Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!sdd.hp.com!zaphod.mps.ohio-state.edu!think.com!snorkelwacker.mit.edu!stanford.edu!rutgers!mcdhup!inferno!shane From: shane@inferno.peri.com (Shane Bouslough) Newsgroups: comp.sys.ibm.pc.hardware Subject: Re: 486SX - Intel now telling lies Message-ID: <1991Jun17.185754.10654@inferno.peri.com> Date: 17 Jun 91 18:57:54 GMT References: <1991Jun11.214144.27150@odin.diku.dk> Organization: Periphonics Corp. Lines: 45 From article <1991Jun11.214144.27150@odin.diku.dk>, basker@diku.dk (Tom Thuneby) takes me to task: > > I tried to mail, but the mail bounced. I'll post it instead in the > hope that it will not annoy too many people :) > > shane@inferno.peri.com (Shane Bouslough) writes: >>> 2) More than half of the silicon is used by the coprocessor >> >>Not from the photos I've seen. The cache alone takes up a pretty big chunk. > > I do not recall any details from photos of the chip. However, if > they use six transistors per bit in the cache, then the raw cache > memory would take 192K transistors, or around 1/5th of the silicon. > I don't know how much cache controller, address decorders and the > like would take, but I don't think it would be quite as much. Hmm... > > A little obnoxious remark (sorry, but I couldn't resist :) > How do you know it was the cache that took that chunk of silicon? > Couldn't it just as well have been the multiplication array of the > coprocessor? I for one couldn't tell the two apart. End of remark. > The photo I saw was one of those "And this is the FPU section" shots with red arrows pointing at the chip. I sure wish I could remember the publication I saw it in! > Tom Thuneby (basker@diku.dk) >>Periphonics Corp. | Shane Bouslough is: shane@inferno.peri.com Ride Bike! > ^^^^^^^^^^^^^^^^^^^^^^ Sorry, we just got the official domain recently and the updated map entry hasn't made the rounds yet. Oops! For well deserved flames, send to: ...uunet!mcdhup!inferno!shane -- Periphonics Corp. | Shane Bouslough is: shane@inferno.peri.com Ride Bike! 4000 Veterans Hwy. | or: ...uunet!mcdhup!inferno!shane Bohemia, NY 11716 | "Too slow, Chicken Marango! Too slow for *this* cat!" 516-467-0500 | -Cat, Red Dwarf