A deign-1 is implemented on the Virtex5 FPGA device and it utilizes the following resources:
LUT4 = 3
LUT5 = 29
LUT6 = 25
MUXF7 = 3
Similarly, deign-2 is also implemented on the same Virtex5 FPGA device and it utilizes the following resources:
LUT3 = 2
LUT4 = 47
LUT5 = 25
LUT6 = 10
MUXF7 = 5
How to compute the equivalent area for the above two designs for fair comparison?