Keni
Well... Honestly I inherited mine, but I can give you a good reason...

Do you know of many multi processor windows machines on the market? I found a few, but none are as widely used and tested...

 
That's every single one of them. Mac and PC's.

Both Mac and PC run on Intel. Of course there is more choice with PC (and it is cheaper).


Don't get me wrong Macs are great machines as well, but with Mac you are buying into the OS. For me there doesn't seem to be much difference between Windows and OSX unless there is specific software you wish to run, so it's a personal decision as to which path you take.
 
The idea that Mac is more reliable than PC is sadly a myth, plenty of buggy Mac's out there as well as PC's. Mostly it's down to how they are configured. They are all pretty much the same thing in my book.

How's latency affected by running on bootcamp?

It shouldn't really do anything to latency at all since it's basically a boot manager and lets Windows boot natively.
Same as installing a boot manager on a Windows machine and running OSX, really.

I'm with Alex on the multi CPU thing, multicore is from the software POV the same thing and if for some reason you really do want multiple individual CPUs they really are not that hard to come by. Plenty of off the shelf boards available. Just because it's not popular in cheap consumer systems doesn't mean it isn't "widely used or tested".

If a Mac's BIOS wasn't altered to prevent direct install of Windows, you could just install Windows like any other PC. 
Bootcamp is akin to iTunes... in that it gives control to Apple.
 
We've talked to many folks who've purchased dual-Xeon machines that are slower than a much less expensive 4930k (12 virtual cores) based DAW.  
Research before you pull the trigger...
 
 
 
 
 
 

Sanderxpander
It shouldn't really do anything to latency at all since it's basically a boot manager and lets Windows boot natively.
Same as installing a boot manager on a Windows machine and running OSX, really.

Bootcamp is nothing more than a controlled Boot Manager.
The system at that point *is* a PC.
Bootcamp has absolutely no effect on audio latency.
 
Audio latency has but two sources:

• Audio interface
• Latent plugins

It's pretty weird for them to exercise this kind of control anyway, since OSX is cheap and the Mac hardware expensive. If people have already invested in the hardware I don't really see the point of them needing to take one more step to install Windows.

I hope I wasn't misunderstood...

The machine has two quad core processors...

I know of a couple of windows based pc's made for video work that support dual processor and even one machine that calmed to run 8 processors.... Each of them multi core...

The CPU power of the Mac Pro with dual Xeon quad core processors is quite a machine...

I can work with either OS... For me it's more a matter of which one runs the software I prefer (for the most part) and as I prefer Sonar, I use it as a windows machine... I have a few other pc's as well as an old Mac laptop (used exclusively as a jukebox), an older iPad, and an older iPod touch... I love/hate all of them! ;-)

BTW... I can actually run reasonable projects at a 1.5ms latency...

Keni

Thanks for the info, haven't tried it and was assuming it was like wine... Bit like the hd connectors that are only made different so you have to buy an apple hd... Grrrrr etc

Keni, you are completely understood and multi processor systems are easy to get on Windows, even if not often sold as consumer systems. Again, these are off the shelf mobo's. That said, from the OS POV it doesn't matter if a core is physical or virtual and as Jim Rosenberry pointed out, it's quite possible to get better performance from a single fast chip with many virtual cores.