You might be able to buy a smaller server but the rack density doesnt necessarily change. You still have to worry about cooling and power so lots of DCs would have 1/4 or 1/2 racks.
Sure. I wasn't really thinking of density, just the interesting start of the "death" of 4 socket servers. Being an old-timer, it's interesting to me because "typical database server" has been synonymous with 4P/4U for a long, long time.
