PSU Tier List (2019) : The Definitive  Hierarchy Guide of Power Supply Units

Are you looking for the most suitable PSU for your PC and confused of the required PSU specs for your PC?

Then you should know about the PSU ratings and Tiers of different PSU.

In this article I will tell you about the ratings of the PSU and on basis of which things they are made.

I will also let you know about the tiers of PSU in 2019 by which you can get an idea about which ones are best and which ones are the worst.

This is a fact that:

Power Supply Unit aka the PSU is one of the most important component of your PC.

Choosing the best PSU for your computer is very essential to ensure the lasting of the other components. Wrong PSU for your PC may cause serious damage to the components. And it can get you into a great loss.

which -powersupply-is for-you

Why Your Power Supply Choice Is Crucial?

Let me tell you an important thing:

If you buy a low-end PSU then, you won’t be able to upgrade to a high-end graphics card.

Your gaming power supply won’t give you a higher gaming experience or higher frame rate, but it’s a quiet essential component. As a result, you need to take your decision wisely with the purpose of building a high-quality gaming computer.

Even a power supply of 800W-1000W range is going to be overkill for you unless you run a multiple video card configuration and getting into some extreme system overclock going on.

Simply:

There really isn’t a need for this much power.

7 Points to Consider Before Buying A Power Supply Unit (PSU)

I have given some common as well as very important that you need to ask yourself before purchasing a PSU. The answers to these questions will give you a better idea about which one to choose from those many options that are available on the market.

1. How Many Watts Do I Need for My Gaming PC?
2. What is the +12V Rail?
3. What is an 80Plus Rating?
4. Should I Get A Modular Power Supply?
5. Do You Need A Good Power Supply for Gaming?
6. Can You Have Too Much Wattage?

7. Is Energy Saving Important for me?

Don't worry if you are confused to answer. By reading this post till the end you will be sure of what are you gong to purchase.

Choosing The Perfect PC Power Supply (PSU)

Power supply units are the most sensitive part your your computer which can cause a big harm if not chosen wisely. 

Your PC is running nicely with your power supply unit doesn't necessarily mean that it's perfect/sufficient for your PC. Sometimes your PC may require more power than usual times.

Moreover, while overclocking your PC's CPU/GPU/RAM power consumption will be very high.So, for such a high end PC a Beast Power supply is  a must.

Also, If you would like to overclock your RAM then chis this RAM Overclocking tutorial.

It gets better:

When you choose a PSU perfectly and it is also capable to run your future upgrading component smoothly.

But choosing the perfect Power supply for your PC isn't a child's play.

You need to have a good amount of knowledge about PSU before buying it. There many factors that you will need to understand separately for this.

You might be wondering:

What if I buy  a cheap but high wattage PSU or an expensive PSU?

The simple answer:

That's how people fall in trouble with power supplies for the first time.

Don't worry.

uninterruptible-power-supply

Read till the end and you will get to know all about power supplies and which one is the most suitable for your PC.

How Many Watts PSU Do You need?

I know it doesn’t make any sense:

To spend money on a way more powerful power supply than that of you will ever need. You can get to know about how much power will your new system require by using some power consumption calculators. I have given some links of some power calculators below that will give you a good idea about your system's power needs:

4 Important PSU Ratings Explained

psu-efficiency

Power supply units have 4 important ratings marked on them which give you the information of what can you get as output from the PSU.

1. Efficiency

Efficient PSU means less electric consumption and fewer e-bills. the more a power supply is efficient the more it can give output with ratio to it's input.

2. Stability

Stability is one of the most important feature of a power supply. If a Power supply isn't  stable enough,then it may shut down or lower its capacity under high temperature or other circumstances.

3. Safety

All of your PC component's safety depends upon your power supply. A good power supply is always well built and has good safety mechanisms like OVP (Over Voltage Protector) and UVP (Under Voltage Protector) etc.

4. Components used

A power supply is generally consists transformers, rectifiers, filters and regulator circuits.

Some power supplies also come with good quality cooling fans. if these components are of good quality then the power supply will perform better as well as last for longer period.

