Monitors are 30" as AQUADock noted. I bought them 6-7 yrs ago; this is their third Mac Pro.
The new Mac Pro is quiet. Even running CPU @ 30% for 30 minutes, the chassis as a whole becomes quite warm but the fan remains <800 rpm. I can hear a sine wave UPS that is 15 ft behind me over the new Mac Pro 18 inches from me.
I haven't done any side-by-side comparisons. This was really about upgrading my secondary workstation from a Mac Mini that kept locking up and behaving badly with 30" displays.
Old Pro is a 2.4 ghz 12 core with the Mac Sapphire card. Aperture on the new Mac is definitely faster, and resuming a large memory development VM from the internal flash on the new Pro is materially faster than the Areca SAS RAID in the old Pro.
Too many words for a picture thread, so:
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