 A few early computer designs were based on it, but most would use the later and greatly improved Intel 8080 instead.The subsequent 40-pin NMOS Intel 8080 expanded upon the 8008 registers and instruction set and implemented a more efficient external bus interface (using the 22 additional pins).Despite a close architectural relationship, the 8080 was not made binary compatible with the 8008, so an 8008 program would not run on an 8080.