The graphing above is a matter of history
Previously, although most motherboards had a few PCI-Express x16 sockets, most of them (except for the high end) had the second sockets available electricity was x8, and that is why we always saw the graphics card embedded in the PCI-Express top socket. However, this has long since changed and almost all motherboard cabinets already have a few x16 electric x16 bases, so in terms of working conditions it won't really matter how much artwork you put into them.
Today almost everyone continues to add a graphics card to PCI-Express high-end, but this is it it belongs to the estate or rather to get lazy, because if you doubt that the overhead socket, which is too close to the base of the processor, is always all the running electricity. So, the first thing we must do Check the board manual to see if all PCI-Express bases in it are the same, or else not by senior management with their full potential.
And be aware of this, because some motherboards, especially input or middle grades, make the second line PCI-Express "dump" when we use SSDs in M.2 or SATA-Express format, but if we don't have one or else, yes they'll be electric x16.
The second PCI-Express graphics card socket is better
As long as we pay attention to the above and have ensured that the two foundations are the same and will give us the same functionality, it is better to include the second drawing. Why? Because we will be separating the drawings from the processor, so that the hot air chasing the graph no longer goes directly to the heatsink but will be far, thus improving box flow and get better temperatures, especially for the processor.
On the other hand, in the case of the plates it has M.2 bases Within PCI-Express Slots, we will also separate them from drawings, as you know that they are a component that generates a lot of heat on a PC, so we will too improve their operating temperatures (and with this we will help to avoid Thermal Throttling as well, therefore, and improve its efficiency).
So, you realize that it's not always easy to install graphics on the first PCI-Express, and in fact, if they are both the same, it's better to do it a second time because we will be improving air flow and system temperatures. All you have to do is look at the handwriting to check it out.
