Power supplies / Compare

ASUS TUF Gaming 850W Gold EVO vs Montech Century II 850W

A

Product A: ASUS

TUF Gaming 850W Gold EVO

49 of 66 known

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B

Product B: Montech

Century II 850W

54 of 66 known

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Only differences

AASUS TUF Gaming 850W Gold EVO

BMontech Century II 850W

General

5 of 12 differ

Series

TUF Gaming Gold EVO1Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evoRead 15 October 2026Page title TUF Gaming 850W Gold EVO. The page names the line TUF Gaming Gold EVO Series.

Century II1Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

TUF-GAMING-850G-EVO, TUF-GAMING-850G-EVO-WHITE1Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evoRead 15 October 2026Tech Specs and breadcrumb: TUF-GAMING-850G-EVO. A separate White Edition page lists TUF-GAMING-850G-EVO-WHITE.2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 2026Model TUF-GAMING-850G-EVO.4Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo-white/techspecRead 15 October 2026Model TUF-GAMING-850G-EVO-WHITE.

Century II 850W1Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026Specifications tab: Model Name Century II 850W. The maker prints no part number.

GTIN / EAN

Not available

47105627472631Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026Specifications tab: EAN 4710562747263.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

Not available

15 April 20252Press releasemontechpc.com/news-century-iiRead 14 October 2026Launch article dated 2025-04-15. The unit is available from that day (see the Funkykit launch report).

Status

Available1Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evoRead 15 October 2026The product page is live in the current TUF Gaming catalog and a Hardware Busters review and retailers cover the unit.6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026The review was published on March 1, 2026 and the unit has a retail price.

Available8Retailer pagemaxmybuild.com/power-supplies/montech-century-ii-850wRead 14 October 2026Listing shows $89.90 at Amazon and Newegg, updated 14 Oct 2026. Scan UK lists only an open-box unit and calls the model end of life. Tom's Hardware, in its review of 7 September 2026, lists it at Amazon, Newegg and Best Buy.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$1346Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026Technical Specifications row MSRP (excluding VAT): $134. The region is not stated. The epilogue calls $134 the current price.

$89.92Press releasemontechpc.com/news-century-iiRead 14 October 2026Article: Starting at just $89.9. Funkykit lists the 850W model at US$ 89.9, the lowest of the three launch models. US price, no sales tax.3Press articlefunkykit.com/news/montech-introduces-century-ii-power-supplyRead 14 October 2026Century II 850 W: US$ 89.9. The 1050 W is US$ 109.9 and the 1200 W is US$ 129.9.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

Not available

ColoursiThe maker's own colour names

Black, White4Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo-white/techspecRead 15 October 2026White Edition. The Tech Specs table is the same as the black unit in every row.6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026The review covers the black unit.

Metallic Silver1Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026Overview text: a sleek metallic silver finish. The maker names no other colour for this wattage.

Form factoriThe physical size standard that decides what fits in the case. An ATX unit is 150 × 86 mm at the back. An SFX unit is 125 × 63.5 mm.

ATX2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 2026Intel Form Factor ATX12V. Dimensions 140 x 150 x 86 mm, so the back face is 150 x 86 mm, the standard ATX size.

ATX1Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026Specifications tab: Form Factor ATX (140).5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026DUT Information: Type ATX12V. The maker lists form factor ATX (140).

ATX versioniThe ATX12V design guide revision the maker claims compliance with. A 16-pin GPU cable alone does not establish ATX 3.x. A Cybenetics report that withholds its ATX badge does not change the maker's claim. It goes in the source note.

ATX 3.11Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evoRead 15 October 2026Overview: meets the stringent requirements of the ATX 3.1 standard and supports PCIe 5.1 graphics cards. Tech Specs: ATX Standard ATX 3.1.2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 2026ATX Standard ATX 3.1.

ATX 3.11Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026Overview: ATX 3.1 and PCIe 5.1 platform support. The 80 PLUS certificate type line reads ATX 3.0, ATX 3.1.

PCIe CEM versioniThe PCI Express card power revision the maker claims, as printed next to the ATX version. It sets the GPU power connector rules. It is not a slot speed. A reviewer's statement is not enough.

PCIe 5.11Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evoRead 15 October 2026Overview: ATX 3.1 & PCIe 5.1 Compatible, native PCIe 5.1 12V-2x6 connector.

