PC Perspective - Intel Atom 330 Dual-core Processor Review
What was more surprising was what we found under the hood of the ION reference design that NVIDIA sent us - a dual-core Atom 330 processor that we have yet to see in any other products to date. While all current generation Atom CPUs from Intel are single-core HyperThreaded designs, the Atom 330 has two physical dies on one CPU substrate, each of which is HyperThreaded for a total of 4 threads of CPU power
via pcper.com
Haven't heard of this processor before. And more interestingly in a netbook.