Well, you're completely wrong.
Intel:
Desktop
i3: low-end web browsing, email, video watching, document creation, with a GPU also suitable for low-end gaming.
i5: mid- to upper range gaming depending on processor, entry-level graphics and video work.
i7: mid-range graphics and video rendering
i7-Extreme: with multiple video cards for high-end gaming, high-end video/graphics rendering
Servers:
Xeon E3: Entry-level, workstations
Xeon E5: mid-range, highe-end workstations
Xeon E7: high-end servers, up to 8 processors of up to 24 cores each on one motherboard. Custom configuration and build.
Mobile:
Celeron
Atom
Actually, as I type I remember more and more models, so I'm just going to quit.
AMD:
Consoles
Low- to mid-range gaming
At the high end, obsolete, power-hungry monsters that need expensive motherboards and can't hold a candle to an Intel i7,