Core: Willamette ( 180 nm ); Data width: 32 bit ; L1 cache: 8KB data / 12K micro-operations ; L2 cache: 256KB ; System bus: 400 MHz ; Package: OLGA-423 Features: MMX, SSE, SSE2 n.n. Model sSpec Core stepping Additional description Vcore 1 Pentium 4 - 1,3GHz SL4SF , SL4QD, SL5GC B2 1.3GHz/256/400/1.7V; SL4SF COSTA RICA; 3044A789-0353; i ©'00; 4046A613 1.7 V 2 Pentium 4 - 1,3GHz SL5FW , SL4QD, SL5GC C1 1.3GHz/256/400/1.75V; SL5FW MALAY; L124A677-0143; i ©'00; M126A191 1.75V 3 Pentium 4 - 1,4GHz SL4SC , SL4SG, SL4WS B2 1.4GHz/256/400/1.7V; SL4SC COSTA RICA; 3117A124-0674; i ©'00; 4117A288 1.7V 4 Pentium 4 - 1,4GHz SL4X2 , SL4SG, SL4WS C1 1.4GHz/256/400/1.75V; SL4X2 MALAY; L117A844-1011; i ©'00; M118B245 1.75 V 5 Pentium 4 - 1,5GHz SL4SH , SL5TN, SL5SX, SL4TY, SL4X3 B2 1.5GHz/256/400/1.7V; SL4SH MALAY; L104A307-0623; i ©'00; M106A463 1.7 V 6 Pentium 4 - 1,5GHz SL4WT , SL5TN, SL5SX, SL4TY, SL4X3 C1 1.5GHz/256/400/1.75V; SL4W...