EVGA SuperNOVA 1300 G2 1300W Power Supply Review

EVGA has a bit of a rocky road with HardOCP when it comes to PSU reviews. Today we give EVGA the opportunity to redeem itself with its 1300 watt powerhouse touting "exceptional efficiency" and a fully modular design that is "silent and optimized for the enthusiast." All this with a 10 year warranty? It must be a badass.



The EVGA SuperNOVA 1300 G2 is just the 4th power supply we have seen from EVGA. Among those units there have been more misses than hits with none of the units we have seen being truly good. So, today, with the SuperNOVA 1300 G2 we don't really have what one would call a good history going for this unit. That said, this unit comes from a completely different vendor than any of the previous power supplies we have seen from EVGA. That change could be good or it could be, well, more of the same. Which will it be? Let's see.

HardOCP’s testing methodology is intended to very much push power supplies to their advertised wattage rating in temperatures that will represent some of the hottest computer enthusiast cases. So if a unit passes all our testing it is definitely not something to take lightly. In fact we expect more power supplies to fail our testing than make it through unscathed.

Build Quality

The EVGA SuperNOVA 1300 G2 sets off on a good foot today when it comes to build quality as this unit overall provides a very good package with only a few asterisks on that. The exterior of this unit takes just about all of the good things from the EVGA NEX-1500 Classified and promptly dumps all the garbage which really makes this unit what the NEX-1500 Classified should have been. When we move to the interior, this unit shares little in common with previous EVGA units we have reviewed as it is from SuperFlower. The topology is modern with a resonant LLC primary and a synchronous rectification secondary that use DC-DC VRMs for the minor rails based on SuperFlower's Leadex design. The actual interior build quality is generally very good but it does happen to encompass all of the asterisks involved with this unit’s build quality. The layout is tidy and generally well designed giving a very good first impression. Where things get a bit dicier comes when we start looking closer and we see that the PCB has some rather less than stellar soldering quality and fixes and some of the component selections are not good. Certainly, the Nippon Chemi-con capacitors are very good (standard and solid) but the CapXon ones are not. The fan included is a Globe Fan which is interesting as other examples of this model do not share this fan, why? When it comes to documentation and support, this unit is the usual nightmare that EVGA has become known for in our reviews. Why EVGA can not get this in hand is unknown, but its warranty policy is literally the absolute worst we have seen and so long I will just refer you back to page 2 in case you have recovered from that trauma enough to read it again.

Load Testing

The load testing results for the EVGA SuperNOVA 1300 G2 are a case of good news/meh news today. The voltage regulation is definitely part of the good news today as we saw the 12v rails drop by up to 0.2v, the 5v rail by up to 0.04v, and the 3.3v rail by up to 0.03v over our load parameters. These values mean that this unit bests the Enermax MaxRevo 1350W, SilverStone ZM1350, and the Thermaltake Toughpower 1350W. Really, the only truly comparable unit we have seen that this unit fell behind in this aspect recently (loose definition there) is the Seasonic X-1250. Additionally, the unit did pass the Torture Test and the voltage regulation changes are calculated in above. When we look to the efficiency, we see that the unit posted efficiency values which ranged from 85.32% to 90.25% at 120v and 83.86% to 89.44% at 100v. Those values, while good enough, were a bit concerning given that this unit is rated for 80 Plus Gold. When we moved on to the 80 Plus Test, these fears were somewhat borne out as this unit finished testing with efficiency values of 89.74%-90.28%-86.66% which means that it missed the 80 Plus Gold cut-off at full load by ~ 0.34%. Overall though, the voltage regulation really has this unit performing at a high level so far.

In a bit of a step backwards, we see that the EVGA SuperNOVA 1300 G2 passes the Transient Load Test but has a hard time keeping up with its peers. The peak change on the loaded 12v rail was ~370mV while the peak change on the loaded 5v rail was ~120mV. The results on the unloaded 5v rail during the 12v load saw a drop of ~70mV. When we look at the competition, the SuperNOVA 1300 G2 never quite manages to best any of the competition. At best, the SuperNOVA 1300 G2 manages to end mixed compared to the Thermaltake Toughpower 1350W and Enermax MaxRevo 1350W. The rest of the time, we see that this unit trails the SilverStone ZM1350 and the Seasonic X-1250. Overall, that makes this unit one of the worst in this aspect of our testing among comparable units, which is not really where we wanted to see this unit head after the spectacular start from earlier in testing.