PCIe 5.11Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026Overview: ATX 3.1 and PCIe 5.1 platform support.

Modular cablesiFull means every cable detaches. Semi means some cables are fixed, usually the 24-pin and CPU cables.

Fully modular6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications: Modular Design Yes (Fully). The modular panel has six sockets including a native 12V-2x6 header.

Fully modular1Maker product pagemontechpc.com/century-ii-850wRead 14 October 20265Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026DUT Information: Cable Design Fully Modular.

Built by (OEM)iThe company that designed and built the unit for the brand, such as CWT or FSP. As named by the maker, a teardown review or a Cybenetics report.

Great Wall6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications and Part Analysis: Manufacturer (OEM) Great Wall.

Shenzhen Xinweiye Technology (XWY)5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026DUT Information: OEM/ODM Shenzhen Xinweiye Technology Co., Ltd. Tom's Hardware calls the company XWY.7Reviewtomshardware.com/pc-components/power-supplies/montech-century-ii-gold-850w-atx-3-1-power-supply-reviewRead 14 October 2026Internal Design: the OEM is Shenzhen Xinweiye Technology Co., typically referred to as XWY.

Power

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Rated continuous poweriThe continuous DC output the maker rates the unit for, such as 850. Peak or power excursion figures are not stored here.

850W2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 2026Total Output 850W.

850W1Maker product pagemontechpc.com/century-ii-850wRead 14 October 20265Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026Manufacturer-provided information: Rated Power 850 W.

Full power rated up toiThe ambient temperature up to which the maker rates full continuous power, such as 50 °C. A review table that prints 0-50 °C with no maker source is not enough. An operating temperature range that does not say full power is not enough. A maker table with load steps gives the full-load row, such as 40 °C at full load next to 50 °C at 80 percent load. A temperature that a Cybenetics report marks as manufacturer-provided counts as a maker statement.

40°C6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications: Operating Temperature (Continuous Full Load) 0 - 40 C. This label matches the Cybenetics manufacturer-provided field. ASUS does not publish the figure. The Cybenetics report page itself returned No Access.

40°C1Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026Specifications tab: Operating Temperature 0-40 C. Tom's Hardware prints the power table as Rated @ 40 C. The Cybenetics report leaves its continuous full load temperature row empty.7Reviewtomshardware.com/pc-components/power-supplies/montech-century-ii-gold-850w-atx-3-1-power-supply-reviewRead 14 October 2026Power specifications table titled Rated @ 40 C. Same figure as the maker's operating temperature.

12V rail designiHow the maker splits +12V over-current protection. Switchable means the user picks single or multi rail with a switch or in software.

Single rail2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 2026The table has one +12V column with 70.83A and 850W.6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications: Number of 12V rails 1.

Single rail5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026Power Specifications: one +12V column with 70.8A and 849.6W, and one OCP result for 12V.

+12V max currentiHighest combined current on +12V from the maker's power table. For a multi-rail unit this is the combined total, not one rail.

70.83A2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 2026Maximum Load: +12V 70.83A.

70.8A1Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026DC Output table: +12V 70.8A, 849.6W.5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026

+12V max poweriHighest combined power on +12V from the maker's power table.

850W2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 2026Combined Load: +12V 850W, total output 850W.

849.6W1Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026DC Output table: +12V 70.8A, 849.6W.5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026

+3.3V and +5V combined poweriThe combined limit for the +3.3V and +5V rails from the maker's power table. A table that prints the same figure under both rails, as be quiet! does, shows one shared limit, so the figure is stored once and not added.

110W2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 2026Combined Load prints 110W under both +3.3V and +5V. That is one shared limit, so it is stored once. Hardware Busters prints Power 5V + 3.3V 110W.6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications: Power 5V + 3.3V 110W.

100W1Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026DC Output table prints +3.3V 20A 100W and +5V 20A 100W. The Cybenetics power table has one merged 100W cell for 3.3V and 5V, so 100W is the combined limit.5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026

+5V standby currentiHighest current on the +5VSB standby rail. It powers USB charging and wake functions while the PC is off.

3A2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 2026Maximum Load: +5Vsb 3A, 15W.

3A1Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026DC Output table: +5VSB 3A, 15W.5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026

AC input voltageiThe rated AC input range, such as 100 to 240 V.

Lowest100Highest240V2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 2026AC Input Range 100-240Vac.

