The Sandy Bridge Es got the generation prefix from Ivy, and Ivy gets its from Haswell. It's just Intel's way of saying it's better than other chips of the same microarchitecture.
In certain thread-heavy applications (such as protein folding simulation, rendering and video transcoding) the extreme-series chips with the last microarchitecture will beat the standard and K series chips of the current microarchitecture, even though in anything not using all the cores and all the hyperthreads is likely to run slower. These chips are designed for people who have non-standard work to do, or want to say they have the most expensive chip available, and at least the latter of these groups wouldn't want to buy a new $1000 CPU when there were already others with higher model numbers before it was released.
In certain thread-heavy applications (such as protein folding simulation, rendering and video transcoding) the extreme-series chips with the last microarchitecture will beat the standard and K series chips of the current microarchitecture, even though in anything not using all the cores and all the hyperthreads is likely to run slower. These chips are designed for people who have non-standard work to do, or want to say they have the most expensive chip available, and at least the latter of these groups wouldn't want to buy a new $1000 CPU when there were already others with higher model numbers before it was released.
OS: Windows 10 64 bit Professional
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56