Which is the better chip? 1.1 or 1.1a celeron?

Just as the post states. Which is the better chip? The 1.1, or the 1.1A Celeron? On Newegg where I make most of my hardware purchases, they have the Celeron 1.1 and 1.1a for the same price, except the 1.1 comes with a hsf. So I am just wondering if one is a better stepping than the other?

1.1a = Tualatin Celeron
1.1 = Coppermine Celeron (I suppose that's what's left)

Get the 1.1a.

if your motherboard supports tualatin cpu's, get the 1.1a... if not ehm, well get the 1.1

Thanks for the replies. I will get the Tualatin for sure then.