In terms of CPU usage for an external hard disk, which is interface represents the lightest load? 400Mbps FireWire or USB 2? I am looking to put an external drive on my system for portability due to a collection of DivX movies.
Firewire has the lightest load on the CPU normally, because it uses a hardware interface chip rather than the chipset.
<font color=blue>Only a place as big as the internet could be home to a hero as big as Crashman!</font color=blue>
<font color=red>Only a place as big as the internet could be home to an ego as large as Crashman's!</font color=red>
It would depend on what interface your PC has. If it has FW, I would use it, but would not go buy a card just for the drive if I had USB2 already.
_____________________________________________
<font color=red> And the sign says "You got to have a membership card to get inside" Huh
So I got me a pen and paper And I made up my own little sign </font color=red>
The desktop has 2 onboard FireWire 400 ports, plus another 1 or two on the Audigy. The laptop only has USB, however most of the drive enclosures I am looking at are only an extra NZ$ 40 so I was figuring I'd go for maximum connectivity options.