These factors have a great impact on the performance of the Power Supply Unit. The Power supplies have ratings like:

80+, Bronze , Silver, Gold, Platinum and Titanium. Some power supplies don’t have any rating at all. These ones are recommended to be ignored while building PC.

Besides these ratings you can also choose your PSU by observing my given Tier list for PSU in 2019. I have made a list for you to get a clear idea about which power supply to buy.

Based on factors like Efficiency, stability, components used and safety I have made this tier list.

psu-meme

5 Best Gaming PSU in 2019

There are several great PSU options for gaming enthusiasts... 

However, by taking price to performance ratio into consideration, I have given a list of 4-5 very reliable options for different powers which will help you to make a wise decision in choosing an excellent power supply for your next gaming PC.

There’s no doubt that:

You will need a good quality power supply for building a new gaming PC or Workstation. You shouldn’t be frugal when it’s time to purchase your power supply. Thankfully, you can’t go wrong if you choose from this power supply list.

Thankfully, you can’t go wrong if you choose from this power supply list:

1. Bitfenix BF450G

Best Cheap PSU ($60/£60 or less)
Max. DC Output: 450W

Efficiency: 80 PLUS Gold, ETA-A (88-91%)|

Form Factor: ATX12V v2.4, EPS 2.92 

Cooling: 120mm rifle bearing fan

Modular: No 

Warranty: 5 years

Pros: Full power at 46°C • High efficiency • Good ripple suppression • Tight load regulation • Quiet operation • Excellent build quality • Compact dimensions
Cons: Non-modular cable design • Power factor is a little lower than normal

Alternate Pick: Corsair CX450 

bitfinix-bf450g

2. Corsair RM550x

Best PSU: Up to 550 Watts
Max. DC Output: 550W 

Efficiency: 80 Plus Gold, ETA-A (88-91%) 

Form Factor: ATX12V v2.4, EPS 2.92 

Cooling: 135mm Rifle Bearing Fan

Modular: Yes 

Warranty: 10 years

Pros: Full power at 48°C • Efficient • Semi-passive operation • Silent • Japanese caps • Fully modular
Cons: Expensive • No fan test button • Distance between 4-pin Molex connectors

Alternate Pick: Bitfenix Whisper Series 550W 

corsair-rm550x

3. Seasonic SSR-600TL

Best PSU: Up to 650 Watts
Max. DC Output: 600W 

Efficiency: 80 PLUS Titanium, ETA-A+ 

Form Factor:ATX12V v2.4, EPS 2.92 

Cooling: Passive 

Modular: Yes

Warranty: 12 years

Pros: Resilient to high temperatures • Efficient • Accurate Power Ok signal • Dead silent • Fully modular • 2x EPS & 4x PCIe connectors • Excellent build quality and long warranty
Cons: Expensive • Distance between peripheral connectors • Not top-notch transient performance • Inrush current with 230V input

Alternate Pick: EVGA SuperNOVA 650 G3 

seasonic-ssr-6000tl

4. Seasonic SSR-750PX

Best PSU: Up to 750 Watts
Max. DC Output: 750W

Efficiency: 80 PLUS Platinum, ETA-A (88-91%) | 

Form Factor: ATX12V v2.4, EPS 2.92 

Cooling: 120mm Fluid Dynamic Bearing Fan 

Modular: Fully modulaR 

Warranty: 10 years

Pros: Reasonable Price • Full power at 47°C • High efficiency • Good build quality • Quiet operation • 10-year warranty • Compact dimensions
Cons: EMI • 3.3V transient response • High OPP • 5VSB OCP • Short distance between peripheral connectors

Alternate Pick: Corsair SF750, Corsair RM750x 

seasonic-ssr-750px

5. Corsair AX850

Best PSU: Up to 850 Watts
Max. DC Output: 850W

Efficiency: 80 PLUS Titanium, ETA-A+ (91-94%) 

Form Factor: ATX12V v2.4, EPS 2.92 

Cooling: 135mm Fluid Dynamic Bearing Fan 

Modular: Fully modular 

Warranty: 10 years

Pros: Quiet Operation • Efficient • Great performance overall • Long hold-up time • Top build quality • Ten-year warranty
Cons: Expensive • EPS connectors should use 16AWG wires • Short distance between the peripheral connectors • High OCP on the minor rails

Alternate Pick: BitFenix BP-WG850UMAG-8FM, EVGA SuperNOVA 850 G2

corsair-ax850

PSU Tier List : 6 Major PSU Hierarchy

These PSU tiers are based on performance. In this list you'll find the followings: 

​​​​The order from the worst to the best in the list is 1-6.

