MP 1,1-5,1 Performance mystery 3,1 slower than 2,1

[dougp59]

First Unit:
1,1 flashed to 2,1 ad pikyfied to run El Cap. Has 2 x 3.0 Quad Core Xeons. 28Gb RAM, ATI Radeon HD 5770 1024 MB
Boot drive is in slot 1 and is a Samsung EVO SSD 250GB SATA
Boot time is 36 Seconds.

Second Unit:
3,1 running Mojave. Has 2 x 2.80 Quade Core Xeons. 32 GB RAM. Nvidia GTX 660 TI 2048 MB in PCIe x16 slot.
Boot drive is a WD 250GB Blue SATA SSD 3D NAND
Boot time is 66 Seconds.

Is it the OS is more robust and thus takes longer?

 

[Ludacrisvp]

The newer OS is slower.
I loaded leopard on my 3,1 again a couple months ago and it SCREAMS it’s at the desktop nearly before the chime is done.
[automerge]1569036569[/automerge]
Oh and im sure that Samsung SSD is way faster than the WD blue drive.

 

[flygbuss]

Same here. The remaining two cMPs (10.11) I have are the fastest booting Mac desktops in my possession.
(5,1 and 6,1 take longer even though the boot drive itself is faster)
I have one 5,1 still on 10.8.5 for audio setup / peripheral reasons and even this machine takes a little longer to boot.
I always wondered about that.
But, in my case I always blamed the additional peripherals connected to the Macs. I never compared the machines booting without anything but mouse / keyboard and display connected.