This is a high-performance PSU with LED lighting for those who need it in their power supply. With Corsair's CX-F line release, you have more options for RGB lighting, and a white version is also available. That said, the CX-F units are stiffly priced, so the price difference to Super Flower's ARGB models is not that high. Given the Super Flower units perform better and are more efficient, it is worth spending a bit more to move to a PSU with the Cybenetics ETA-A and 80 PLUS Gold instead of the ETA-A- and 80 PLUS Bronze efficiency certifications. The only problem is the restricted availability, especially in the US, where Super Flower just made its product available. On top of that, Corsair's support is better.

The Super Flower Leadex III ARGB Gold 650 W offers better performance than the Seasonic Focus Plus Gold model of similar capacity. It is very close to the EVGA SuperNOVA G3 in terms of performance, which has been phased out. The Corsair RM650x offers 2% higher overall performance, but lacks RGB lighting. When it comes to noise output, Super Flower's offering scores pretty well in my average noise chart, staying below 21 dBA, which makes it suitable for those extra-sensitive to noise. Finally, the platform is efficient, but does not meet the newest ATX specification requirement for efficiency over 70% with 2% load. The most significant cons are the in-line caps on the modular cables, which make cable-routing challenging, and the high power-on time (T1), which can create start-up issues with some "picky" mainboards.

Dedicated PCIe connectors would have been nice because some users might utilize the same PCIe cable for power-hungry RTX 3080 or, even worse, RTX 3090 graphics cards. Super Flower should add a notification that a single cable with two PCIe connectors is not enough for those graphics cards or the upcoming AMD Big Navi to their manual (or even as a sticker on their PCIe cables).

Given the releases of new GPU generations from both NVIDIA and AMD, I see no reason for more than four PCIe connectors with less than 850 W maximum power output—let me explain. An RTX 3080 can consume up to 350 W with its power limit enabled, and some custom versions with three PCIe connectors can go up to 450 W. For such a strong card, you also need a powerful CPU, which can easily draw more than 200 W for up to 300 W if it is a high-end Intel/AMD model. The good thing is that CPU utilization during gaming won't be high enough for the CPU to consume a lot of power. That said, do keep every possible usage scenario in mind. Finally, avoid using a PCIe cable with two connectors on a graphics card that may consume a lot of power. Always use dedicated PCIe cables, especially with single +12 V rail PSUs.