|                                                                     | 
| name                Mega Drive      Super Famicom   A'can           | 
+-------------------+---------------+---------------+-----------------+
| CPU               | 68000+Z80     | 65816+6502    | 68000+6502      | 
| SYSTEM RAM        | 32K Words     | 32K Words     | 32K Words       | 
| VRAM              | 64K Bytes     | 128K Bytes    | 128K Bytes      | 
| DMA number        | 1             | 8 (block move)| 3               | 
| Sub System RAM    | 8K Bytes      | 32K Bytes     | 32K Bytes       | 
| PSG               | YM2612 (FM)   | PCM16 Channels| PCM16 Channels  | 
| CPU Clock         | 6.8 MHz       | 1 MHz         | 10.6 MHz        | 
| BG layerˇA        | 2 + 1/2       | 4             | 5               | 
| SIZE              | Max, 2*2      | Max, 2*2      | Max, 2*2        | 
| color             | 64/512        | 256/32768     | 256/32768       | 
| zoom in/out retort| N             | 1 Ľh          | 2 żď 1          | 
| masoic            | N             | Y             | Y               | 
| Graphic Layer     | N             | N             | 1               | 
| mix color with BG | N             | N             | Y               | 
| vertical change SZ|               |               |                 | 
| and water mirror  | N             | N             | Y               | 
| Display Window    |               |               |                 | 
| Mask              | N             | N             | Y               | 
| Sprite number     | 20/Line,      | 32/Line,      | 40/Line,        | 
|                   | 80/Frame      | 128/Frame     | 320/Frame       | 
| Sprite Max,Size   | 32 * 32       | 64 * 64       | 256 * 256       | 
| H.V Mirror        | Fony only     | Y(Font+Dio)   | Y(Font+Dio)     |