Pros, Cons, And Final Verdict
The following video footage shows our work behind the scenes, demonstrating what we do to break down the PSU.
EVGA dropped a bomb in the mid-range PSU market with its SuperNOVA G3 line. So far, both of the G3 units we've tested registered amazing performance in every area, including load regulation, ripple suppression, and efficiency. On top of that, they feature compact dimensions, which notably boost their power density scores. It seems SilverStone found a worthy opponent in EVGA's new 80 PLUS Gold-rated offerings; the company is no longer the only one with small, high-capacity PSUs.
The only significant downside we came across is the 1000 G3's increased noise output, mostly caused by a less-than-ideal fan profile and low-efficiency 5VSB circuit. An overpopulated PCB and the fan's small dimensions likely forced Super Flower to tune the fan profile aggressively. An extra-long 10-year warranty probably played a role in this decision, too. In order for a power supply to last that long, it must keep its internals operating at safe temperatures all of the time. As far as the 5VSB circuit goes, Super Flower apparently didn't pay enough attention there, so the 5VSB rail's performance isn't up to the standard set by the other rails. This is a great shame. Under light loads, increased vampire power totally cripples the 5VSB's efficiency, so the 1000 G3 can't keep consumption under 0.5W with up to 0.225W loads at standby and with 230V input, as the ATX spec recommends.
EVGA's new SuperNOVA G3 units are definitely improved versions of their predecessors, which couldn't have been easy to achieve given the G2's admirable qualities. With much smaller dimensions, fresh looks, an HDB fan, and an even more capable platform, the G3s will quickly become a favorite among enthusiasts looking for a reliable, high-performance PSU.
Only the folks who prioritize noise over other attributes will find themselves let down by the high-end G3 models. Unfortunately, Super Flower neglected to optimize this platform for quieter operation. We believe the 1000 G3 could be made to run stably at a slower fan speed without risking the PSU's reliability over its warranty period. We can only hope that whatever succeeds EVGA's P2 and T2 lines will be more suitable for quiet systems, since they'll sport higher efficiency.
In any case, if you don't mind the increased noise under mid-range and heavy loads, the 5VSB rail's poor efficiency, or bulkier than normal cables (some of them have extra filtering caps), then the 1000 G3 should cover your needs. A price point of $140 makes this a great bargain, while the normal price of $170 is still considered fair given the build quality and performance levels that this PSU achieves.
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