Color depth      | 640x480 | 800x600 | 1024x768 | 1280x1024
 -----------------+---------+---------+----------+----------
 256 (8bit)       |   769       771       773        775
 32000 (15bit)    |   784       787       790        793
 65000 (16bit)    |   785       788       791        794
 16.7 Mill.(24bit)|   786       789       792        795