> Not sure what a blade server is?
Computer used to be a room full of racks.
When ARPA started, a DEC-8 computer was a 8U rack box (often a full rack with all the extras).
IBM PC/XT/AT is roughly a 4U rack size.
Then came 2U and 1U rack boxes.
You can get 42 1U machines in a rack.
What's smaller than 1U?
They consolidate the power supply, fans, and some I/O in a several-U chassis with a bunch of slots for "blades". A blade is a small computer in sub-rack size. You put 8 or 16 or more blades in one chassis. You can swap-out blades for failure or upgrade.
I do not see why you or Jim care. At your end, computer is computer. Any CPU or MHz you can get in a blade you can get in a 1U rack. If you are very hot to trot you can probably stay one step ahead with generic motherboards than with proprietary blades.
And unless you pay for dedicated hardware, if the CPU is so fast it loafs, the hosting boss will just put more virtual machines per physical machine until complaints rise. Maybe for a buck a month extra, they haven't got them fully overloaded yet.
Where it matters is hosting outfits that pay for floor space (or own a floor and don't care to buy more floor). Blades can triple the number of CPUs per rack.
I suspect the "able to run faster, jump higher" promo is more about benefit to the hosting operation (charging users extra to finance the transition to blades) than about benefit to you or me.