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Phanteks AMP GH 750W power supply review: Great buy at sub-$90 street pricing, but comes with a 450W cap on its 12V-2x6 connector
The AMP GH 750 pairs strong 12V regulation and low ripple with Japanese capacitors and an 8-year warranty. Efficiency is fairly good, but we also have a 12V-2x6 connector that is capped at 450W. At street prices under $90, it is one of the better mainstream 750W buys.
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Phanteks is a Dutch company, founded in 2007 and best known for enclosures, alongside air coolers, AIOs, and a steadily expanding catalog of accessories. Power supplies came later, and they have always been commissioned work. As with most such companies, Phanteks does not own a factory, and the identity of the power supply inside a Phanteks box has changed more than once. For example, the original AMP series from 2020 was a Seasonic Focus derivative, a genuinely strong platform that earned the AMP series a significant reputation. The AMP GH is the current mainstream range, and it is a different animal.
The platform of the AMP GH 750W that we are reviewing today comes from Helly Technology, the Guangzhou outfit founded in 2008 that has spent the last few years building the mid- and upper-tier units. Young by the standards of this industry, but no longer an unknown quantity. The series spans 650W to 1200W across Gold and Platinum tiers, in black or white. We take a closer look at the AMP GH 750W to see how it ranks against our best power supplies list. Everything in it is ATX 3.1 and PCIe 5.1 compliant, fully modular, and cooled by a single 120 mm fan that stops entirely at low load. The 750W model reviewed here is the volume seller of the range, aiming squarely at the mid-range gaming build.
The AMP GH 750 arrives in a white cardboard box with mint-green edges and sides, the product name in large type across the front, and the 80 PLUS Gold badge in the top corner. Three black-and-grey strips along the bottom edge carry the three main headline claims: ATX 3.1 PSU, PCIe Gen5.1 support, fully modular. That is about the extent of the marketing. It is a restrained, we dare say almost clinical presentation next to what most of this segment ships in.
Inside, the power supply sits between molded protective inserts, with the cables bagged separately. The bundle is far better than the price suggests and one of the most complete we have seen this year. It comprises of the AC cable, four chrome mounting screws, a very generous bunch of white zip ties, a few black and white Velcro straps, and a bag of white cable combs. There is also an installation guide and manual that are shared across the whole series.
The cables themselves are the highlight. Every wire is individually sleeved in white braid rather than the flat ribbon type this class usually gets, and they stay flexible enough to be easily routed. Even the 12V-2x6 signal wires are, creating a very high-quality aesthetic result. They do take up a little bit more room behind a motherboard tray than flat cables would, but we are certain that this is a sacrifice builders are willing to make. The 12V-2x6 cable is marked 450W on the connector housing and uses mint-green latch tabs, which do double duty as a seating indicator (if you can still see green, the plug is incorrectly seated). The 12V-2x6 and ATX 24-pin cables have cable combs pre-installed.
At 140 x 150 x 86 mm, the AMP GH 750 is about as short as a modern ATX unit gets, which means it will fit anything that takes a standard supply and leave room for cable slack in front of it. Our sample obviously is the white version, and the finish is the first thing worth commenting on. It is a clean, even satin snow white with an exceptional finish. This is not a given with white units, as they can easily look a little grey next to a truly white item/case. This one does not. Phanteks also sells the unit in black, and at MSRP, the black version is $10 cheaper.
The bottom carries a fan grille c