Jenn Lee over at Pocketables has assembled a comprehensive look at the 8-inch high-resolution (1600×768) Sony VAIO P Series, including faster models not yet available in the US.
The models available in the US are all powered by Intel’s 1.33GHz Z520 Atom CPU (the 1.6GHz Z530 and 1.86Ghz Z540 are not available as options yet), however the Pocketables article has information from the various options and models available worldwide.
Hard drive options are either 1.8″ 60GB conventional HDD, or 64GB or 128GB Solid State Drives (SSD).
The most surprising thing is that the faster Atoms, even though they maybe up to 0.53GHz faster (around 40%), the hard drive/SSDs were the biggest factor as far as boosting overall performance. There was a boost from the faster 1.6GHz or 1.86GHz CPUs, and it would be noticeable in some applications, however the 60GB HDD appears to have slowed down those VAIO Ps more than the CPUs. These HDDs are similar to ones available in the HDD-based iPods (not the iPod Touchs/Nanos or other flash-based iPods), and they are around 4200rpm (I believe).
Given the specifications of this ultraportable (Sony doesn’t prefer it to be called a “netbook” or lump it in with that category), it’s obvious that storage read/write access would play a major factor, but I was surprised it was this much of a factor.