ADSP-SC58x FFTA Benchmarks

ADSP-SC58x FFTA module is designed for high performance pipe-lined FFT/IFFT operations. The following tables provides the FFTA benchmark numbers measured on the bench with ADSP-SC589 EZ-Kit.

CCLK/SYSCLK/FFTCLK in MHz	No. of Points	CFFT Performance in CCLK ccyles	CFFT Performance in us	IFFT Performance in CCLK ccyles	IFFT Performance in us
450/225/225	64	334	0.74	333	0.74
	128	389	0.86	389	0.86
	256	677	1.50	677	1.50
	512	1259	2.80	1259	2.80
	1024	2485	5.52	2485	5.52
	2048	4953	11.01	4953	11.01
500/250/250	64	320	0.64	334	0.67
	128	389	0.78	389	0.78
	256	677	1.35	677	1.35
	512	1259	2.52	1259	2.52
	1024	2486	4.97	2485	4.97
	2048	4953	9.91	4953	9.91

Notes:

- The numbers were measured with the ADSP-SC5xx_EZ-KIT BSP example code SmallFFTDescriptorChain available at the path: \ADSP-SC5xx_EZ-KIT\Examples\drivers\fft.

- The code was run for multiple channels (10 channels for 64,128,256,512 points, 4 channels for 1024 points, and 2 channels for 2048 points) and multiple iterations(100). The cycles mentioned are the average core cycles taken per channel per iteration.

Attachments:

SmallFFTDescriptorChain.zip