Opinions please! Blizzard1260 or Apollo 1260

[patrik]

@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

[patrik]

@fragment:

Cheers!


/Patrik