>250 MHz in 1993 is insanity, considering that was the 33 MHz 486 era March 1994 was both 486 DX4 100MHz and Pentium 100 R4400 wiki: "In mid-1995, a 250 MHz p

>250 MHz in 1993 is insanity, considering that was the 33 MHz 486 era March 1994 was both 486 DX4 100MHz and Pentium 100 R4400 wiki: "In mid-1995, a 250 MHz part began sampling." Pentium 200 came out in June 1996. So ~one year clock wise, probably two-three years for performance (1998 >400MHz Pentium 2).