Atom 330 Benchmarks, compared to N270 Atom
 

Intel mentioned many times that there will be a dual core Atom and here it is! It looks like another Kentsfield/Yorkfield, one PCB with two dies. This kind of design is not handsome at all but can lower production cost effectively. The dual core Atom (Formal name: Atom 330) also already have been benchmarked with Sandra 2009:

Processor Arithmetic Test

Intel Atom N270 1.6GHz – 8291 kpixels/s
Intel Atom 330 1.6GHz Dual Core – 16920 kpixels/s
Intel Core 2 Duo U7700 1.3GHz – 24742 kpixels/s

Memory Bandwidth Test

Intel Atom N270 1.6GHz – 3.54 GB/s
Intel Atom 330 1.6GHz Dual Core – 7.18 GB/s
Intel Core 2 Duo U7700 1.3GHz – 9.53 GB/s

source: http://forum.eeeuser.com/viewtopic.php?id=43085