The first platform we are utilizing is an Intel i7 2600K "Sandy Bridge" CPU overclocked to 4.5GHz. Memory consists of 16GB of DDR3 at 2133MHz. The motherboard is an ASUS P8Z68-V Pro Gen 3. This is based on the Intel Z68 chipset. One interesting note about this configuration, PCI-Express runs at 2.0 maximum with this CPU. Bandwidth is thus reduced when utilizing multi-GPU CrossFire, compared to the other two systems tested.
The final system is an Intel "Kaby Lake" 7700K CPU overclocked to 5GHz. Memory consists of 16GB of DDR4 at 3600MHz. The motherboard is GIGABYTE AORUS Z270X-GAMING 7, based on Intel Z270 chipset.
These three CPU/Systems are what will be compared to each other on each graph, as is, with the video card remaining the control.
I didn't find the right solution from the Internet.