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here is a comparison between dolphin and playstation2
Will dolphin soar?
Polygon Power
 | Dolphin: N/A. Suspected to be in the 20 million polygons per second range. |
| PlayStation 2: Around 20 million polygons per second |
| Dreamcast: Around 3 million polygons per second |
| Nintendo 64: Around 150,000 polygons per second |
| PlayStation: Around 360,000 polygons per second (lacks comparable effects) |
Main Clock Speed
| Dolphin: 400MHz |
| PlayStation 2: 300MHz |
| Dreamcast: 200MHz |
| Nintendo 64: 93.75MHz |
| PlayStation: 33.86MHz |
Memory
| Dolphin: N/A. Dolphin's graphics chip alone will feature up to 16MBs of embedded DRAM
though. |
| PlayStation 2: 32MB Direct Rambus RAM |
| Dreamcast: 16MB (plus 8MB Video RAM, 2MB Sound RAM) |
| Nintendo 64: 4MB (+parity) Rambus D-RAM (expandable to 8MB) |
| PlayStation: 2MB (plus 1MB Video RAM, 512kb Sound RAM) |
Memory Bus Bandwidth
| Dolphin: 3.2 GB/s (Gigabytes per second) |
| PlayStation 2: 3.2 GB/s (Gigabytes per second) |
| Dreamcast: 800 MB/s (Megabytes per second) |
| Nintendo 64: 500 MB/s (Megabytes per second) or about 0.5 GB/s |
| PlayStation: 132 MB/s (Megabytes per second) |
Software Format
| Dolphin: Proprietary DVD, 4.7 GB capacity |
| PlayStation 2: Proprietary DVD, 4.7 GB capacity |
| Dreamcast: Propriety CD, 1 GB capacity |
| Nintendo 64: Cartridge, 64MB capacity (so far) |
| PlayStation: CD, 650 MB capacity |
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