Lowest100Highest240V1Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026AC Input 100-240 VAC, 50-60 Hz, 10 A max.5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026Manufacturer-provided information: 100-240 Vrms, 10 A, 50-60 Hz.

Alternative low power mode (ALPM)iThe maker or a Cybenetics report states support for the ATX alternative low power mode used by Modern Standby.

Yes6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications: Alternative Low Power Mode support ticked. The PSU Timings page says the PSU supports Alternative Low Power Modes.

Yes5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026Temperature and Compliance Info: ALPM compatible, checked.

Certifications

3 of 5 differ

80 PLUS ratingiThe 80 PLUS level. When the 80 PLUS listing or certificate and the maker claim differ, store the listing level and put the claim and test voltage in the source note. When a model has several 80 PLUS entries, such as a newer test at a higher level, use the newest entry that matches the current maker documents.

80 PLUS Gold1Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evoRead 15 October 2026Overview: 80 PLUS Gold. The 80 PLUS list entry confirms Gold.2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 202680 PLUS Efficiency 80Plus Gold.5Certification listclearesult.com/80plus/sites/80plus/files/manufacturer_json/manufacturer_details.jsonRead 15 October 202680 PLUS list entry ID 8045, model TUF-GAMING-850G-EVO, 850W, 115V Internal, Gold, certified 12/02/2025. Efficiency 86.77% at 10%, 90.19% at 20%, 91.46% at 50% and 88.15% at 100% load.

80 PLUS Gold6Certification listclearesult.com/80plus/sites/80plus/files/manufacturer-certificate/MONTECH_CENTURY%20II%20850W_850W_SOCE%207850_Report.pdfRead 14 October 202680 PLUS ID 7850, model CENTURY II 850W: Gold at 115V, test date 2025-06-04. The certificate lists no sample serial. The maker's own product page says Platinum, which is the Cybenetics level.

Cybenetics efficiency at 115ViThe Cybenetics ETA level from the 115V test. The Cybenetics report wins over the maker's claim.

Cybenetics Gold1Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evoRead 15 October 2026Overview and Tech Specs: Cybenetics Efficiency Platinum (230V), Gold (115V).2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 2026Cybenetics Efficiency Platinum (230V) and Gold (115V).6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications: Cybenetics Efficiency [115V] Cybenetics Gold (88.776%), [230V] Cybenetics Platinum (91.359%). The data are the Cybenetics test results of the sample that Hardware Busters received.

Cybenetics Platinum5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026Report 25PS2813A, certification ID 252813, issued May 13, 2025. The database name is Montech Century II Gold 850 ATX3. The badge is ETA Platinum at 115V.

Cybenetics efficiency at 230ViThe Cybenetics ETA level from the 230V test. The 230V thresholds are higher, so the level can differ from the 115V level. The Cybenetics report wins over the maker's claim.

Cybenetics Platinum1Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evoRead 15 October 2026Overview and Tech Specs: Cybenetics Efficiency Platinum (230V), Gold (115V).2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 2026Cybenetics Efficiency Platinum (230V) and Gold (115V).6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications: [230V] Cybenetics Platinum (91.359%).

Cybenetics Platinum5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026ETA Platinum at 230V.

Cybenetics noise at 115ViThe Cybenetics LAMBDA level from the 115V test. A++ is the quietest. The Cybenetics report wins over the maker's claim.

Not available

A-5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026LAMBDA A- at 115V.

Cybenetics noise at 230ViThe Cybenetics LAMBDA level from the 230V test. The Cybenetics report wins over the maker's claim.

Not available

A-5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026LAMBDA A- at 230V.

Measured

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Average efficiency at 115V (measured)iAverage efficiency over the whole load range at 115V input, from more than 1450 load combinations in the Cybenetics method. It is not the peak efficiency or the efficiency at 50% load.

88.776%6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications: 88.776% at 115V. Average over more than 1450 load combinations. The Cybenetics report page for this unit returned No Access, so the Hardware Busters copy is used. The review says the units under test did not have the final fan speed profile, which does not change efficiency noticeably.

89.8%5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026Average over more than 1450 load combinations at 115V. Tested May 10, 2025, ambient 28-32 C. The report lists no sample serial.

Average efficiency at 230V (measured)iThe same average efficiency at 230V input.

91.359%6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications: 91.359% at 230V.

91.84%5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026Average over more than 1450 load combinations at 230V.

