The role of power supplies is often underestimated and while it is true that it doesn’t affect your PC’s performance, it does directly affect your components in many ways.
If you ignore the importance of a good power supply, then you may put your whole PC in danger. Therefore, we always recommend buying a solid and reliable power supply that can last for several years.
As the Ryzen 7000 series is out, things have changed somewhat when we consider the power requirements of these new processors. In this post, we will talk about how this will affect the power draw and what power supplies will be best for your PC.
Using Your Current Power Supply
If you already own a power supply from your previous or current build which has enough wattage capacity, you can simply skip buying a new power supply.
Most power supplies that have 4+4 EPS power connectors for powering a CPU will be sufficient for your Ryzen 7000 CPU needs. However, if your wattage is falling short, it’s time to buy a new one.
It’s still important to understand that if your power supply doesn’t have at least 4+4 pin EPS power connectors, you must buy a new one because the power requirement of Ryzen 7000 CPUs particularly the higher-end ones is much more than the previous Ryzen CPUs and many Z690 motherboards come with 4+8 pin power ports.
So, providing a sufficiently reliable and continuous voltage is essential especially if you plan to overclock which may succeed the stated TDP of these processors.
Power Requirements Of Ryzen 7000 CPUs
Since it’s important to consider the power consumption of your processor before buying a power supply, here is a chart of Ryzen 7000 CPUs with their default TDPs.
|Ryzen 5 7600X||6/12||105W|
|Ryzen 7 7700X||8/16||105W|
|Ryzen 9 7900X||12/24||170W|
|Ryzen 9 7950X||16/32||170W|
Note that these are the default TDPs as stated by AMD and the real-world power consumption will differ based on the load and clock speeds of these processors.
These CPUs easily exceed their TDPs even when they are not overclocked and when they are run at 100% load on their boost clock speeds. The 7900X and 7950X are particularly known to draw a power ranging from 170W-200W and 200W-250W respectively which are significantly higher than the stated TDPs.
This means you cannot just add the TDPs of all your system’s components and get a power supply based on that.
You should always add another 200W on top of the total max power consumption of your whole system if you don’t want your system to bottleneck.
For example, if the total max power consumption according to the default TDP of your PC components is 470W, get at least a 650W power supply to be on the safer side. You can always go higher which allows further smaller upgrades and even the continuation of the same PSU when you change your components.
Best Power Supplies For Ryzen 7600X and 7700X
Considering that you will use a CPU cooler, at least 2 storage drives, a few case fans, a GPU with around 150-300W of power consumption, and one or two additional accessories, you should add 250-400W by default to your power requirements.
Add another 120W on top of that for your CPU which includes the 7600X and the 7700X both of which have a TDP of 105W. So, we have a total max power consumption of your system somewhere between 370W-520W. This means we need at least 550W-650W of reliable power supply.
Cooler Master Watt 650W Bronze
Cooler Master is producing great power supply since ages and has been successful with its premium V series in the past and with the MasterWatt series too that provides great options at a low price.
The MasterWatt 650 provides 650W of reliable wattage capacity with 80 Plus Bronze rating that provide up to 89% efficiency on typical loads. The voltage regulation is also ideal and remains under 2.5% and the ripple noise is also in an acceptable range1)https://www.kitguru.net/components/power-supplies/zardon/cooler-master-masterwatt-650-power-supply-review/.
It comes in a semi-moular design with a few cables pre attached and the rest you can add as you need. This allows a cleaner cable management compared to non-modular power supplies. Moreover, the Semifanless mode allows it to work without any noise till the load is above 15%.
Thermaltake Toughpower GX1 RGB 600W Gold
Thermaltake has Toughpower series which is one of the most affordable PSU series that comes with 80 Plus Bronze and Gold ratings. This one is the GX1 RGB 600W Gold that provides up to 90% efficiency on typical loads and also brings RGB LEDs.
At a cost of just 60 bucks, it is rare to get an 80 Plus Gold PSU with 600W and this one doesn’t lacks anywhere except that it is non-modular and comes with beefy cables.
It features ideal voltage regulation, low heat generation, and all the cables for powering your CPU, GPU, and other stuff. If you are on a tight budget but want the best at a cheap price, consider this PSU that will perform well and protect your components from OPP, OVP, and SCP.
EVGA SuperNova 650 G+
- EVGA 650 G+ "The New Gold Standard for Performance...
