335 MB/s IN
280 MB/s OUT
175 MB/s LOOPBACK
32 Bit slave fifo, 100 MHz CLK, Queued transfer, 16 kB burst size
For your information: The speed of 320MB/s upload I reached using 100MHz PCLK, 16 Packets per Burst, Auto DMA Mode, AMD mainboard with integrated PCIe 2.0 USB SuperSpeed Host (NEC) and Windows 7 x64 using WinUSB driver. Download speed war ~260MB/s.
Please refer to the following application note to know the strategies for using FX3 controller to maximize USB 3.0 data transfer rate: