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- Path: sparky!uunet!darwin.sura.net!mips!swrinde!zaphod.mps.ohio-state.edu!caen!mtu.edu!abcd.Houghton.MI.US!Jim_Johnson
- From: Jim_Johnson@abcd.Houghton.MI.US (Jim Johnson)
- Newsgroups: comp.sys.ibm.pc.hardware
- Subject: Re: Cyrix Math Coprocessors
- Message-ID: <Jim_Johnson.05zi@abcd.Houghton.MI.US>
- Date: 29 Jul 92 13:06:34 GMT
- Organization: Amiga BitSwap Central Dispatch
- Lines: 26
-
- In a message dated Wed 29 Jul 92 1:05, Dave@bradley.bradley.edu (david Ves
- wrote:
- >
- >> 83D87-33 $ 85
- >> 83D87-25 $ 85
- >
- >Assuming these prices are still valid, is there any reason to purchase
- >the 83D87-25 over the -33?
-
- DV> I would assume that one would have to buy the coprocessor that
- DV> matches the
- DV> speed of his CPU, no?
-
- Actually the answer is no. Just like buying RAM, you can always buy a chip
- rated faster than it will actually be used. The logic of both chips are
- the same, but the 33MHz rated chip is simply capable of running at higher
- clock speeds. (Notice that I said logic, and not circuit - the faster chip
- probally has a minor redesign to handle the higher clock rate). So long as
- the faster chip has the same pin configuration and price - buy it rather
- than the slower chip - MAYBE you will be able to move the chip to a faster
- machine later.
-
- -- Via DLG Pro v0.995
-
- Jim Johnson-
- *** Remember, they're only tools - Not a way of life! ***
-