Article View: alt.comp.hardware
Article #2051Re: MMX-upgrading
From: Steven C. Perkins
Date: Mon, 17 Feb 1997 00:00
Date: Mon, 17 Feb 1997 00:00
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AMD has supposedly re-engineered their MMX chip to minimize the
switching penalty. It may be a better MMX chip than the Intel. The
question now is whether it matches the FP performance of an Intel chip.
SCPerkins
regan wrote:
>
> The one thing that no one has mentioned (or known about) is that
> one drawback of the MMX is that the MMX function of the CPU cannot be
> used at the same time of the floating point unit. So any of your
> games or other programes that use the MMX and uses the floating point
> unit will be slowed down, because the two are constantly switching
> back and forth between one another. Although the Pentium Pro can get
> around this problem because it's so fast at switching back and forth
> that there isn't a slow down. Just a little unknown piece of information
> about the chip that is being kept silent by Intel. So I wouldn't spend
> the money.
--
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Steven C. Perkins sperkins@andromeda.rutgers.edu
User Services Coordinator http://www.rci.rutgers.edu/~sperkins/
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: ffec8,de6d92d1006e2262 X-Google-Attributes: gidffec8,public X-Google-Thread: f8e37,de6d92d1006e2262 X-Google-Attributes: gidf8e37,public X-Google-Thread: 10265e,de6d92d1006e2262 X-Google-Attributes: gid10265e,public X-Google-Thread: 112149,de6d92d1006e2262 X-Google-Attributes: gid112149,public X-Google-Thread: f5f89,de6d92d1006e2262 X-Google-Attributes: gidf5f89,public X-Google-Thread: 1045b9,de6d92d1006e2262 X-Google-Attributes: gid1045b9,public X-Google-Thread: 106c00,de6d92d1006e2262 X-Google-Attributes: gid106c00,public X-Google-Thread: 109e38,de6d92d1006e2262 X-Google-Attributes: gid109e38,public From: "Steven C. Perkins" <sperkins@andromeda.rutgers.edu> Subject: Re: MMX-upgrading Date: 1997/02/17 Message-ID: <3308CB24.8C8@andromeda.rutgers.edu> X-Deja-AN: 219470689 X-poster: sperkins@andromeda References: <01bc0e20$34773060$7d0002c3@ripper> <32EFAB7B.E5@pagesz.net> <01bc0ed2$8a1b57a0$2a262095@KAUFFMAM.vitro.com> <32F6EE46.7622@oce.nl> <Pine.SUN.3.91.970211095516.18020A-100000@chris> <33042c95.60728333@news.escape.ca> <priss.855852718@tcp.com> <33061241.1E06@bsc.net> Content-Type: text/plain; charset=us-ascii Organization: scp Mime-Version: 1.0 Reply-To: sperkins@andromeda.rutgers.edu Newsgroups: alt.comp.hardware,biz.comp.hardware,comp.hardware,comp.ibm.pc.hardware,comp.sys.ibm.hardware,comp.sys.ibm.pc.hardware,comp.sys.ibm.pc.hardware.chips,comp.sys.ibm.pc.hardware.misc,comp.sys.ibm.pc-hardware,comp.sys.next.hardware X-Mailer: Mozilla 3.01Gold (Win95; I)