How to thermally simulate an FPGA accurately

Hi Eng Wei, Yes that’s the document I was referring to which shows a thermal gradient on the device, but that methodology only assumes you apply an even power source to the FPGA die, which is hugely unrealistic. I’m hopefully looking for other people who have researched into accurately modelling an FPGA for thermal results, which is more reflective of a typical FPGA logic utilization. Even if that cant reliably be done, possibly some information as to what the accuracy of the Intel method actually is? Thanks, Max