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EVGA SuperNOVA 750W G3 Power Supply Review

Author: Lee Garbutt
Manufacturer: EVGA

Specifications and Packaging

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The EVGA Supernova 750W G3 power supply is rated for a combined, continuous output power of up to 750 watts at 50°C operating temperature. The PSU incorporates a single +12V rail that can deliver up to 62.4A (748.8W) on the +12V output.  The PSU includes universal AC line input (automatically adjusts the AC line voltage 100-240 VAC) and active PFC, which makes the unit more environmentally friendly to the local power grid.  

EVGA Supernova 750W G3 PSU Specifications:

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(Courtesy of EVGA)

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Packaging and Parts

The EVGA Supernova 750W G3 power supply arrived packed inside a shrink-wrapped retail box showcasing the unit’s features and specifications.  

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The power supply is wrapped in a black fabric bag and protected by thick foam inserts.

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In addition to the power supply, the box contains a power cord, mounting screws, a User Manual, Velcro cable ties, test connector, and a package of modular cables.

The 750 Supernova G3 power supply comes with a good assortment of eleven modular cables and one 4-pin Molex to 4-pin FDD adapter. (See table above for connector count and cable lengths.)

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(2) 4+4 pin CPU cables, (1) 24 pin ATX cable, and (4) 6+2 pin PCI-E cables

Note: Two of the PCI-E cables are fitted with one 6+2 pin connector while two more PCI-E cables come with two 6+2 pin connectors for a total of four cables and six connectors.

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(4) Peripheral device cables (three SATA and one Molex) and FDD adapter

Video News

January 29, 2018 | 11:27 AM - Posted by Nade (not verified)

Who is the actual manufacturer? Do EVGA produce it themselves or they are partnering with Seasonic or CWT etc ?

January 29, 2018 | 11:57 AM - Posted by boob (not verified)

"Here are a few pictures showing the layout and components inside the EVGA Supernova 750W G3 power supply. The Supernova G3 Series is built by Super-Flower and is based on a second generation Leadex platform."

January 29, 2018 | 12:20 PM - Posted by Anonymoo (not verified)

Have the powersupply manufacturers ever standardized the modular connectors? I have a bunch laying around that I am too chicken to try.

January 29, 2018 | 12:34 PM - Posted by Tim Verry

Hi, I asked in the office chat and unfortunately the answer is no. The modular connectors are not standardized between manufacturers or even between PSUs from the same manufactures (sometimes you can swap them within the same line but not always).

January 29, 2018 | 10:45 PM - Posted by Dub (not verified)

Good review!

Question: how well does this compare to the Seasonic Focus Plus series (SSR-750FX) in your opinion? The F+ kindasorta won by a slim margin in JohnnyGuru's testing, but their rating system is a little... eccentric.

Obviously they're both awesome units but if you had to choose...

I've been a SS loyalist and pricing on the F+ series is very competitive, but there was some concern with the F+ units' small fan resulting in annoying noise.

Another question: what's the benefit of a fully modular PSU? Do they expect people to run their PSUs without the ATX12v cable? Is it just for easy-ish replacement if you happen to damage a cable? Would be a lot more valuable IMHO if they bundled shorter and longer cables for different case/mobo combos.

January 31, 2018 | 12:59 PM - Posted by Lee Garbutt

Thanks, its always good to know that readers find our reviews helpful.

First question: Yes, both the EVGA 750W G3 and the Seasonic 650W Focus+ Gold PSUs proved to be excellent. Performance wise they are very close, both with very good voltage regulation, AC ripple suppression and efficiency (the 750W G3 had slightly better AC ripple suppression). The EVGA G3 also uses a slightly larger fan (128mm vs the Seasonic F+ 120mm) but they both are relatively quiet through mid-power range and both have FDB. And they are both backed by a 10-year warranty. So your final purchasing decision may come down to price - which one has the lower cost when you want to buy one (at this moment the Seasonic 750W F+ is about $20 less than the EVGA 750W G3).

Second question: I personally prefer a semi-modular PSU with a fixed 24-pin, 4+4 ATX CPU, and a pair of PCI-E cable/connectors. Its not like these are optional. Being fully modular adds more connection points (potential for added resistance/slight voltage drop) and a little bulk to the front of the PSU. I suspect manufacturers are going fully modular to lower production costs by eliminating the extra labor required to hand solder fixed leads.

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