Light-load efficiency at 115V (measured)iEfficiency at a 10 W load for units up to 500 W, or at a 2% load for larger units, at 115V input. This is the ATX light-load test.

67.95%6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026Efficiency chart for 2% load at 115V: 67.95%.

70.357%5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026Efficiency at 2% load (more than 500 W unit) at 115V.

Average power factor at 115V (measured)iAverage power factor over the whole load range at 115V input. 1 is the best possible value.

0.9856Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026Average PF chart at 115V: 0.985.

0.9855Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026Average over more than 1450 load combinations at 115V. At 230V it is 0.945.

Average noise at 115V (measured)iAverage noise over the whole load range at 115V input in the Cybenetics method, at about 30 °C ambient. It is not the noise at full load.

Not available

26.89dB(A)5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026Average over more than 1450 load combinations at 115V, ambient 28-32 C, Bruel and Kjaer 2270 G4 sound analyzer. The 230V average is 26.26 dBA.

Noise at full load at 115V (measured)iNoise at 100% load at 115V input in the Cybenetics typical load tests. That row often runs at about 45 °C intake. The intake temperature and the fan speed go in the source note. Lower is better.

Not available

42.1dB(A)5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026Typical load tests at 115V, 100% load row: 42.1 dB(A) at 1698 rpm fan speed, ambient about 30 C.

Standby power with no load at 115V (measured)iPower the unit draws from the wall with the PC off and nothing drawn from +5VSB, at 115V input.

0.06W6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026Standby power consumption chart at 115V: 0.06 W. The chart shows two decimals.

0.073W5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026Standby power consumption at 115V with no load on +5VSB: 0.0730 W. At 230V it is 0.1474 W.

Hold-up time (measured)iHow long the outputs stay in regulation after AC power is lost, at maximum continuous load, as printed in the Cybenetics report. The report names no input voltage. The AC loss to PWR_OK time goes in the source note. Higher is better.

18.4ms6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026PSU Timing chart: hold-up time 18.4 ms. The input voltage is not stated.

22.4ms5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026Hold-Up Time and PWR_OK Signal: hold-up time 22.4 ms, AC loss to PWR_OK 14.3 ms, at maximum continuous load.

12V ripple at full load (measured)iPeak-to-peak ripple on the +12V rail at full load and 115V input. Lower is better.

30.79mV6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026+12V ripple (full load) chart at 115V: 30.79 mV.

28.25mV5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026Non-accredited. 12V ripple at full load at 115V. At 230V it is 29.21 mV.

12V load regulation (measured)iHow far the +12V voltage moves between light and full load at 115V input. Lower is better.

1.54%6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026Load Regulation +12V chart at 115V: 1.54% deviation.

0.39%5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026Non-accredited. 12V load regulation at 115V. At 230V it is 0.27%.

Cables and connectors

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CablesiOne row per kind of cable that runs from the PSU to a device. Connector is the plug at the device end. Count is the number of those plugs over all cables in the row. Length runs from the PSU end to the first plug. Adapters that plug into other cables are left out. Use 16-pin PCIe when the maker names a 16-pin GPU cable without saying 12V-2x6 or 12VHPWR. A cable from a 12V-2x6 socket on the PSU to 8-pin plugs is a cable, not an adapter, and counts as PCIe 8-pin. When the maker's documents name one GPU cable both 12VHPWR and 12V-2x6, use 16-pin PCIe and name both in the source note. Cables of one connector kind with different lengths or wire gauges get one row each.

AASUS TUF Gaming 850W Gold EVO

Connector	Connectors	Cables	Length to first plug (mm)	Wire gauge	Rated power (W)
ATX 24-pin (20+4)	1	1	500	18AWG	Not available
CPU 8-pin (EPS, 4+4)	2	1	650	18AWG	Not available
PCIe 8-pin (6+2)	3	2	500	18AWG	Not available
12V-2x6	1	1	500	16AWG	600
SATA power	4	2	400	18AWG	Not available
4-pin Molex	2	2	400	18AWG	Not available

