If a developer/pro/etc. need 18 cores, most of the time they'll be OK with a top-end i7 -- I think. Therefore it is fair to compare Xeons with i7s, they're not the same but yes, they have overlapping target audience when it comes to desktops.
Not if they need ECC RAM - and if you've got enough professional stuff to fill 128GB of RAM, you really, really need ECC RAM.
(No 128 GB RAM but you're not getting that with a desktop i7 either. Oh and the new HEDT platform that also has "i7"s… not all chips will support quad channel RAM!)
the funnier version: https://www.youtube.com/watch?v=Xah84cJwdxE
http://i.imgur.com/EZ6LyI1.png
http://i.imgur.com/tbwNbdh.png
EDIT: by mistake I originally linked this video I had in my clipboard: https://www.youtube.com/watch?v=5scez5dqtAc
It's possible that Intel might have to claw back Xeon pricing accordingly to defend their market share.
8 core for $600. 10 core for $1k, 18 core for $2k. With 12, 14, and 16 core increments available in-between.
https://www.pcper.com/reviews/Processors/Intel-Core-i9-Annou...
EDIT: read the children posts. I mistakenly read "chip" instead of "line". Of course Xeons are a different line compared to Intels extreme line. The above about the extreme series CPU's being cut down Xeons is still true but in this context wrong and irrelevant.
They bin things for a reason. If you're happy using a less expensive part with fewer features, great, you can save money. If you're making a top-tier "Pro" product you'll want to avoid cutting corners like that.
The materials involved are only one factor.
Also see my edit of my original post where I mistakenly misread "line" as "chip" as stated.
> They bin things for a reason.
Yes, of course, so that the extreme series doesn't cut into the margins of the server market. If you could run RAID 5 and 10 without hardware dongles and ECC on the extreme series some smaller companies would probably prefer the i9 18 core for 2000$ to the 3000-4000$ 18 core Xeons. Again, this is fine, but Xeons and extreme series start of as the same chip. That's all I wanted to say on top of my correction of my original post.