The following are sample results optimized for speed. If all I/Os are routed off chip additional IOBs are required.
| Xilinx Devices |
Slices |
GCLK |
IOBs |
Fmax (MHz) |
| Spartan-3E 3S1600-5 |
2949 | 1 | 60 | 70 |
| Virtex-4 4VLX25-12 |
2828 | 1 | 60 | 102 |
| Virtex-II 5VLX30-3 |
1114 | 1 | 60 | 195 |