Credit to @Starelementpokeand @Energycore for helping out with this long-awaited refresh of the old PSU tier list by Aniallation (who previously went several months without logging in), leaving the old list in need of help. This list does not replace my PSU Whitelist as this list only puts units that are still sold today into tertiary systems while the Whitelist blanket covers units that are quite old to brand new. This is simply an update of the list that was flawed in creation by the PCMR subreddit and in dire need of a refresh.   This list is subject to change as new PSUs come out on a regular basis and standards may change or issues with units on the list may develop. A list of PSUs awaiting a tier on this list is at the bottom.   Tier 1 - Best Aerocool - Project 7 Antec - High Current Pro, High Current Platinum be Quiet! - Dark Power Pro P10, Dark Power Pro 11 Bitfenix - Whisper Cooler Master - V-series (modular, not to be confused with the VSM), MasterWatt Maker Corsair - AX, AXi, HXi, RMi, RMx, SF, Vengeance, grey-label HX (2017), 2017 TXM Enermax - Platimax, Platimax Digifanless EVGA - G2, G3, P2, PS, T2, 1000G1, 850W and above GS FSP - Aurum PT LEPA - G1600 NZXT Hale90V2 Riotoro - Enigma Seasonic - X, Platinum, Snow Silent, all Fanless units, Prime, Focus Plus Gold/Platinum Sentey - Platinum Power, Golden Steel Power Silverstone - Nightjar Super Flower - Leadex Gold/Platinum/Titanium, Leadex II Thermaltake - 1250D-T RGB XFX - Pro Gold, Pro Black, XTS Tier 2 Antec - EDGE, TruePower Classic Azza - Platinum Cooler Master - VSM-series (semi-modular) Corsair - Most RM variants, HX (old) Enermax - Digifanless, RG, GX EVGA - GQ, B2, 550W and 650W GS Fractal Design - Edison M, Tesla R2 650W/1000W, Newton R3 FSP - Hydro G, Dagger SFX Gigabyte - XP1200M Kolink - Continuum NZXT - Hale82 N higher-wattage versions Rosewill - Quark, Fortress, Capstone Seasonic - S12G, G-series/SSRM, M12II 750W/850W Sentey - Solid Power SS Super Flower - Golden Green, Leadex Silver Thermaltake - Toughpower Grand/RGB, Toughpower Grand Platinum, Toughpower DPS Platinum XFX -  Pro XXX, XTR, TS Gold Tier 3 Antec - Neo ECO be Quiet! - Straight Power E10, Pure Power 10*** Bitfenix - Fury  Corsair - 2017 "Grey unit" CXM***, CSM, some RM variants, 2017 CX - 450W/550W CX have one PCIe connection so don't use a GPU with these that requires more than two 6+2-pin connections.  Cougar - GX-S Deepcool - DQ-ST Enermax -  Enermax Revolution SFX 650W*** EVGA -  BQ 750W and up Fractal Design - Tesla R2, Integra M FSP - Hydro X, Aurum CM, Aurum Pro Lian Li - SFX-L LEPA - G600 NZXT - Hale82 N lower-wattage units OCZ - ZX PC Power & Cooling - Silencer Mk III, Turbo Cool Riotoro - Onyx Rosewill - Lightning, Silent Night, Tachyon, Photon Silverstone - Gold Evolution, Strider Gold, SX650/700/800 SFX, Strider Titanium Super Flower - Platinum King Thermaltake - DPS Gold/RGB, London, BlueEvo 2.0, Smart Pro RGB, Smart series >= 750W Vivo - 24K 650W XFX - Core > 650W, ProSeries Bronze >650W, TS Bronze Zalman - EBT Tier 4 Antec - EarthWatts/EA Green, Earthwatts Platinum, High Current Gamer be Quiet! - Power Zone, Pure Power L9, Straight Power E9, Pure Power L8 Corsair - Old CXM "Green unit" variants, Rev. 3 "Green unit" variants, GS-series Cooler Master - GM, GX Storm Cougar - LX Enermax - Revolution X't EVGA - BQ under 750W, NEX Gold Fractal Design - Tesla R2 500W Inwin - Classic Series Rosewill - Capstone G Seasonic - SS, SSP, S12II/M12II, ECO 430W Silverstone - Strider Plus, Gold SFX Thermaltake - Toughpower Gold, Paris Tier 5 Antec - Basiq VP-F, Basiq BP Corsair - Rev. 2 CX "Green unit" variants, VS "grey units" Enermax - NaXn 82+ EVGA - 450B/500B/600B/700B, NEX-B, B3 OCZ - ZT, ModXStream Rosewill - Glacier Silverstone - Bronze SFX XFX - XT Tier 6 Antec - Basiq VP Bitfenix - BPA Cooler Master - B2 Corsair - VS "orange units" EVGA - 430W/500W/600W 80 PLUS units FSP - Raider Silver Fractal Design - Integra R2 LEPA - MX-F1 NZXT - Hale82 V2 OCZ - Fatal1ty Rosewill - Hive, ARC (M) Silverstone - Strider Essential Thermaltake - LitePower, ToughPower, Smart series < 750W Zalman - GS/GT Tier 7 - Worst Cooler Master - Elite series EVGA - 400W non-80 PLUS certified FSP - Hexa Thermaltake - TR2 These are all crap   Currently awaiting more info   Some things on this list may not be perfect. Let me know if you believe a PSU is undeserving of its spot on here and provide links to back up your claim and it may be moved.    Some helpful links:   How Many Watts Do I Need? - How much power will you need for your system? This guide helps you get a PSU that has more than adequate wattage for you. 80 PLUS Efficiency and What It Really Means - general guide to 80 PLUS efficiency and what it entails. Currently pinned on the Cases & Power Supplies subforum. STRM's PSU Whitelist - Is it a firebomb?™      Ask any questions below!    How do you even grade these things? *** But I don't like Tier Lists!!!!111!!!!