GAMEPOWER Gp-650 PC Power Supply Unit: 650W, 80 Plus Bronze Certified, 85% Efficiency

Nice low cost PSU

Marvin D. Shafer · 2026-02-28 · via amazon

They clearly tell you, this is not a modular power supply, but people tend to look at pictures, and not read. I feel these pictures are misleading, because they do not accurately reflect the product. They say "Provides 85% power efficiency and no power wasted", and I say "huh?". If no power was wasted, then it would be 100% efficient. Well, first off, I did some searching online, and one test of this PSU from a few years ago, show it was 79% efficient. It is possible, it could have been updated to be more efficient since then, but still I don't believe their claims of 85% efficiency. Also, efficiency is not linear. All switching PSUs will be a little more or less efficient, depending on the load, which also varies. I think a lot of people don't understand the efficiency of a power supply. To keep things short, basically the process of converting the wall power to something your computer can use incurs losses, which are expressed as heat. A higher efficiency power supply will therefore run cooler, and use less electricity, because it has lower conversion losses. If you can afford it, shoot for a 90% (or better) efficient power supply, if heat and power usage are a concern to you. This does not appear to be a bad PSU for budget minded buyers. The video on this listing does show the cables, a little bit. The cables are typical for nicer PSUs, with a mesh around the wires. I have seen some reviewers complain (same brand, but different model psu) of the fan going bad prematurely, but I haven't used it long enough to experience that, but if I do have (unwarranted) problems in the future, I'll be sure to update this. As a general rule of thumb, I try not to push my PSUs over 80% their rated capacity. This is 2 fold. First off, many PSUs are overrated. And second, not pushing it to it's limit will allow it to run cooler, and generally give longer life. The machine I'm using this PSU in has modest requirements, so it's not pushing this PSU too hard, and it's working well for now. So far, this seems like a pretty decent budget PSU.

Dave · 2024-03-21 · via amazon

Works great with no issues

Vanessa Wright · 2025-11-13 · via amazon

Perfect fit, easy replacement and quiet . Not crazy about the fan blowing from inside the case down, but since I was in I also added 2 more case fans so will be ok. The CPU power does not fit but ordered a reducer so had to wait a day with no pc.( my fault)

Kindle Customer · 2024-07-20 · via amazon

This Power Supply is mounted in my old computer and is functioning properly. I had to add a four plug connector to one of the six pin power connectors to accommodate my 2006 Mother Board. All is working well.

Lance L. Landon · 2024-08-05 · via amazon

Best Buy

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MSI

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Newegg

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Newegg (Open Box)

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