But otherwise... do you really think changing from a 1.83ghz to a 2.16ghz is going to mean the difference between obsolescence and 7 year life? Thats less than 20%. I doubt anyone would ever seriously notice that. If you were talking double the speed, that would be substantial.
A faster clock on a newer 64-bit architecture, you meant to say.
20% faster clock rate - that's 120% (of the original speed).
A Merom (Core 2 Duo) is about 20% faster in 32-bit mode than a Yonah at the same clock, so 120% + 20% = 144% (of the original speed).
Due to the architectural improvements in the 64-bit ISA, many programs run faster in 64-bit mode than in 32-bit mode. One test at BareFeats showed an average of about 20% speedup for a 64-bit program vs. the identical program in 32-bit. So 144% + 20% = 170% (of the original speed).
So, we're looking at an upgrade that's 40% to 70% faster - with the added ability to run 64-bit programs (see various recent threads for people agonizing about whether 32-bit support will be available for new professional apps).
I wouldn't predict 7 years, but I'd feel confident in saying that you're more likely to get a couple of years more life out of an upgrade to a Merom!
Memory has been limited to 2gig on most systems so far, Mini included. Would be nice to support 4gig or more but the current chipset doesn't support it.
Right, but they could support 3.4 GiB or so with the current chipset.
IYou'll be able to get a 300GB hard drive in the Mini.
The 300 GB Fujitsu drive (which by the way hasn't started shipping in quantity) is 12.5mm high - not the usual 9.5mm for laptop drives. Does anyone know if the MiniMac can fit a drive that's 30% taller than the current one?
Can get terabytes externally attached via USB or firewire.
Yes, connected with a rat's nest of cables and power bricks to a bunch of randomly designed external drives. I'm amazed at how messy so many MiniMac installations are....
A mini-tower with a couple of internal 3.5" slots would be so much more elegant.