Both have dual core variants. What exactly are you trying to allude to?
This is what I was expecting/hoping for:
Ontario:
1.0 GHz single-core for the ultra low end market
1.0 GHz dual-core for the bulk of the market
1.2 GHz dual-core
Zacate:
1.6 GHz single-core for the ultra low end market
1.6 GHz dual-core for the bulk of the market
1.8 GHz dual-core for the "high end", rather optimistic I admit.
Instead we got:
Ontario:
1.2 GHz single-core <-- I suspect this will represent the bulk of the Ontario market.
1.0 GHz dual-core
Zacate:
1.5 GHz single-core
1.6 GHz dual-core
This means to me that dual-core pricing is likely going to be a bit higher than I hoped, with the product mix for cheap netbooks still mostly single-core.
With 1.0 GHz dual-core Ontario as a near-baseline model, it would have taken over the netbook market by storm. With 1.2 GHz single-core as the real baseline model, it's still an improvement over Atom/GMA, but may not be the "homerun" some people were predicting. Still, it's not completely surprising. The hype was getting out of hand.
BTW, I suspect the orphaned CPU there for AnandTech types may be the 1.5 GHz single-core Zacate.
I can see AnandTechers buying:
Single-core 1.2 GHz netbooks
Dual-core 1.0 GHz netbooks and nettops/SFF machines.
Dual-core 1.6 GHz laptops and nettops/SFF machines.
I'm not entirely sure where 1.5 GHz single-core would fit for AnandTech types. I would buy a nettop with dual-core Zacate, but only if priced right, as in under $400 including Windows 7. Otherwise, I'm less interested, and would still consider an dual-core Atom/ION machine, which is available under $300 complete with Windows 7 Home Premium. In fact, I paid $260 for mine.