DSP Design Line reports The SB3500 is the first handset-oriented chip for which BDTI has published certified results on this benchmark, and its results are quite strong. The 500 MHz SB3500 can handle a total of six OFDM channels using its three DSP cores. Each of the cores runs four threads, with each thread running at 125 MHz.
The OFDM benchmark is implemented by splitting each channel’s processing across two threads. This design allows each core to process two real-time channels for a total of six channels. The input data rate for each channel is 20 MSamples/second, and the Sandbridge implementation imposes a two-frame latency.
