[directfb-users] G400 performance boost!

[Ville Syrjälä <syrjala@sci.fi>]

I just poked around in matroxfb to get the G400 chip clocked properly. The
results are quite good. df_dok results at 1024x768@RGB16. CPU is a Duron
1300MHz.

Benchmarking with 256x256 in 16bit mode... (16bit)

Anti-aliased Text                              3.001 secs ( 1073.642 KChars/sec)
Anti-aliased Text (blend)                      3.001 secs ( 1073.642 KChars/sec)
Fill Rectangles                                3.000 secs ( 3158.835 MPixel/sec)
Fill Rectangles (blend)                        3.017 secs (  241.116 MPixel/sec)
Fill Triangles                                 3.000 secs ( 2005.401 MPixel/sec)
Fill Triangles (blend)                         3.005 secs (  236.627 MPixel/sec)
Draw Rectangles                                3.001 secs (   73.642 KRects/sec)
Draw Rectangles (blend)                        3.003 secs (   29.570 KRects/sec)
Draw Lines                                     3.001 secs (  359.213 KLines/sec)
Draw Lines (blend)                             3.004 secs (  147.802 KLines/sec)
Blit                                           3.011 secs (  444.016 MPixel/sec)
Blit colorkeyed                                3.008 secs (  455.353 MPixel/sec)
Blit with format conversion                    3.016 secs (  208.602 MPixel/sec)
Blit from 32bit (alphachannel blend)           3.036 secs (  179.166 MPixel/sec)
Blit from 8bit palette                         3.027 secs (   67.116 MPixel/sec)
Blit from 8bit palette (alphachannel blend)    3.903 secs (    5.037 MPixel/sec)
Stretch Blit                                   3.013 secs (  222.918 MPixel/sec)
Stretch Blit colorkeyed                        3.016 secs (  223.325 MPixel/sec)

50% increase in most benchmarks! Before my G450 was faster than the G400
in most categories but now it can't keep up in any bechmark ;) I'd like to
see this compares to a G550. Anyone care to post some results?

-- 
Ville Syrjälä
syrjala@sci.fi
http://www.sci.fi/~syrjala/


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