急に気になって歴代のINTEL Thunderboltチップとコードネームを調べてみました。
Thunderbolt chip
Light Ridge CV82524EF/L
Eagel Ridge DSL 2310
Port Ridge DSL 2210
Cactus Ridge DSL3510 DSL3310
Redwood Rdige DSL4410 DSL4510

Thuderbolt 2 chip
Falcon Ridge DSL5320 DSL5520

Thunderbolt 3 chip
Alpine Ridge DSL6340 DSL6540 JHL 6240 JHL6540 JHL6340
Titan Ridge JHL7540 JHL7340 JHL 7440

Thunderbolt 4 chip
Mapple Ridge JHL8540 JHL8340
Goshen Ridge JHL8440
Burnside Bridge JHL8010R