Tier-1 : for Low-end PC

Tier 1 units inexpensive but they still offer a good power solution to your PC. Yes, they are reliable, but once again they are not better suited highly power hungry components. I’ve given here a good number of power supplies for you to choose from.
If you are on a smaller budget, then you can’t go wrong with this tier.

If you are on a smaller budget, then you can’t go wrong with this tier.

Bitfenix - BF450G

•Cooler Master - Elite series

Corsair - CX450
EVGA - 400W
FSP - Hexa series
Thermaltake - TR2

Tier-2 : for Average Office PC

Tier 2 drops down price wise once again and this units sit on the middle of price and performance. You can buy this reliable power supplies without spending your life savings in the process.

I am sure that:

You’ll feel like every dollar is well spent.

Antec - Basiq VP-F, Basiq BP,Basiq VP
be Quiet! - Pure Power 10 350W
Bitfenix - BPA series
Corsair - Rev. 2 CX "Green unit" variants, VS "grey units"
Enermax - NaXn 82+ series
EVGA - 450B/500B/600B/700B, NEX-B,430W/500W/600W 80 PLUS units
FSP - Raider Silver series
Fractal Design - Integra R2 series
LEPA - MX-F1 series
NZXT - Hale82 V2 series
OCZ - ZT, ModXStream, Fatal1ty
Rosewill - Glacier,Hive, ARC (M) series
Silverstone - Strider Essential, Bronze SFX
Thermaltake - LitePower, ToughPower, Smart series < 750W
XFX - XT series
Zalman - GS/GT series

Tier-3 : for PC with Low-end GPU

Tier 3 is the region that is suitable for the majority of gamers who want a functional machine with reliable components. So, the power supplies in this tier are more affordable, yet packed with high quality.

Antec - EarthWatts/EA Green, Earthwatts Platinum, High Current Gamer, NEO ECO series
be Quiet! - Power Zone, Pure Power L9, Straight Power E9, Pure Power L8
Cooler Master - GM, GX Storm, MasterWatt Lite series
Corsair - Old CXM "Green unit" variants, Rev. , GS-series
Cougar - LX series
Enermax - Revolution X't series
EVGA - BQ under 750W, NEX Gold series
Fractal Design - Tesla R2 500W
Inwin - Classic Series
Rosewill - Capstone G series
Seasonic - SS, SSP, S12II/M12II, ECO 430W
Silverstone - Strider Plus, Gold SFX series
Thermaltake - Toughpower Gold, Paris series

Tier-4 : for Work Stations

Tier 4 Power supplies are noted from various manufactures but almost all of them perform more or less similarly.

Bottom line:

They are so called mid-range power supplies, there position is in between good and bad but they are healthy and resoundingly acceptable.

be Quiet! - Straight Power E10
Bitfenix - Fury
Corsair - CXM, CSM,Rm series
Cougar - GX-S
Deepcool - DQ-ST series
Enermax - Enermax Revolution SFX 650W
EVGA - BQ 750W and up, B3 series
Fractal Design - Tesla R2, Integra M series
FSP - Hydro X, Aurum CM, Aurum Pro
Lian Li - SFX-L series
LEPA - G600
NZXT - Hale82 N lower-wattage units
OCZ - ZX series
PC Power & Cooling - Silencer Mk III, Turbo Cool
Riotoro - Onyx series
Rosewill - Lightning, Silent Night, Tachyon, Photon
SAMA - Armor Gold
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 >650W
Zalman - EBT series

Tier-5 : for High-end Gaming PC

Tier 5 is where the budget options ceases, and the chances are if you are a PC gaming enthusiast then these power supplies will hopefully satisfy you.