- 80 Plus Gold certified, with 90 percent...
- Fan Size/Bearing: 135 millimeter fluid dynamic...
- Heavy duty protections, including OVP, UVP, OCP,...
EVGA is also one of the top manufacturers of PSU and has a lot, I mean a lot of series in the PSU section which sometimes confuse the customers a lot. One of them is the SuperNova G+ series which is kinda similar in performance and specifications to most G series power supplies.
This particular model is one of the top Gold rated PSUs that feature a bigger supply brick with strong and reliable components. It is fully modular and comes with dual 8-pin EPS connectors for CPUs. So, you shouldn’t be having any problem with that and neither with powering other components as there are adequate number of cables for every component. EVGA also provides a Power On self tester which helps in troubleshooting the power supply and comes in handy in many occasions.
As for the performance, it is provides up to 91% power efficiency on typical loads and meets the 80 Plus Gold rating standards easily. The voltage regulation is very tight, mostly under 1% and an insane hold up time of up to 27.2ms that stands at the top of the chart.
Corsair RM750X Gold
- Fully modular, so you only connect the cables that...
- A 135mm ML fan utilizes a magnetic levitation...
- EPS12V connector for compatibility with modern...
- 100% Industrial-grade, 105°C rated Japanese...
For those who are looking for a no-compromise solution and are willing to pay over $100, we have the famous RMX series from Corsair that has been in the talks for years.
The RM750X 2021 edition will make sure you don’t fall short in wattage capacity and will provide you up to 90% of power efficiency. Corsair RMX series is amongst the top recommended PSU series by most reviewers and doesn’t lack in performance whether you consider the voltage regulation, noise, ripple, or efficiency.
This model comes in a fully-modular design and gives you flat cables for each component that are easy to route and manage. It is not only our favorite PSU but has been rated very highly by the customers.
Best Power Supplies For Ryzen 7900X and 7950X
Assuming that you are going with a higher-end GPU with the 7900X or the 7950X, the power requirements will increase and as both these CPU consume considerably higher power than the 7600X and 7700X, we will need a higher wattage PSU.
If you are buying a GPU like RTX 3080 or 3090, we recommend going with the 850W PSU listed below or if you are considering a more power hungry GPU like the RTX 3090 Ti or 4090, consider the 1000W PSU.
NZXT C850 Gold
- MORE EFFICIENT: At 50% load and high-line input...
- FULLY MODULAR: Use only the cables you need to...
- COMPATIBLE AND HIGHLY-TESTED: C series is built...
- MORE PRECISE AND ERROR-FREE: Micro controller...
NZXT is although comparatively newer in the PSU category, it has not failed in producing top PSUs for PC users just as it has never failed in producing top PC cases.
The NZXT C850 Gold is a premium solution to all of your power requirements and gives you 80 Plus Gold rated performance for 90% power efficiency. It is fully modular and comes in different wattage capacities starting from 550W all the way to 1000W.
The cables are fully sleeved and adequate in quantity. The voltage regulation is very tight on all rails, the transient response is perfect, and the hold up time is also ideal at around 21ms.
Except that it is noisier than the Corsair RMX series, there isn’t much to complain especially when the pricing is very much similar.
EVGA SuperNova 1000 P3 Platinum
- 80 PLUS Platinum certified, with 92% (115VAC) /...
- 100% Japanese Capacitors ensure long-term...
- Fully Modular to reduce clutter and improve...
- Full-bridge LLC Resonant Converter and DC-DC...
Last but not least, for most PC users, the EVGA SuperNova 1000W PSU will be sufficient for powering all the high-end components as well as for further upgrades in the future.
The SuperNova 1000W P3 is not just any other premium PSU but a very power-efficient PSU with 80 Plus Platinum rating that provides up to 93% power efficiency. The voltage regulation is at its best and beats all the other power supplies here and has extremely low deviation2)https://www.tomshardware.com/reviews/evga-supernova-1000-g3-psu.
This PSU is big measuring 86mm x 150mm x 180mm and features a 135mm fan with fluid dynamic bearing that creates low noise. The unit uses 100% Japanese capacitors that makes it very reliable and the 10 years of warranty from manufacturer is already there if you ever face any trouble.
Choosing a power supply for a CPU is not that difficult but what is more difficult is finding a better and more reliable PSU among all the units we have right now. Let me know which power supply you are going with and if you any questions, let me know them in the comments section below.