Not current with 300 W via the motherboard for PCI Express 4.0

The next version of PCI Express is coming in, where the specification is expected to be completed by the end of the year. The new standard means, among other things, doubled bandwidth, to allow components such as future SSDs and graphics cards to stretch their legs.

However, operating high-performance components via the motherboard will not be relevant. An earlier report said that PCI Express 4.0 should allow up to 300 watts of power output directly without external cables, which now turns out to be a misinterpretation.

The new standard will, just like PCI Express 3.0, be able to handle up to 75 watts directly via the motherboard. A total of 300 watts or higher will be available via external connections, just as the system works today.

This means that high-performance graphics cards will continue to be dependent on, for example, cables directly from the power supply. Current models from AMD and Nvidia often have power values ​​of several hundred watts, which is more than both current or future standards allow via the motherboard.

Source: Update at Tom’s Hardware.