      ],
      "cons": [
        "Priced higher than some alternatives"
      ],
      "citations": 10,
      "distinctOutlets": 10,
      "thinlySourced": false,
      "image": "https://stierproducts.com/images/products/be-quiet-dark-power-14-1000w.webp"
    },
    {
      "rank": 2,
      "tier": "A",
      "lp": 809,
      "name": "Seasonic Prime TX-1600 Noctua Edition",
      "brand": "Seasonic",
      "slug": "seasonic-prime-tx-1600-noctua-edition",
      "url": "https://stierproducts.com/products/seasonic-prime-tx-1600-noctua-edition",
      "verdict": "Unmatched efficiency and silence for the price of a high-end PSU.",
      "pros": [
        "96 % efficiency at full load",
        "Silent operation thanks to the Noctua fan",
        "Robust build quality",
        "Only 1600 W PSU with Platinum rating, 120 mm fan, ultra-quiet",
        "Flagship Titanium platform paired with a Noctua fan"
      ],
      "cons": [
        "High price",
        "Overkill for most builds"
      ],
      "citations": 25,
      "distinctOutlets": 22,
      "thinlySourced": false,
      "image": "https://stierproducts.com/images/products/seasonic-prime-tx-1600-noctua-edition.webp"
    },
    {
      "rank": 3,
      "tier": "A",
      "lp": 733,
      "name": "Corsair RM750e",
      "brand": "Corsair",
      "slug": "corsair-rm750e",
      "url": "https://stierproducts.com/products/corsair-rm750e",
      "verdict": "Reliable, fully modular, and well-balanced for most users.",
      "pros": [
        "80 PLUS Gold rating",
        "Fully modular cables",
        "Excellent thermal performance",
        "Reliable, fully modular, 80 % Gold efficiency, solid warranty",
        "Gold efficiency with ATX 3.x compliance"
      ],
      "cons": [
        "Priced slightly higher than some budget options",
        "Costs a little more than the MSI A-GL budget units"
      ],
      "citations": 24,
      "distinctOutlets": 19,
      "thinlySourced": false,
      "image": "https://stierproducts.com/images/products/corsair-rm750e.webp"
    },
    {
      "rank": 4,
      "tier": "A",
      "lp": 689,
      "name": "be quiet! Pure Power 13 M 850W",
      "brand": "be quiet!",
      "slug": "be-quiet-pure-power-13-m-850w",
      "url": "https://stierproducts.com/products/be-quiet-pure-power-13-m-850w",
      "verdict": "The Pure Power 13 M is a fully-modular, 850 W PSU that delivers 90 % Platinum efficiency and a 3-year warranty.",
      "pros": [
        "Fully modular, 90 % Platinum efficiency, 3-year warranty",
        "Tom's Hardware's number one PSU line of 2026",
        "ATX 3.1 native with a 10-year warranty",
        "Praised for efficiency, acoustics, and value",
        "The mainstream sweet spot for a supply you want to keep for years"
      ],
      "citations": 9,
      "distinctOutlets": 9,
      "thinlySourced": false,
      "image": "https://stierproducts.com/images/products/be-quiet-pure-power-13-m-850w.webp"
    },
    {
      "rank": 5,
      "tier": "B",
      "lp": 618,
      "name": "Corsair RM850e",
      "brand": "Corsair",
      "slug": "corsair-rm850e",
      "url": "https://stierproducts.com/products/corsair-rm850e",
      "verdict": "Corsair’s RM850e is a fully-modular, 850 W PSU that offers 90 % Platinum efficiency and excellent build quality.",
      "pros": [
        "Fully modular, 90 % Platinum efficiency, excellent build quality",
        "ATX 3.x and quiet",
        "Backed by the strongest logistics and warranty service network in the category",
        "Real-world RMA experience with Corsair is consistently smooth",
        "RM line's standing reflected by the RM850x's place among ESGAMING's top picks"
      ],
      "cons": [
        "Shorter 7-year warranty versus 10-year rivals"
      ],
      "citations": 29,
      "distinctOutlets": 23,
      "thinlySourced": false,
      "image": "https://stierproducts.com/images/products/corsair-rm850e.webp"
    },
    {
      "rank": 6,
      "tier": "B",
      "lp": 590,
      "name": "MSI MAG A750GL PCIE5",
      "brand": "MSI",
      "slug": "msi-mag-a750gl-pcie5",
      "url": "https://stierproducts.com/products/msi-mag-a750gl-pcie5",
      "verdict": "PCIe 5.0 readiness gives it a future-proof edge over similar wattages.",
      "pros": [
        "PCIe 5.0 ready",
        "Solid build quality",
        "Competitive pricing",
