------------- normal 3T ---------------

yosys> stat -liberty ./nem_liberty/nem_basic_yosys.lib

14. Printing statistics.

=== c7552_nem ===

   Number of wires:               1217
   Number of wire bits:           1217
   Number of public wires:         315
   Number of public wire bits:     315
   Number of ports:                315
   Number of port bits:            315
   Number of memories:               0
   Number of memory bits:            0
   Number of processes:              0
   Number of cells:                960
     and_3T                         63
     inv_3T                         78
     mux_4T                        126
     nand_3T                       191
     nor_3T                        268
     or_3T                          59
     xnor_3T                       140
     xor_3T                         35

   Chip area for module '\c7552_nem': 3676664.000000
     of which used for sequential elements: 0.000000 (0.00%)

------------- 4T ---------------

yosys> stat -liberty ./nem_liberty/nem_basic_yosys_extended.lib

14. Printing statistics.

=== c7552_nem ===

   Number of wires:               1168
   Number of wire bits:           1168
   Number of public wires:         315
   Number of public wire bits:     315
   Number of ports:                315
   Number of port bits:            315
   Number of memories:               0
   Number of memory bits:            0
   Number of processes:              0
   Number of cells:                911
     and_4T                        165
     and_not_4T                    102
     inv_3T                         48
     mux_4T                        127
     nand_4T                         5
     or_4T                         151
     or_not_4T                     100
     xnor_4T                       165
     xor_4T                         48

   Chip area for module '\c7552_nem': 1420104.000000
     of which used for sequential elements: 0.000000 (0.00%)

------------- Muxig ---------------
------------- Stats ---------------
Area 3T: 3676664.000000
Area 4T: 1420104.000000
Ratio 4T->3T: .38624796826688541569%
Area MUX: 
Ratio MUX->3T: %