Author: Robert Hyatt
Date: 19:49:44 03/10/00
Go up one level in this thread
On March 09, 2000 at 17:42:48, Tom Kerrigan wrote: >On March 09, 2000 at 14:16:30, Dann Corbit wrote: > >>On March 09, 2000 at 14:14:26, Tom Kerrigan wrote: >>[snip] >>>I think SMP with Athlons will be extremely cool, because they are cheap. I also >>>think the bus design is better for SMP, but I might be wrong. >> >>IIRC, some of the early Athlon chips did not have SMP support (although I know >>it was planned). Has it been added? Have SMP Athlon machines been released? > >I don't know of any changes to the Athlon since its introduction. > >I remember reading that the Athlon has SMP support, but I can't remember where. >It makes sense, though, because many of the people who designed the Athlon also >worked on the PA8000 and the 21264, which have SMP support. > >I also think one of the main reasons AMD decided to go with the EV6 (?) bus is >because it has inherent advantages for SMP. > >-Tom EV6 is both good and bad. Good for performance. bad for price. it is a 256 bit bus. Which is not cheap, from a memory point of view... Supposedly the athlon is pin-compatible with an alpha, at least that was the original promise, so the el-cheapo machine could be built based on the athlon, but when performance was needed, the athlon could be replaced with a real 21264 (or higher) alpha chip to really go fast.
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