DC Output Quality

In the DC Output Quality portion of testing, we see the SuperNOVA 1300 G2 passing and rebounding compared to the competition after the less than stellar Transient Load Test results. Indeed, this unit starts off testing with all of the rails showing peak trace amplitudes of less than ~10mV. As testing progressed, the traces increased until the final peak trace amplitudes were ~20mV on the 12v rail and ~15mV on the minor rails. These values are excellent in regards to the ATX12v specification limits and competition. As it stands, the SuperNOVA 1300 G2 bested the all of the competition except for the Thermaltake Toughpower 1350W which happened to throw out one rail that did better than this unit. As such, this is an excellent rebound from the Transient Load Test and puts this unit back at the head of the pack. That is what we like to see EVGA, come up from the mat swinging!


While the EVGA SuperNOVA 1300 G2 has a number of features going for it that should allow it to be quiet, it still is a 1300W power supply that has to be cooled at full load and be operational. As such, at full load, and loads above ~75%, this unit is not the quietest power supply we have ever had in for testing. The noise starts off faint and hard to detect but it does grow during the Torture Test and Test #4 to be readily apparent in our load testing environment by the end of testing. The ramp on the fan does seem some what aggressive and if this was swapped for a higher quality bearing type it probably could have curbed some of that noise output. However, that isn't the case right now and right now this unit is going to make some noise at full load. Now, if you are running this unit at full load then you also probably have something else in your system making a good amount of fan noise as well, so this likely a moot point. In the end, this unit will likely make most people happy since they won’t actually push the power supply to such high output levels but this is one of the few areas that SuperFlower could work on with this design.

Paul's Thoughts:

The EVGA SuperNOVA 1300 G2 is what the EVGA NEX-1500 Classified should have been. Literally everything that EVGA did wrong on the NEX-1500 Classified was done right on the SuperNOVA 1300 G2. That coupled with the other very "meh" units we have seen in interim makes it just odd to see such a competent selection of OEM and platform pop out of EVGA now. If this were a school exam we'd have to check on EVGA for cheating, but we bought this at retail, it is NOT a sample from EVGA. This is what users get, and it is good. This is kind of product that if it carries through the rest of the line should make established players like Corsair sweat as this unit is passing those PSUs by and the likes of Antec, SilverStone, and Seasonic concerned because if EVGA can keep this up that object in the mirror is closer than it appears and it says EVGA on the front license plate. Everything is not perfect with the SuperNOVA 1300 G2 as there are some build quality issues that should be addressed before this carries a price premium (soldering and component choices) as well as the awful support and Transient Load Test results but substantially, this unit is head and shoulders above what EVGA has been doing. The only thing this leaves me wondering is, what do the rest of EVGA's newer products look like?

The Bottom Line

The EVGA SuperNOVA 1300 G2 is an example of a power supply that represents a real aboutface for EVGA. Previous offerings have been, well, anywhere from just plain bad to just plain, plain. Today, the SuperNOVA 1300 G2 is not bad, it's not good, it's not even really good. The EVGA SuperNOVA 1300 G2 is bordering on excellent. The build quality is a good bit ahead of previous offerings and it makes almost all of the right choices but the documentation and support really hurts this unit out of the gate. When we look to the performance of the SuperNOVA 1300 G2, it is quite literally class leading in the voltage regulation and the DC output quality. Those two factors alone are so good that it makes the unit worth buying even though the Transient Load Test results are kind of disappointing (but still in specification) and the unit probably could be a bit quieter for some people's liking. When it comes to pricing, we purchased SuperNOVA 1300 G2 unit for $151.99 free Prime shipping; currently $179.73 at Amazon. Today you can purchase it for $154.99 with Free Shipping after a $35.00 MIR. That is literally the lowest price you will find on any of the units we have compared this unit to today by a clear margin, even without the rebate.

The EVGA SuperNOVA 1300 G2 has class leading performance in the majority of metrics and surpasses all the contenders in the value category as well. What does that mean? That means go buy the EVGA SuperNOVA 1300 G2 for you next build that needs a quality high powered PSU that will not break your bank. So yeah, its a badass.

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EVGA SuperNOVA 1300 G2