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Author Topic: Opinions please! Blizzard1260 or Apollo 1260  (Read 1473 times)

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Offline patrik

Re: Opinions please! Blizzard1260 or Apollo 1260
« on: November 12, 2005, 02:12:28 AM »
@all:

Does anyone have any testresults for chipmem-access for an Apollo1260 with say bustest?

As the B1260 isnt directly lightyears away from the card which is the fastest I have seen in this aspect - the B1230IV, I got interested in how big the difference really is.

These are the results for a B1260:
Code: [Select]
BusSpeedTest 0.19 (mlelstv)   Buffer:     262144 Bytes, Alignment: 32768
========================================================================
memtype   addr       op         cycle     calib         bandwidth
chip      $00018000  readw     887.6 ns   normal       2.3 * 10^6 byte/s
chip      $00018000  readl     888.1 ns   normal       4.5 * 10^6 byte/s
chip      $00018000  readm     888.1 ns   normal       4.5 * 10^6 byte/s
chip      $00018000  writew    692.2 ns   normal       2.9 * 10^6 byte/s
chip      $00018000  writel    692.0 ns   normal       5.8 * 10^6 byte/s
chip      $00018000  writem    692.4 ns   normal       5.8 * 10^6 byte/s

And these are the results for a B1230IV:
Code: [Select]
BusSpeedTest 0.19 (mlelstv)   Buffer:     262144 Bytes, Alignment: 32768
========================================================================
memtype   addr       op         cycle     calib         bandwidth
chip      $00018000  readw     890.1 ns   normal       2.2 * 10^6 byte/s
chip      $00018000  readl     890.3 ns   normal       4.5 * 10^6 byte/s
chip      $00018000  readm     630.5 ns   normal       6.3 * 10^6 byte/s
chip      $00018000  writew    570.8 ns   normal       3.5 * 10^6 byte/s
chip      $00018000  writel    570.8 ns   normal       7.0 * 10^6 byte/s
chip      $00018000  writem    570.8 ns   normal       7.0 * 10^6 byte/s


/Patrik
 

Offline patrik

Re: Opinions please! Blizzard1260 or Apollo 1260
« Reply #1 on: November 12, 2005, 12:12:36 PM »
@fragment:

Cheers! :)


/Patrik