The applet below computes a 256-point FFT a thousand times and displays the average processing in milliseconds.
Average FFT Time in milliseconds for various HW/SW platforms.
| Architecture | C code (Optimized) | Java (Interpreted) | Java JIT (Microsoft) | Java JIT (Netscape) | Java JIT (Sun) |
|---|---|---|---|---|---|
| Sparc 5 (pfeiffer) | 0.49 | 12 | NA | NA | 0.95 |
| Sparc 20 (peace, hoop) | 0.52 | 18 | NA | NA | 1.10 |
| Ultra Sparc 1 (soder) | 0.32 | 10.8 | NA | NA | 0.52 |
| Ultra Sparc 2 (kiosk) | 0.21 | 8.4 | NA | NA | 0.40 |
| SGI (Titan+Colossus) | 0.17 | 5.3 | NA | NA | NA |
| Pentium 166 Mhz | 0.23 | 8.13 | 0.52 | 1.22 | NA |
| Pentium Pro 200 Mhz | 0.10 | NA | 0.22 | 0.44 | NA |