The new ATX 3.0 standard, together with PCIe 5.0, has meant that little has happened in the field of power supplies. In many cases, this does not mean that you directly have to replace your power supply. If you still have to go out and get a new one, it is well worth considering whether a new ATX 3.0 power supply should not be the way forward.
Most central and visible in the new standard is the new 12VHPWR cable, as part of the modular package. Currently, it is most relevant if you have a graphics card from Nvidia's latest 4000 series, which just comes with a 12VHPWR cable.
If you want to know more about the new 12VHPWR cable together with ATX 3.0 and PCIe 5.0, we review it in our guide here.
Flexible Vertex GX series
The Vertex GX series from Seasonic comes in four sizes, starting at 740W over 850W and 1000W all the way up to 1200W. So you are well covered regardless of what type of system you need to build.
We have visited the 1000W version, which is now a permanent part of our test bench setup.
Regardless of which size you choose, you get a 100% modular power supply that comes with an 80 Plus Gold certification. Seasonic backs it up with no less than a 10-year warranty.
If you want higher efficiency, you can take the leap to an 80 Plus Platinum certification in the Vertex PX series. Here there is an option for 750W, 850W, 1000W and 1200W.
The modular cables have a plastic surface, which may not quite compare to fabric or paracord sleeving, but which is still a good step above standard plastic cables.
There is a wide selection of cables that cover all needs, where even the gradually aging MOLEX connectors are still included. There are SATA connectors for a total of 18 devices distributed over five cables. There is of course a 12VHPWR cable included, but if you are still on the regular PCIe form factor, there are a total of three 8/6 pin PCIe cables included.
Both cables and plugs on the power supply are clearly marked, so it is easy to get things in place in the right places.
The cooling in the Vertex series is managed by a 135mm fluid barring blowing. It is controlled by Seasonics Hybrid Fan Control, which ensures that at low load it runs in fanless mode, where the fan does not need to run, and therefore does not emit noise.
Even under 100% load, Seasonic states the expected noise from the fan at around 20 dBA. To put that into perspective, that's lower than a low whisper.
If you have been tempted by the new Vertex series from Seasonic, you can read more about it at Seasonic here.