From: bhenning@wimsey.bc.ca (Bill Henning) Subject: Re: ET4000/W32 and VESA VL-Bus Date: 28 Dec 1992 02:03:50 GMT
In article <003g02AH30U501@JUTS.ccc.amdahl.com> gab10@griffincd.amdahl.com (Gary A Browning) writes:
>In article <BzKqwn.5vA@wimsey.bc.ca>, bhenning@wimsey.bc.ca (Bill
>Henning) writes:
>> The problem with DRAM based accelerators, even if they get 160Mb/sec
>> bandwidth out of the DRAM's is that the bandwidth is not
>> random-access,
...
>> even if the bus interface to the local bus supports it.
>>
>> Bill
>
>Don't overlook bus width in your analysis. The W32 sounds like it is 32 bit
>wide path instead of the 8 (16?) - bit wide path of the standard ET4000.
>This would quadruple (double?) the bandwidth of any type of ram access.
>
>--
>Gary Browning | Exhilaration is that feeling you get just after a
> | great idea hits you, and just before you realize
> | what is wrong with it.
I was already assuming 32 bit bus access - otherwise performance is MUCH
worse.
Bill