An ASIC is a custom-designed chip tailored for a specific application or function. Once designed and manufactured, its functionality cannot be changed whereas an FPGA is a reprogrammable silicon chip that can be configured by the user after manufacturing to perform a variety of tasks.
- Design Specificity:
- ASICs are custom-designed for a specific application and cannot be reprogrammed.
- FPGAs are general-purpose chips that can be reprogrammed to perform different tasks.
- Development Time and Cost:
- ASICs have longer development times and higher initial costs but are cost-effective for high-volume production.
- FPGAs have shorter development times, no initial NRE costs, and are suitable for low to medium volume production.
- Performance and Efficiency:
- ASICs offer higher performance and efficiency for a given application.
- FPGAs are generally less efficient but provide flexibility and reconfigurability.
- Flexibility:
- ASICs are fixed-function devices.
- FPGAs can be reprogrammed multiple times, providing flexibility and adaptability.