From owner-freebsd-hardware  Tue Feb 25 15:58:02 1997
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Date: Tue, 25 Feb 1997 15:53:06 -0800
From: "Jin Guojun[ITG]" <jin@george.lbl.gov>
Message-Id: <199702252353.PAA12462@george.lbl.gov>
To: matt@lkg.dec.com
Subject: Re: Memory speed of P6-200 (256k)
Cc: freebsd-hardware@freebsd.org
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} At 12:48 PM 2/25/97 -0800, Jin Guojun[ITG] wrote:
} >The PCI is a 64-bit wide bus. The maxmimum memory speed you can get from
} >this bus is 1000000000 * 8 / 60ns = 133333333 Bytes/sec (no inteleave).
} 
} That is wrong.  The PCI is typically a 32-bit wide bus running @ up to 33Mhz.
} 
} 4 bytes * 33Mhz = maximum of 132MB/s assuming almost perfect bursting
} and no wait states.
} 
} 64 bit PCI doubles that maximum to 265MB/s.

That is the PCI bus bandwidth, not the memory bandwidth :-)
PCI != MEOROY, but main memory uses PCI bus.

-Jin