        "80 Plus Gold efficiency with decent ripple suppression",
        "10-year warranty at a frequently discounted street price"
      ],
      "cons": [
        "Limited fan speed options"
      ],
      "citations": 28,
      "distinctOutlets": 23,
      "thinlySourced": false,
      "image": "https://stierproducts.com/images/products/msi-mag-a750gl-pcie5.webp"
    },
    {
      "rank": 7,
      "tier": "B",
      "lp": 579,
      "name": "Super Flower Leadex V Platinum Pro 1000W",
      "brand": "Super Flower",
      "slug": "super-flower-leadex-v-platinum-pro-1000w",
      "url": "https://stierproducts.com/products/super-flower-leadex-v-platinum-pro-1000w",
      "verdict": "Leadex V Platinum Pro is a 1000 W PSU that offers the highest efficiency (96 % Platinum) and the best price-performance for high-end builds.",
      "pros": [
        "Highest efficiency at 96 % Platinum, best price-performance for 1000 W",
        "Super Flower is the OEM behind several enthusiast favorites",
        "Tests superbly with platinum efficiency",
        "Competitive price"
      ],
      "cons": [
        "Retail presence and warranty service outside Asia are thinner than Seasonic, be quiet!, or Corsair"
      ],
      "citations": 6,
      "distinctOutlets": 6,
      "thinlySourced": false,
      "image": "https://stierproducts.com/images/products/super-flower-leadex-v-platinum-pro-1000w.webp"
    },
    {
      "rank": 8,
      "tier": "B",
      "lp": 533,
      "name": "Seasonic Focus GX-850",
      "brand": "Seasonic",
      "slug": "seasonic-focus-gx-850",
      "url": "https://stierproducts.com/products/seasonic-focus-gx-850",
      "verdict": "Seasonic’s Focus GX-850 is a fully-modular, 850 W PSU that delivers 90 % Gold efficiency and excellent build quality.",
      "pros": [
        "Fully modular, 90 % Gold efficiency, excellent build quality",
        "One of the most proven mainstream platforms of the last several years",
        "10-year warranty",
        "Enormous installed base with a low failure reputation"
      ],
      "citations": 17,
      "distinctOutlets": 15,
      "thinlySourced": false,
      "image": "https://stierproducts.com/images/products/seasonic-focus-gx-850.webp"
    },
    {
      "rank": 9,
      "tier": "B",
      "lp": 519,
      "name": "Corsair SF750",
      "brand": "Corsair",
      "slug": "corsair-sf750",
      "url": "https://stierproducts.com/products/corsair-sf750",
      "verdict": "The SFX benchmark with platinum efficiency and excellent support; small-form-factor buyers have no better long-term bet.",
      "pros": [
        "The reference SFX power supply for years",
        "Platinum efficiency in a small form factor",
        "Corsair's support network is among the best in the business for RMA turnaround"
      ],
      "citations": 31,
      "distinctOutlets": 26,
      "thinlySourced": false,
      "image": "https://stierproducts.com/images/products/corsair-sf750.webp"
    },
    {
      "rank": 10,
      "tier": "C",
      "lp": 492,
      "name": "MSI MAG A850GL PCIE5",
      "brand": "MSI",
      "slug": "msi-mag-a850gl-pcie5",
      "url": "https://stierproducts.com/products/msi-mag-a850gl-pcie5",
      "verdict": "The MSI MAG A850GL is a fully-modular, 850 W PSU that supports PCIe 5.0 and delivers 90 % Gold efficiency.",
      "pros": [
        "PCIe 5.0 support, fully modular, 90 % Gold efficiency",
        "Native 12V-2x6 connector on an ATX 3.1/PCIe 5 platform",
        "Gold efficiency with a 10-year warranty",
        "Price undercuts most rivals",
        "Clean failure record so far"
      ],
      "cons": [
        "Component selection is a step below the flagships"
      ],
      "citations": 25,
      "distinctOutlets": 25,
      "thinlySourced": false,
      "image": "https://stierproducts.com/images/products/msi-mag-a850gl-pcie5.webp"
    },
    {
      "rank": 11,
      "tier": "D",
      "lp": 305,
      "name": "NZXT C850 SFX Gold",
      "brand": "NZXT",
      "slug": "nzxt-c850-sfx-gold",
      "url": "https://stierproducts.com/products/nzxt-c850-sfx-gold",
      "verdict": "Compact form factor is nice, yet it lags in noise and build quality compared to peers.",
      "pros": [
        "Compact 850W unit",
        "80 PLUS Gold efficiency",
        "Good cable management",
        "Compact, fully modular, 90 % Gold efficiency, quiet fan",
