When selecting a DSP board, you must prioritize the Processor Architecture (Fixed-point vs. Floating-point) based on your precision needs. Key metrics include Clock Speed (MHz/GHz), MIPS/FLOPS performance, and Memory Capacity (L2/L3 Cache and external DDR support). For high-speed data acquisition, verify the ADC/DAC resolution (bits) and sampling rates. Additionally, ensure the board supports necessary I/O interfaces such as PCIe, Ethernet, UART, or CAN bus to match your system integration requirements.