Source2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 2026Cable Connectors: MB 20+4pin x1, CPU 4+4pin x2, PCI-E 16pin x1 (12V-2x6), PCI-E 6+2pin x3, SATA x4 and Peripheral x2. Package Contents: CPU 1-to-2 cable (650mm+100mm), PCI-E Gen 5.1 cable 16-pin-to-16-pin (500mm), PCI-E 1-to-1 cable 8-pin-to-6+2pin (500mm), PCI-E 1-to-2 cable 16-pin-to-6+2pin*2 (500mm+100mm) and 2 SATA & Peripheral 1-to-2+1 cables (400mm+120mm+120mm). The 16-pin-to-2x 6+2 pin cable is stored as PCIe 8-pin plugs, as it plugs into the native 12V-2x6 socket of the PSU, which it shares with the 16-pin cable. The motherboard cable is 610mm here and 500mm in the cable list PDF and in the Hardware Busters and Cybenetics tables, so 500 mm is stored. The 600W rating and the gauges come from Hardware Busters.3Maker spec sheet (PDF)dlcdnets.asus.com/pub/ASUS/Accessory/Power_Supply/Cables/TUF-GAMING-850G-EVO_Cables.pdfRead 15 October 2026Cable list PDF for TUF Gaming 850W Gold EVO: motherboard power cable x1 (500mm), CPU cable 1-to-2 x1 (650mm+100mm), PCI-E Gen 5.1 cable x1 (500mm), PCI-E 1-to-1 cable x1 (500mm), PCI-E 1-to-2 cable x1 (500mm+100mm) and SATA & Peripheral 1-to-2+1 cable x2 (400mm+120mm+120mm). Each SATA and Peripheral cable has 2 SATA plugs and 1 peripheral plug, with the first plug at 400 mm.6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026Modular Cables table: ATX 20+4 pin (500mm) 18AWG, 4+4 pin EPS12V (650mm+100mm) 1 cable with 2 plugs 18AWG, 6+2 pin PCIe (500mm) 1 plug 18AWG, 2x 6+2 pin PCIe (500mm) 2 plugs 18AWG, 12+4 pin PCIe (500mm) (600W) 16-24AWG and SATA (400mm+115mm) / 4-pin Molex (+115mm) 2 cables with 4 SATA and 2 Molex plugs 18AWG, no in-cable capacitors. Hardware Busters counts the 2x 6+2 pin cable as 2 cables, while ASUS counts one cable with two plugs, so the maker count is stored. The 16-24AWG range of the 12+4 pin cable includes the sideband wires, so the 16AWG power wire gauge is stored.

BMontech Century II 850W

Connector	Connectors	Cables	Length to first plug (mm)	Wire gauge	Rated power (W)
ATX 24-pin (20+4)	1	1	590	18AWG	Not available
CPU 8-pin (EPS, 4+4)	2	2	700	18AWG	Not available
PCIe 8-pin (6+2)	4	2	600	18AWG	Not available
12V-2x6	1	1	600	16AWG	600
SATA power	8	2	500	18AWG	Not available
4-pin Molex	4	1	500	18AWG	Not available

Source1Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026Cables table: 1 motherboard cable with a 20+4 pin plug, 2 CPU cables with one 4+4 pin plug, 2 PCIe cables with two 6+2 pin plugs, 1 12V-2x6 cable, 2 SATA cables with 4 plugs and 1 Molex cable with 4 plugs. Lengths and gauge come from the Cybenetics report.5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026Cables and Connectors table: ATX 20+4 pin 590 mm 18AWG, 2 x 4+4 pin EPS 700 mm 18AWG, 2 x 6+2 pin PCIe cables 600 mm then 150 mm with 4 plugs in total 18AWG, 12+4 pin PCIe 600 mm (600W) 16-26AWG, 2 SATA cables of 500 mm plus 3 x 150 mm spacing with 8 plugs in total 18AWG, 1 Molex cable 500 mm plus 3 x 150 mm with 4 plugs 18AWG. The 16-26AWG range of the 12V-2x6 cable includes the thin sideband wires, so the stored gauge is the 16AWG power wire.

CPU (EPS) connectorsi8-pin or 4+4-pin CPU power plugs.

2=CalculatedFrom Cables

2=CalculatedFrom Cables

PCIe 8-pin connectorsi8-pin or 6+2-pin GPU power plugs. Counts the plugs in the box. Some cables share one PSU socket, which the source note says.

3=CalculatedFrom Cables

4=CalculatedFrom Cables

16-pin GPU connectorsiNative 16-pin GPU power plugs: 12V-2x6, 12VHPWR and 16-pin cables of unstated revision. Adapters are not counted. Counts the plugs in the box. Some cables share one PSU socket, which the source note says.

