THG has published a preview comparing Intel's dual-core 90nm Smithfield with the dual-core 65nm Presler processor.
What we expected in terms of performance came true. Thanks to the L2 cache being doubled from 2x 1 MB to 2x 2 MB with the Cedar Mill core, certain benchmarks improve on the new chip when compared to the Smithfield at the same clock speed--our sample ran 3.0 GHz.Check out the preview over at Tom's Hardware Guide
Once again we included some power consumption measurements. While the single core saved as much as 20% under full load, the dual core Presler managed to reduce overall consumption by as much as 18%, cutting maximum system power from 252 to 214 W.