FPGA Speed Grade

Hi Ramanan,

Please refer the below screen shot from https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/cyc3/cyclone3_handbook.pdf?wapkw=cyclone%20III#page=24

C - Commercial Temperature grade

I - Industrial Temperature grade

6 - Fastest speed grade of the FPGA

7 - Slower than 6

8 - Slowest

Speed grade means that the FPGA with 6 can work at faster clock frequencies than 7 and 8.

Regards