which CPU shall I use to get a good OC 1.33Ghz AXIA - Y or my 1.4Ghz AYHJA - K

I have those cpu's but I duno which one will overclock better. I know my 1.4 won't go past 1.575mhz Stable , any one think ill have better luck with my 1.33 ? O yea my 1.4 only works on my other mobos like my asus a7m266 my abit kg7 dont reconize it.I wana get 1.7Ghz! watercooled via tap water with a swiftech MC462-A.

1.33-y, you have a better chance to O/C it.