Again, I'm not sure what that means, but it's just impossible as in 2003 Apple didn't have 64-bit OS, so it couldn't support over 4GB. also, Apple has nothing over any other system using ram, so any other system can support the same amount of ram.
I didn't think we were talking servers/workstations. Muilt-processors are a whole different beast as most aren't x86 compatible, although the relatively newer ones do support this thanks to AMD. also, multi-processors have been around for a very long, long time. I almost bought an OS9 server back in early 1980. It didn't turn on so I didn't bother messing with it at all. IIRC, it had 8 Motorola 6809 CPUs. I was into OS9 back then and wanted it badly. But it had to at least turn on. lol.
-=Mark=-
ps, I probably should have added dates. First 64-bit was 2003, first dual core was 2005. So the techlogogy has been around for quite some time. Too bad manufacturers kept selling 32-bit CPUss for so long. 32-bit machines were even being released with vista (late 2006). Mostly laptops at the time, but still very wrong.
-=Mark=-