🚀 go-pugleaf

"Rev. Timothy D. Schellenbach" <tschellNOSP@Muslink.net> wrote:

>AMD 5x86, despite the confusing name, is a 486 chip.  It goes into a 486
>motherboard socket (socket 3) and replaces 486's.  If Intel had mfg'd a
>486 that went 133MHz, it would be about the same as a P75, too.  The K5,
>OTOH, is comparable to Pentiums at same model "speed" (I say it that way
>because for advertising reasons AMD marketed the K5 like Cyrix does,
>using pentium equivalency ratings instead of true clock speeds).  

But; guess what?  Not only is the K5 "PR133" actually clocked at
100MHz, it has *exactly* the same FPU as the K5 "PR100" - they only
optimised the integer part of the chip, and left the clocking and FPU
completely unchanged.  

Now here's the kicker; the K5's FPU is a dog, and on one set of FPU
benchmarks is *slower* than the 5x86DX4-133, even at 100MHz!

So, depending on what he's doing, the K5 "PR133" may very well give
iP75-level FPU performance, or considerably worse.

>K6 is another animal entirely, albeit a highly attractive one AFAIC.
This is true - but I don't trust AMD anymore.  Context follows:

>espomen@erols.com wrote:

>> Well, I don't know about the K6, but I know the FPU of my AMD 5x86 133
>> is only the equivalent of an Intel P75. Which is why I say: Go Intel!

>------- ----- --- -- - -  -   -
"I hold in my hand three letters..."   Ruben/FZ, we miss you