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

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

14. Printing statistics.

=== c2670_nem ===

   Number of wires:                692
   Number of wire bits:            692
   Number of public wires:         373
   Number of public wire bits:     373
   Number of ports:                373
   Number of port bits:            373
   Number of memories:               0
   Number of memory bits:            0
   Number of processes:              0
   Number of cells:                369
     and_3T                         30
     inv_3T                         31
     mux_3T                         64
     nand_3T                       103
     nor_3T                         81
     or_3T                          16
     xnor_3T                        33
     xor_3T                         11

   Chip area for module '\c2670_nem': 1593896.000000
     of which used for sequential elements: 0.000000 (0.00%)

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

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

14. Printing statistics.

=== c2670_nem ===

   Number of wires:                680
   Number of wire bits:            680
   Number of public wires:         373
   Number of public wire bits:     373
   Number of ports:                373
   Number of port bits:            373
   Number of memories:               0
   Number of memory bits:            0
   Number of processes:              0
   Number of cells:                357
     and_4T                         89
     and_not_4T                     21
     inv_3T                         28
     mux_4T                         65
     nand_4T                         1
     or_4T                          61
     or_not_4T                      44
     xnor_4T                        32
     xor_4T                         16

   Chip area for module '\c2670_nem': 513072.000000
     of which used for sequential elements: 0.000000 (0.00%)

------------- Muxig ---------------

16. Printing statistics.

=== c2670_nem ===

   Number of wires:               1441
   Number of wire bits:           1441
   Number of public wires:         373
   Number of public wire bits:     373
   Number of ports:                373
   Number of port bits:            373
   Number of memories:               0
   Number of memory bits:            0
   Number of processes:              0
   Number of cells:               1122
     inv_3T                        405
     mux_4T                        717

   Chip area for module '\c2670_nem': 1393296.000000
     of which used for sequential elements: 0.000000 (0.00%)

------------- Stats ---------------
Area 3T: 1593896.000000
Area 4T: 513072.000000
Ratio 4T->3T: .32189804102651615914%
Area MUX: 1393296.000000
Ratio MUX->3T: .87414486265101361694%