24 Oct
2000
24 Oct
'00
7:23 a.m.
I wrote:
No. The 68040 (all variants including the LC and EC)
require a double-speed
clock input, but the internal pipeline does NOT execute at the double
speed. A 68040 with 33 and 66 MHz clock inputs actually runs at 33 MHz.
Bill Layer wrote:
Hmm, what an interesting surprise. I've read
information that supports my
statements in several different places on the net. If this is a 'myth to be
killed' you've got some work ahead of you...
I'm not on any crusade to kill it. But I'll comment when and where I
happen to see it.
It matters not one bit to me that there's a lot of bogus information
about it on the web. None of that has any credibility since it is
flat out contradicted by an authoritative source, the MC68040 User Manual.
Apple's calling them 50 or 66 MHz is an example of what's known as a
"marketing breakthrough". See the TV "Dish" Antenna advertisement on
the milk.com Wall of Shame for a particulary good example of this
phenomena. What especially distinguishes that particular marketing
breakthrough is that they actually explicitly claim IN THE ADVERTISEMENT
that it is "a marketing breakthrough"!
http://www.milk.com/wall-o-shame/dish.html
Best regards,
Eric