Table 6 Latency as a function of N
From: Low power reconfigurable FP-FFT core with an array of folded DA butterflies
FFT Size ( N) | Latency | Throughput (KS/s) |
|---|---|---|
64 | 7 μs | 119.375 |
128 | 15.56 μs | 139.375 |
256 | 38.36 μs | 159.843 |
512 | 87.36 μs | 180.625 |
1,024 | 0.196 ms | 201.601 |
2,048 | 0.435 ms | 222.625 |