Antec - EDGE, TruePower Classic series
be Quiet! - Pure Power 10 , Pure Power 11
Cooler Master - VSM-series (semi-modular)
Corsair - Most RM variants, HX, CX grey.
Enermax - Digifanless, RG, GX series
EVGA - G1+, GQ, G3, B2, 550W and 650W GS series
Fractal Design - Edison M, Tesla R2 650W/1000W, Newton R3 series
FSP - Hydro G, Dagger SFX
Gigabyte - XP1200M
NZXT - Hale82 N higher-wattage versions
Rosewill - Quark, Fortress, Capstone series
Seasonic - S12G, G-series/SSRM, M12II 750W/850W
Super Flower - Golden Green, Leadex Silver
Thermaltake - Toughpower Grand/RGB, Toughpower Grand Platinum, Toughpower DPS Platinum
XFX - Pro XXX, XTR, TS Gold series

Tier- 6 : for Gaming PC with Multiple GPU

Tier 6 power supplies are the units for which you will have to sacrifice precious cash.
They provide the most basic functions of a power supply with absolutely nothing else to offer.

But one thing you must know that:

These are some kind of stress reliever for the PC enthusiasts.

There’s no doubt that these units will ever let you down. These Powersupplies are made for Beast like Gaming PC or workstations.

Aerocool – Project 7 series
Antec – High Current Pro, High Current Platinum
beQuiet! – Dark Power Pro P10, Dark Power Pro 11, Straight Power 11 series
Bitfenix – Whisper series
Cooler Master – V-series (modular, not to be confused with the VSM), MasterWatt Maker
EVGA – G2, G3, P2, PS, T2, 1000G1, 850W and above GS series
Enermax - Platimax, Platimax Digifanless
FSP – Aurum PT series
GIGABYTE - AP850GM
LEPA – G1600 series
Mistel - MX650 series
Riotoro - Enigma series
XFX – Pro Gold, Pro Black, XTS series
NZXT- Hale90V2 series
Riotoro – Enigma series
Seasonic – X, Platinum, Snow Silent, all Fanless units, Prime, Focus Plus Gold/Platinum series
Sentey – Platinum Power, Golden Steel Power
Corsair – AX, AXi, HXi, RMi, RMx, SF, Vengeance, grey-label HX (2017), 2017 TXM greater than 650W
Enermax – Platimax, Platimax Digifanless series
SAMA - Armor Platinum/Titanium series
Silverstone – Nightjar series
Super Flower – Leadex Gold/Platinum/Titanium, Leadex II series
Thermaltake – 1250D-T RGB, Toughpower Grand/RGB 1200W

FAQ

Question: Does PSU rating matter?

Answer: Yes,there are few differences in performance.

Question: How does PSU tier help?

Answer: It helps in differentiating among the PSUs and also classifies the PSUs among groups to know about which one is better.

Question: What is modular PSU?

Answer: : Modular PSUs are the ones having no cables attached to them BUt they come with cables so that, you can use cables as your want.

Question: What is semi modular PSU?

Answer: Semi Modular PSUs are the ones having only the cables of 24 Pin and Pin cables attached to them and they come with other cables too so that, you can use cables as your want.

Final Thoughts

Choosing the Right PSU for you is as essential as protecting your PC from any horrible damage.

Choosing the Right PSU for you is as essential as protecting your PC from any horrible damage.

Good power supply units can cool it's internal body efficiently and doesn't spread heat inside the PC case. for this the PSU needs to have good Fan. Some of the new PSU also have the feature to change the fan or upgrading them.

Talking of thermal issues, you can fix your PC's thermal problems very easily with few tricks. We have a separate article on How to monitor CPU & GPU temperature where you can find the easiest way to control your PC's temperature.

If you choose a weak PSU you will need to upgrade it while upgrading other components of your PC.

So, I will recommend you to spend your money a little bit more for buying a good PSU for your PC.

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