1=CalculatedFrom Cables

1=CalculatedFrom Cables

SATA power connectors

4=CalculatedFrom Cables

8=CalculatedFrom Cables

4-pin Molex connectors

2=CalculatedFrom Cables

4=CalculatedFrom Cables

Cable styleiHow the modular cables are made. Mixed means some cables are sleeved and others flat, such as a sleeved 24-pin cable with flat other cables. From the maker page or a review photo page.

Embossed or debossed flat1Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evoRead 15 October 2026Premium Embossed Cables: embossed cable jacket.

Flat1Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026Overview: Flat cables and fully modular design.7Reviewtomshardware.com/pc-components/power-supplies/montech-century-ii-gold-850w-atx-3-1-power-supply-reviewRead 14 October 2026The cable bundle is all-black and entirely flat-ribbon in construction.

Fan

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Fan sizeiFrame size of the cooling fan, such as 120, 135 or 140.

135mm1Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evoRead 15 October 2026Dual-Ball Fan Bearings: a 135mm fan.

135mm1Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026Specifications tab: Fan Size 135 mm.5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026DUT Information: 135mm Fluid Dynamic Bearing Fan.

Fan bearingiUse the maker's bearing name. FDB and S-FDB are fluid dynamic. HDB is hydrodynamic. Noctua SSO and SSO2 are SSO. Corsair Magnetic Dome is magnetic dome. A brand bearing name that fits no option is Other.

Dual ball1Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evoRead 15 October 2026Dual-Ball Fan Bearings: a 135mm fan spinning on a dual-ball bearing setup.

Fluid dynamic (FDB)1Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026Specifications tab: Fan Bearing FDB.5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026DUT Information: 135mm Fluid Dynamic Bearing Fan (HA13525M12SF-Z).

Fan modeiSemi-passive means the fan stops at low load, often sold as zero RPM, hybrid or 0 dB mode. Fanless means the unit has no fan.

Always on2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 20260dB Fan Button row: No, this product is without 0dB technology. The fan always spins.6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications: Semi-Passive Operation not present. The review says there is no passive fan operation.

Semi-passive1Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026Overview: 135 mm FDB fan with Smart Zero Fan mode.5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026DUT Information: Semi-Passive Operation checked (selectable).

Fan mode switchiA button, switch or software setting lets the user turn the semi-passive mode off so the fan always spins. A unit without a semi-passive mode, whose fan the maker says always spins, has no switch, so it is false.

No2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 20260dB Fan Button row: No. The unit has no semi-passive mode to switch off.

Yes5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026DUT Information: Semi-Passive Operation marked selectable.7Reviewtomshardware.com/pc-components/power-supplies/montech-century-ii-gold-850w-atx-3-1-power-supply-reviewRead 14 October 2026External Appearance: a smaller secondary toggle on the rear lets the user disable the hybrid mode and run the fan continuously.

Protection and parts

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ProtectionsiProtections the maker lists, or a retailer spec table copies from the maker, plus protections the Cybenetics protection tests show working (UVP, NLO, SIP). The Cybenetics manufacturer list has no OVP or UVP row, so do not build the list from it alone. A protection that is not listed may still exist. No-load covers no-load operation and no-load protection. Fan failure is a maker's fan failure protection or fan safeguard, also when the Cybenetics manufacturer block lists it.

Over-current (OCP), Over-voltage (OVP), Under-voltage (UVP), Over-power (OPP), Over-temperature (OTP), Short-circuit (SCP), No-load (NLO), Surge and inrush (SIP)1Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evoRead 15 October 2026Protection section: over-current, over-temperature, over-voltage, over-power, short circuit, under-voltage, surge and inrush protection and no-load operation. Surge and inrush is stored as SIP and no-load operation as NLO. Fan failure protection is not listed.2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 2026Protection Features: OPP/OVP/UVP/SCP/OCP/OTP.6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026Protection Features page: OCP, OPP, OTP, SCP, UVP (90V full load, 80V no damage), NLO and SIP (surge MOV, inrush NTC and bypass relay) shown. Fan failure protection is not present.

