50 vs. 75 Mhz

[gbu@lochness.uhc.com (Gary Udstrand)]

I am ordering a TP755 laptop. I have found 2 different setups that 
are available to me. One is the TP755C w/540meg HD and a 50Mhz processor,
the other is the TP755Cs w/340meg HD and the 75Mhz processor.

My question: is the 75Mhz that much faster than the 50 Mhz?  I would
prefer the larger hard drive and the active matrix screen if the speed
difference is not that great.  I also understand that the 50 can be upgraded
to the 75, does anyone know the cost?

TIA
-- 
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Gary Udstrand               |  | \|/ |  | AT&T:      (612) 945-6523
Advanced Technology, IS&T   |   \(_)/   | Fax:       (612) 945-6502 
United HealthCare Corp       \_________/  E-Mail:       gbu@uhc.com

"A sufficiently high level of technology is indistinguishable from    
 magic."
                                             -Arthur C. Clarke