PSU Guide

PCMasterRace PSU Ranking and Tiers (2015)

Tier 1 (Best)

The highest quality and most stable PSUs available on the hardware market today. Highly recommended for any situation. These PSUs are what all PSUs should strive to be. These are the only PSUs that should be called “Top of the Line"

Antec High Current Pro
Antec High Current Platinum series
Be Quiet Dark power pro P10
Corsair AX MK1 / AX MK2 / AXi series / AX MK3 plat+
Cooler Master V series / V series
EVGA Supernova G2 and P2
Firepower Silencer MK3 and Aurum PT 1200w
Kingwin Absolute Platinum 550w andLazer platinum
LEPA G1600
Seasonic M12 II (Includes EVO series)
Silverstone Nightjar Platinum
Super Flower Golden King ,Golden Silent
Super Flower Leadex Gold+
XFX Pro series Black Edition/ XXX/ XTS

Tier 2a (Good)

Excellent quality units. For people who have a limited budget, but still want one of the best PSUs on the market. Great for overclocking and 24/7/365 systems. Perfect for some of the most power hungry systems.

Antec EDGE, Earthwatts, High Current Gamer, Truepower Classic Cooler Master VS series
Be Quiet Power zone series, Straight power E9 and E10 Corsair GS, HX / HX v2 series, RM, TX / TXM series Enermax Platimax series (1250 Watts and below) EVGA Supernova B2 series
Firepower Silencer MK III 400 - 850, ZX series High Power / Sirtec Astro GD 1200w, Lepa G500 NZXT Hale82 Modular (650 and 750 Watt models)
Rosewill Capstone, Lightning, Silent Night, Tachyon series Seasonic G / GV2, M12-II EVO, S / M12 II, 512G Silverpower SP 460w
Silverstone SX600-G SFX,
Strider Gold Evolution series, Strider Plus
Super Flower Golden Green / Modular / HX series Sentey Golden Steel Power 850 Watts
Thermaltake Toughpower Gold, DPS Gold series
XFX Core series / Pro series, TS Series 430w / 550w-SEW, XTR series

Tier 2b (Decent)

Lower life span or slightly lower power output than rated. These are still great units, all of which are still within standard ATX specifications. These are suitable for light overclocking.

Azza Platinum 750w 1000w
Antec Basiq series, VP series 350, 450
Be Quiet SFX Power 2, TFX Power 2
Enermax NaXn 82+ (550 to 750 Watts)
EVGA Supernova NEXB / NEXG 750 Watts
Firepower Fatality 2012 1000w Gold, ZT series
Fractal Design Integra M series, Newton R3 Series
FSP Aurum Gold, Aurum Xilencer
Kingwin Lazer gold series, Lepa B650 / B850
NZXT Hale 82 series, Hale 90 Vi / V2 series
Rosewill Fortress Series
Silverstone Strider Gold / Gold S / Plus
Thermaltake Toughpower 1200M+, XT 775M
Zalman ZM-HP 850w / 1000w

Tier 3 (Acceptable)

Meets standard ATX specifications, though closer to the edges than Tier two units. These are still solid units, which still supply stable power to your system. Not ideal for overclocking. These are essentially good for tight budget builds. In truth should opt for a higher Tier if you can afford it. These are the "Good Enough" PSUs.

Be Quiet Dark power pro, Pure power L8 / CM seriesStraight power E9 400 Watts
Bitfenix Fury 750w
Cooler master Elite II 550w, G550M, GX II 550 / 750 Watts, i Series 700 Watts
Cooler master Silent pro M2, Gold, Platinum series
Corsair CS, CX, CXM, RM, VS series
Deepcool Quanta series 750w 1000w 1200w
Enermax naXn ADV, Revolution X't, Triathlor / Triathlor FC series
EVGA 500B / 600B, Supernova 750 Watts Bi / Gi, Supernova Classified 1500W
FSP Aurum 92+ 650M, Aurum S 700w
Fractal Design Integra R2 650 / 750 Watts, Tesla R2
InWin Commander III, GreenMe series
Kingwin Powerforce 850w, Lepa G900
Rosewill Hercules 1600W, Hive series
Silverstone Strider Essential 400w 500w 600w
Thermaltake Litepower series, London 550w
Xilence Performance A series
Zalman GS / GT Series

Tier 4 (Bad)

Not for Gaming or Heavy use. May not output labeled power and fails standard ATX specifications slightly. Often cheap components are used to meet a super cheap price. Reliability and quality are poor.

Aerocool GT Series, Integrator, Strike-X series, Templarius series E-power Fatality 2013, FSP Raider series
E-power InWin Glacier , LC power, MX-F1 series
NZXT Hale82N 650w, Hale82 V2 700w
Thermaltake Smart series
Zalman US Fanless 400w

Tier 5 (Worst)

Replace immediately! These units are NOT recommended for any system, no matter the purpose. They're faulty and may even be a safety hazard. Reference to higher tiered models for a better and potentially money-saving unit. This is the kind of stuff you would find on a Chinese street market held together with hot glue. To be clear, Some brands on this list make other great products but their PSUs are abominations.

A-TOP technology Apevia
Apex
Artic / Ace
Aspire
ATADC
ATRIX
Broadway Com Corp CIT
Coolmax
Deer
Diablotek
Dynapower
Dynex
Eagletech
Enlight
Evo labs
EZ-cool
Foxconn
G7
HEC / Compucase Orion
HEDY
iStar computer co.
Jeantec
JPac
Just PC
Linkworld electronics
Logisys computer
Macron
MSi
NMEDIAPC
Norwood Micro/ CompUSA
Okia
Powercool Powmax
Pulsepower Q-tec
Raidmax Rocketfish SFC
Sharkoon Shuttle
Skyhawk Startech
Storm
Sumvision Tesla
Thermaltake BronzeMunich 430w
Thermaltake Purepower NP / RU
Thermaltake TR2 and TR2-RX Trust
Wintech
Winpower
xTreme (Cyberpower PSUs)
Youngbear
Zebronics

credit to dottorrent, /u/Teckademics, and /u/dundizzle