JT Moree wrote:
*) Legacy hardware like pcmcia and parallel ports. (pcmcia is basically ISA)
*) less market share so less R&D budget on tweaking for performance.
*) optimized for battery life rather than performance.
True to a point, but the flip side is that the components are
deliberately selected to work together as a whole unit, as opposed to
the consumer who will normally buy one component at a time and upgrade
as the budget allows. That results in a system with components of
varying ages and quality, whereas a laptop will have components of the
same age selected by the designer to make best use of their abilities.
I think the main reasons laptops may be slower in some instances are:
a) CPU is usually a cut-down version of a desktop variety - smaller
cache for example, so it's not going to get the throughput of its' big
brother in the desktop.
b) slower HDs, typically 4200rpm instead of the standard 7200 in desktops
c) SATA has not found its' way to laptops yet (AFAIK)
d) Graphics memory is quite often (not always) shared, so that reduces
the resources still further.
Just off the top of my head, if those items could be improved upon there
would be some seriously fast laptops around. However JT is right in
that more power means a cut-down battery life. *That* I think is where
laptop research needs to go now - on squeezing more from the battery.
Kind regards,
Julian
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