        "FSP-built"
      ],
      "cons": [
        "Higher noise than larger units",
        "Build quality less robust",
        "Solid but not exceptional on the bench",
        "The SF750 does everything slightly better in the same niche"
      ],
      "citations": 17,
      "distinctOutlets": 15,
      "thinlySourced": false,
      "image": "https://stierproducts.com/images/products/nzxt-c850-sfx-gold.webp"
    },
    {
      "rank": 12,
      "tier": "F",
      "lp": 62,
      "name": "EVGA SuperNOVA 850 G5",
      "brand": "EVGA",
      "slug": "evga-supernova-850-g5",
      "url": "https://stierproducts.com/products/evga-supernova-850-g5",
      "verdict": "Good all-rounder but slightly behind the Corsair and MSI units in price/performance.",
      "pros": [
        "80 PLUS Gold rating",
        "Solid warranty",
        "Good price point",
        "A competent unit in its day",
        "Carries a once-strong enthusiast reputation"
      ],
      "cons": [
        "Not fully modular",
        "Only 80 % Gold efficiency",
        "Mixed reviews on build quality",
        "An aging platform",
        "EVGA has retreated from much of the enthusiast hardware business, raising real questions about long-term warranty and support over a PSU's decade of service"
      ],
      "citations": 7,
      "distinctOutlets": 5,
      "thinlySourced": false,
      "flaggedToAvoid": {
        "runs": 3,
        "ofRuns": 6
      },
      "image": "https://stierproducts.com/images/products/evga-supernova-850-g5.webp"
    },
    {
      "rank": 13,
      "tier": "F",
      "lp": 9,
      "name": "Thermaltake Smart 700W",
      "brand": "Thermaltake",
      "slug": "thermaltake-smart-700w",
      "url": "https://stierproducts.com/products/thermaltake-smart-700w",
      "verdict": "The Thermaltake Smart 700W is a budget PSU that only offers 80 % Bronze efficiency and has been criticized for noisy operation.",
      "cons": [
        "Only 80 % Bronze efficiency",
        "Noisy operation",
        "Outdated relic topology with entry-level protections",
        "PSU tier lists have placed it in their lowest acceptable or avoid tiers for years",
        "Marketing wattage targets first-time builders who do not know better"
      ],
      "citations": 11,
      "distinctOutlets": 11,
      "thinlySourced": false,
      "flaggedToAvoid": {
        "runs": 3,
        "ofRuns": 6
      },
      "image": "https://stierproducts.com/images/products/thermaltake-smart-700w.webp"
    },
    {
      "rank": 14,
      "tier": "F",
      "lp": 0,
      "name": "Gigabyte GP-P750GM",
      "brand": "Gigabyte",
      "slug": "gigabyte-gp-p750gm",
      "url": "https://stierproducts.com/products/gigabyte-gp-p750gm",
      "verdict": "The Gigabyte GP-P750GM is a non-modular, 750 W PSU that offers only 80 % Bronze efficiency and has been noted for its noisy fan.",
      "pros": [
        "750W capacity fits mainstream builds",
        "Revised stock exists on the market"
      ],
      "cons": [
        "Only 80 % Bronze efficiency",
        "Non-modular",
        "Noisy fan",
        "Center of a documented mass-failure scandal, with units failing catastrophically under load",
        "Contested RMA process"
      ],
      "citations": 10,
      "distinctOutlets": 7,
      "thinlySourced": false,
      "flaggedToAvoid": {
        "runs": 4,
        "ofRuns": 7
      },
      "image": "https://stierproducts.com/images/products/gigabyte-gp-p750gm.webp"
    },
    {
      "rank": 15,
      "tier": "F",
      "lp": 0,
      "name": "Corsair CV650",
      "brand": "Corsair",
      "slug": "corsair-cv650",
      "url": "https://stierproducts.com/products/corsair-cv650",
      "verdict": "Corsair’s CV650 is a very low-cost, non-modular PSU that only delivers 80 % Bronze efficiency and lacks the build quality of higher tiers.",
      "pros": [
        "Low price",
        "Not junk - a functional budget unit"
      ],
      "cons": [
        "Only 80 % Bronze efficiency",
        "Non-modular",
        "Poor build quality",
        "Group-regulated topology",
        "Only a 3-year warranty"
      ],
      "citations": 3,
      "distinctOutlets": 3,
      "thinlySourced": false,
      "flaggedToAvoid": {
        "runs": 4,
        "ofRuns": 6
      },
      "image": "https://stierproducts.com/images/products/corsair-cv650.webp"
    }
  ]
}