From what I can remember:
Intel 486DX2 66 mhz
Intel Pentium 133 mhz
Intel Pentium 3 450 mhz
(Here is where I started to overclock)
AMD Duron 900 mhz @1.3ghz
AMD Athlon XP 2000+ 1.6 ghz @ 2ghz
AMD Athlon XP 3200+ 2.2ghz @ stock
AMD Athlon 64 3400+ 2.4ghz @ stock
AMD Athlon 64 X2 3800+ @ 2.4ghz
Intel Core 2 E2200 2.2ghz @ 3.1ghz
Took me a while to finally switch back to Intel but i'm very happy with my little budget chip, it's a monster overclocker (still using stock cooling too).
Intel 486DX2 66 mhz
Intel Pentium 133 mhz
Intel Pentium 3 450 mhz
(Here is where I started to overclock)
AMD Duron 900 mhz @1.3ghz
AMD Athlon XP 2000+ 1.6 ghz @ 2ghz
AMD Athlon XP 3200+ 2.2ghz @ stock
AMD Athlon 64 3400+ 2.4ghz @ stock
AMD Athlon 64 X2 3800+ @ 2.4ghz
Intel Core 2 E2200 2.2ghz @ 3.1ghz
Took me a while to finally switch back to Intel but i'm very happy with my little budget chip, it's a monster overclocker (still using stock cooling too).