Over-current (OCP), Over-voltage (OVP), Under-voltage (UVP), Over-power (OPP), Over-temperature (OTP), Short-circuit (SCP), No-load (NLO), Surge and inrush (SIP)1Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026Specifications tab: OPP / OVP / UVP / SCP / OCP / OTP.5Measurementcybenetics.com/evaluations/psus/2813Read 14 October 2026Protection Features (Manufacturer) lists OPP, +12V OCP, OTP, SCP, surge and inrush current protection. Protection tests tick UVP at 90 V and 80 V and NLO. The maker lists OVP, which the report does not test.

All-Japanese capacitorsiThe maker states that every electrolytic capacitor is from a Japanese maker. A Japanese bulk capacitor alone is not enough. A spec row such as "Japanese capacitors" that names no exception counts.

Not available

Yes1Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026Overview: 100% Japanese capacitors. The launch article says 100% Japanese electrolytic capacitors.2Press releasemontechpc.com/news-century-iiRead 14 October 2026Article: 100% Japanese electrolytic capacitors.

MTBF (claimed)iThe maker's mean time between failures, such as 100000. An MTTF figure for the whole unit counts too. An MTTF for the fan alone does not. The test temperature goes in the source note.

120,000h2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 2026MTBF >120,000 hrs @ 40°C. Stored as 120000.

Not available

Monitoring and lighting

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Software monitoringiThe unit reports power, temperature or fan data to PC software over a USB or internal connection.

Not available

Not available

SoftwareiThe maker's software for monitoring or control.

Not available

Not available

Built-in power displayiA screen on the unit that shows live power draw or other readings.

Not available

Not available

RGB lighting

No2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 2026AURA SYNC row: No.

No8Retailer pagemaxmybuild.com/power-supplies/montech-century-ii-850wRead 14 October 2026Listing specs: no RGB. Tom's Hardware and the maker page describe no lighting.

Dimensions and weight

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DimensionsiBody without cables. Width and height are the back face with the AC inlet. Depth is the length into the case, which decides case fit.

Width150Height86Depth140mm(5.9 × 3.4 × 5.5 in)2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 2026Dimensions 140 x 150 x 86 mm with no axis names. Hardware Busters prints 150 mm (W) x 85 mm (H) x 140 mm (D). Depth is 140 mm.

Width150Height86Depth140mm(5.9 × 3.4 × 5.5 in)1Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026Specifications tab: Dimensions (LxWxH) 140 x 150 x 86 mm, so depth 140, width 150, height 86. Tom's Hardware says the unit is 160 mm long. The maker value is stored and retailers copy it.

WeightiWeight of the unit alone. Use the Hardware Busters figure on hwbusters.com when the maker states none, not a copy on another site. Maker weights that include cables or the box, such as Corsair's, and retailer packed weights are not stored. A net weight counts unless the maker says it includes the cables.

1.35kg(3 lb)2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 2026Weight 1.35 kg (single PSU). Hardware Busters measured 1.32 kg.6Reviewhwbusters.com/psus/asus-tuf-gaming-850w-evo-gold-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications: 1.32 kg (2.91 lb). ASUS states 1.35 kg and the maker value is stored.

Not available

In the box

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In the boxiItems supplied with this exact model, verbatim. The AC power cord differs per region.

Power Cord x 1, TUF Gaming Cable Tie x 3, User Manual x 12Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 2026Package Contents: power cord x1, motherboard power cable, CPU, PCI-E and SATA & Peripheral cables, TUF Gaming cable tie x3 and user manual x1. The cables are stored in the cables field.

AC power cable, Mounting screws, Velcro-style cable straps, Cable ties, User manual7Reviewtomshardware.com/pc-components/power-supplies/montech-century-ii-gold-850w-atx-3-1-power-supply-reviewRead 14 October 2026In the Box: AC power cable, mounting screws, reusable Velcro-style cable straps, cable ties and a small user manual. Review published 7 September 2026.

Links

Not compared

Product page

www.asus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo1Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evoRead 15 October 2026

www.montechpc.com/century-ii-850w1Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026

Spec sheet

Not available

Not available

Manual

Not available

Not available

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

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Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

8years2Maker product pageasus.com/motherboards-components/power-supply-units/tuf-gaming/tuf-gaming-850g-evo/techspecRead 15 October 2026Warranty 8-year. The page is the global English page.

10years1Maker product pagemontechpc.com/century-ii-850wRead 14 October 2026Specifications tab: Warranty 10 Years. The page is the global maker page and names no market.

Both are also in the API. Back to all power supplies.